./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/busybox-1.22.0/head-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/busybox-1.22.0/head-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 215d23787da0121fe1d31fb918e95ec539d610f21ad7af0cf3de67b0df205419 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:06:52,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:06:52,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2025-01-10 00:06:52,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:06:52,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:06:52,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:06:52,790 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:06:52,790 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:06:52,790 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:06:52,791 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:06:52,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:06:52,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:06:52,792 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:06:52,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:06:52,793 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:06:52,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:06:52,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:06:52,793 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:06:52,794 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:06:52,794 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:06:52,794 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:06:52,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:06:52,794 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:06:52,794 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:06:52,794 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:06:52,795 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:06:52,795 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:06:52,795 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:06:52,795 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:06:52,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:06:52,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:06:52,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:06:52,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:06:52,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:06:52,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:06:52,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:06:52,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:06:52,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:06:52,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:06:52,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:06:52,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:06:52,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:06:52,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:06:52,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:06:52,797 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 215d23787da0121fe1d31fb918e95ec539d610f21ad7af0cf3de67b0df205419 [2025-01-10 00:06:53,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:06:53,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:06:53,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:06:53,157 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:06:53,158 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:06:53,159 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/head-2.i [2025-01-10 00:06:54,639 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5d5893ae/8dcd9ebc0c94437a992ba10590358b16/FLAGf8a65d249 [2025-01-10 00:06:55,123 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:06:55,124 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/head-2.i [2025-01-10 00:06:55,158 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5d5893ae/8dcd9ebc0c94437a992ba10590358b16/FLAGf8a65d249 [2025-01-10 00:06:55,207 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5d5893ae/8dcd9ebc0c94437a992ba10590358b16 [2025-01-10 00:06:55,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:06:55,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:06:55,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:06:55,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:06:55,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:06:55,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:06:55" (1/1) ... [2025-01-10 00:06:55,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c97e250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:55, skipping insertion in model container [2025-01-10 00:06:55,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:06:55" (1/1) ... [2025-01-10 00:06:55,277 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:06:56,448 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,451 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,453 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,457 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,458 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,459 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,462 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,463 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,464 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,464 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,468 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,470 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,472 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,475 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,476 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,477 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,477 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,478 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,478 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,479 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,481 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,483 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,489 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,493 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,493 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,499 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,503 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,505 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,508 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,510 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,513 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,514 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,515 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,517 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,517 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,518 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,519 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,527 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,536 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,550 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:06:56,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:06:56,613 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:06:56,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:06:56,924 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-01-10 00:06:56,935 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:06:56,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56 WrapperNode [2025-01-10 00:06:56,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:06:56,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:06:56,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:06:56,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:06:56,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:56,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:57,083 INFO L138 Inliner]: procedures = 581, calls = 697, calls flagged for inlining = 30, calls inlined = 28, statements flattened = 1394 [2025-01-10 00:06:57,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:06:57,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:06:57,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:06:57,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:06:57,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:57,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:57,114 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:57,194 INFO L175 MemorySlicer]: Split 566 memory accesses to 19 slices as follows [2, 2, 3, 2, 3, 7, 9, 32, 20, 24, 10, 15, 355, 9, 3, 18, 47, 1, 4]. 63 percent of accesses are in the largest equivalence class. The 379 initializations are split as follows [2, 0, 3, 2, 0, 0, 1, 2, 4, 0, 7, 0, 355, 0, 0, 0, 2, 0, 1]. The 120 writes are split as follows [0, 1, 0, 0, 3, 7, 4, 21, 15, 21, 0, 1, 0, 6, 0, 4, 35, 1, 1]. [2025-01-10 00:06:57,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:57,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:57,279 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:57,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:57,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:57,396 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:57,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:57,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:06:57,432 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:06:57,432 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:06:57,432 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:06:57,433 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (1/1) ... [2025-01-10 00:06:57,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:06:57,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:06:57,479 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) [2025-01-10 00:06:57,489 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 [2025-01-10 00:06:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#0 [2025-01-10 00:06:57,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#1 [2025-01-10 00:06:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#2 [2025-01-10 00:06:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#3 [2025-01-10 00:06:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#4 [2025-01-10 00:06:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#5 [2025-01-10 00:06:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#6 [2025-01-10 00:06:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#7 [2025-01-10 00:06:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#8 [2025-01-10 00:06:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#9 [2025-01-10 00:06:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#10 [2025-01-10 00:06:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#11 [2025-01-10 00:06:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#12 [2025-01-10 00:06:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#13 [2025-01-10 00:06:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#14 [2025-01-10 00:06:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#15 [2025-01-10 00:06:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#16 [2025-01-10 00:06:57,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#17 [2025-01-10 00:06:57,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#18 [2025-01-10 00:06:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#0 [2025-01-10 00:06:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#1 [2025-01-10 00:06:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#2 [2025-01-10 00:06:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#3 [2025-01-10 00:06:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#4 [2025-01-10 00:06:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#5 [2025-01-10 00:06:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#6 [2025-01-10 00:06:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#7 [2025-01-10 00:06:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#8 [2025-01-10 00:06:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#9 [2025-01-10 00:06:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#10 [2025-01-10 00:06:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#11 [2025-01-10 00:06:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#12 [2025-01-10 00:06:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#13 [2025-01-10 00:06:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#14 [2025-01-10 00:06:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#15 [2025-01-10 00:06:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#16 [2025-01-10 00:06:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#17 [2025-01-10 00:06:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#18 [2025-01-10 00:06:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2025-01-10 00:06:57,523 INFO L138 BoogieDeclarations]: Found implementation of procedure _IO_getc [2025-01-10 00:06:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2025-01-10 00:06:57,523 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2025-01-10 00:06:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:06:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2025-01-10 00:06:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2025-01-10 00:06:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2025-01-10 00:06:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2025-01-10 00:06:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2025-01-10 00:06:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2025-01-10 00:06:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2025-01-10 00:06:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2025-01-10 00:06:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2025-01-10 00:06:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2025-01-10 00:06:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2025-01-10 00:06:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2025-01-10 00:06:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2025-01-10 00:06:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2025-01-10 00:06:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2025-01-10 00:06:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2025-01-10 00:06:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2025-01-10 00:06:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2025-01-10 00:06:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2025-01-10 00:06:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-01-10 00:06:57,525 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-01-10 00:06:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-01-10 00:06:57,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-01-10 00:06:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-01-10 00:06:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-01-10 00:06:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2025-01-10 00:06:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2025-01-10 00:06:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2025-01-10 00:06:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 00:06:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 00:06:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 00:06:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-10 00:06:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-10 00:06:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-01-10 00:06:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-01-10 00:06:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 00:06:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:06:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 00:06:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 00:06:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 00:06:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-10 00:06:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-10 00:06:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-10 00:06:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-10 00:06:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-10 00:06:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-01-10 00:06:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-01-10 00:06:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-01-10 00:06:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-01-10 00:06:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2025-01-10 00:06:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:06:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2025-01-10 00:06:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2025-01-10 00:06:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#14 [2025-01-10 00:06:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#15 [2025-01-10 00:06:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#16 [2025-01-10 00:06:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#17 [2025-01-10 00:06:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#18 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#14 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#15 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#16 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#17 [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#18 [2025-01-10 00:06:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2025-01-10 00:06:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure getopt [2025-01-10 00:06:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getopt [2025-01-10 00:06:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2025-01-10 00:06:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2025-01-10 00:06:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2025-01-10 00:06:57,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-10 00:06:57,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-10 00:06:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-10 00:06:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-10 00:06:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-10 00:06:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-10 00:06:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-10 00:06:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-10 00:06:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-01-10 00:06:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-01-10 00:06:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2025-01-10 00:06:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2025-01-10 00:06:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-10 00:06:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2025-01-10 00:06:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc_fgets [2025-01-10 00:06:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc_fgets [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-01-10 00:06:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-10 00:06:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-10 00:06:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-10 00:06:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-10 00:06:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-10 00:06:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-10 00:06:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-10 00:06:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-10 00:06:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-10 00:06:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-10 00:06:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-10 00:06:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-10 00:06:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-10 00:06:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-10 00:06:58,066 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:06:58,069 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:07:06,870 INFO L? ?]: Removed 962 outVars from TransFormulas that were not future-live. [2025-01-10 00:07:06,870 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:07:06,918 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:07:06,919 INFO L312 CfgBuilder]: Removed 38 assume(true) statements. [2025-01-10 00:07:06,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:07:06 BoogieIcfgContainer [2025-01-10 00:07:06,923 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:07:06,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:07:06,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:07:06,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:07:06,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:06:55" (1/3) ... [2025-01-10 00:07:06,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cba4e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:07:06, skipping insertion in model container [2025-01-10 00:07:06,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:06:56" (2/3) ... [2025-01-10 00:07:06,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cba4e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:07:06, skipping insertion in model container [2025-01-10 00:07:06,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:07:06" (3/3) ... [2025-01-10 00:07:06,935 INFO L128 eAbstractionObserver]: Analyzing ICFG head-2.i [2025-01-10 00:07:06,950 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:07:06,953 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG head-2.i that has 48 procedures, 1055 locations, 1 initial locations, 41 loop locations, and 359 error locations. [2025-01-10 00:07:07,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:07:07,024 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=None, 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;@66bb54d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:07:07,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 359 error locations. [2025-01-10 00:07:07,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 716 states, 424 states have (on average 1.8820754716981132) internal successors, (798), 678 states have internal predecessors, (798), 29 states have call successors, (29), 12 states have call predecessors, (29), 12 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-01-10 00:07:07,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:07:07,035 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:07:07,036 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:07:07,036 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-01-10 00:07:07,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:07:07,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1090381, now seen corresponding path program 1 times [2025-01-10 00:07:07,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:07:07,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949762866] [2025-01-10 00:07:07,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:07:07,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:07:07,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:07:08,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:07:08,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:07:08,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:07:08,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:07:08,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:07:08,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949762866] [2025-01-10 00:07:08,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949762866] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:07:08,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:07:08,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:07:08,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929357007] [2025-01-10 00:07:08,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:07:08,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:07:08,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:07:08,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:07:08,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:07:08,906 INFO L87 Difference]: Start difference. First operand has 716 states, 424 states have (on average 1.8820754716981132) internal successors, (798), 678 states have internal predecessors, (798), 29 states have call successors, (29), 12 states have call predecessors, (29), 12 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:07:12,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-10 00:07:14,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:07:14,757 INFO L93 Difference]: Finished difference Result 701 states and 837 transitions. [2025-01-10 00:07:14,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:07:14,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-01-10 00:07:14,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:07:14,778 INFO L225 Difference]: With dead ends: 701 [2025-01-10 00:07:14,778 INFO L226 Difference]: Without dead ends: 701 [2025-01-10 00:07:14,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:07:14,786 INFO L435 NwaCegarLoop]: 468 mSDtfsCounter, 295 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:07:14,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 825 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 271 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2025-01-10 00:07:14,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2025-01-10 00:07:14,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 494. [2025-01-10 00:07:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 304 states have (on average 1.7763157894736843) internal successors, (540), 466 states have internal predecessors, (540), 23 states have call successors, (23), 10 states have call predecessors, (23), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-10 00:07:14,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 581 transitions. [2025-01-10 00:07:14,888 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 581 transitions. Word has length 3 [2025-01-10 00:07:14,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:07:14,889 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 581 transitions. [2025-01-10 00:07:14,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:07:14,889 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 581 transitions. [2025-01-10 00:07:14,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:07:14,889 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:07:14,889 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:07:14,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 00:07:14,890 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-01-10 00:07:14,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:07:14,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1090382, now seen corresponding path program 1 times [2025-01-10 00:07:14,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:07:14,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786617458] [2025-01-10 00:07:14,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:07:14,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:07:15,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:07:15,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:07:15,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:07:15,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:07:16,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:07:16,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:07:16,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786617458] [2025-01-10 00:07:16,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786617458] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:07:16,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:07:16,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:07:16,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697095981] [2025-01-10 00:07:16,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:07:16,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:07:16,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:07:16,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:07:16,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:07:16,303 INFO L87 Difference]: Start difference. First operand 494 states and 581 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:07:20,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-10 00:07:21,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:07:21,360 INFO L93 Difference]: Finished difference Result 493 states and 580 transitions. [2025-01-10 00:07:21,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:07:21,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-01-10 00:07:21,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:07:21,363 INFO L225 Difference]: With dead ends: 493 [2025-01-10 00:07:21,363 INFO L226 Difference]: Without dead ends: 493 [2025-01-10 00:07:21,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:07:21,368 INFO L435 NwaCegarLoop]: 573 mSDtfsCounter, 10 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:07:21,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 985 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2025-01-10 00:07:21,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2025-01-10 00:07:21,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2025-01-10 00:07:21,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 304 states have (on average 1.7730263157894737) internal successors, (539), 465 states have internal predecessors, (539), 23 states have call successors, (23), 10 states have call predecessors, (23), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-10 00:07:21,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 580 transitions. [2025-01-10 00:07:21,399 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 580 transitions. Word has length 3 [2025-01-10 00:07:21,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:07:21,400 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 580 transitions. [2025-01-10 00:07:21,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:07:21,400 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 580 transitions. [2025-01-10 00:07:21,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-01-10 00:07:21,400 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:07:21,400 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 00:07:21,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 00:07:21,401 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-01-10 00:07:21,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:07:21,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1875161175, now seen corresponding path program 1 times [2025-01-10 00:07:21,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:07:21,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349075744] [2025-01-10 00:07:21,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:07:21,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:07:22,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 00:07:22,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 00:07:22,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:07:22,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:07:23,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:07:23,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:07:23,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349075744] [2025-01-10 00:07:23,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349075744] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:07:23,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:07:23,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:07:23,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178558858] [2025-01-10 00:07:23,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:07:23,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:07:23,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:07:23,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:07:23,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:07:23,010 INFO L87 Difference]: Start difference. First operand 493 states and 580 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:07:27,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-10 00:07:31,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-10 00:07:32,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:07:32,788 INFO L93 Difference]: Finished difference Result 496 states and 583 transitions. [2025-01-10 00:07:32,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:07:32,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-01-10 00:07:32,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:07:32,791 INFO L225 Difference]: With dead ends: 496 [2025-01-10 00:07:32,791 INFO L226 Difference]: Without dead ends: 496 [2025-01-10 00:07:32,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:07:32,792 INFO L435 NwaCegarLoop]: 571 mSDtfsCounter, 10 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:07:32,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1397 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 328 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2025-01-10 00:07:32,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2025-01-10 00:07:32,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 495. [2025-01-10 00:07:32,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 306 states have (on average 1.7679738562091503) internal successors, (541), 467 states have internal predecessors, (541), 23 states have call successors, (23), 10 states have call predecessors, (23), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-10 00:07:32,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 582 transitions. [2025-01-10 00:07:32,810 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 582 transitions. Word has length 6 [2025-01-10 00:07:32,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:07:32,810 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 582 transitions. [2025-01-10 00:07:32,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:07:32,811 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 582 transitions. [2025-01-10 00:07:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:07:32,811 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:07:32,811 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:07:32,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 00:07:32,811 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-01-10 00:07:32,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:07:32,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1714069366, now seen corresponding path program 1 times [2025-01-10 00:07:32,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:07:32,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837706638] [2025-01-10 00:07:32,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:07:32,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:07:33,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:07:33,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:07:33,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:07:33,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:07:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:07:34,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:07:34,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837706638] [2025-01-10 00:07:34,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837706638] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:07:34,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177456177] [2025-01-10 00:07:34,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:07:34,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:07:34,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:07:34,410 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) [2025-01-10 00:07:34,411 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 [2025-01-10 00:07:35,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:07:35,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:07:35,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:07:35,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:07:35,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 1659 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 00:07:35,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:07:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:07:36,070 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:07:36,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2025-01-10 00:07:36,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:07:36,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177456177] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:07:36,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:07:36,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2025-01-10 00:07:36,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507080759] [2025-01-10 00:07:36,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:07:36,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-10 00:07:36,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:07:36,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-10 00:07:36,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2025-01-10 00:07:36,511 INFO L87 Difference]: Start difference. First operand 495 states and 582 transitions. Second operand has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:07:40,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-10 00:07:44,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-10 00:07:48,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:07:48,468 INFO L93 Difference]: Finished difference Result 499 states and 586 transitions. [2025-01-10 00:07:48,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:07:48,469 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-10 00:07:48,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:07:48,472 INFO L225 Difference]: With dead ends: 499 [2025-01-10 00:07:48,472 INFO L226 Difference]: Without dead ends: 499 [2025-01-10 00:07:48,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2025-01-10 00:07:48,473 INFO L435 NwaCegarLoop]: 571 mSDtfsCounter, 799 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 18 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:07:48,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2089 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 644 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2025-01-10 00:07:48,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2025-01-10 00:07:48,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 499. [2025-01-10 00:07:48,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 311 states have (on average 1.752411575562701) internal successors, (545), 471 states have internal predecessors, (545), 23 states have call successors, (23), 10 states have call predecessors, (23), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-10 00:07:48,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 586 transitions. [2025-01-10 00:07:48,488 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 586 transitions. Word has length 9 [2025-01-10 00:07:48,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:07:48,488 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 586 transitions. [2025-01-10 00:07:48,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 14 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:07:48,489 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 586 transitions. [2025-01-10 00:07:48,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-01-10 00:07:48,489 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:07:48,489 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2025-01-10 00:07:48,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 00:07:48,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:07:48,693 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-01-10 00:07:48,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:07:48,694 INFO L85 PathProgramCache]: Analyzing trace with hash 158835541, now seen corresponding path program 1 times [2025-01-10 00:07:48,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:07:48,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203322096] [2025-01-10 00:07:48,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:07:48,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:07:49,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 00:07:49,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 00:07:49,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:07:49,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:07:49,920 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:07:49,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:07:49,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203322096] [2025-01-10 00:07:49,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203322096] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:07:49,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752108643] [2025-01-10 00:07:49,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:07:49,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:07:49,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:07:49,923 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) [2025-01-10 00:07:49,926 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 [2025-01-10 00:07:50,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 00:07:51,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 00:07:51,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:07:51,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:07:51,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 1705 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 00:07:51,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:07:51,180 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:07:51,180 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:07:51,541 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:07:51,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752108643] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:07:51,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:07:51,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2025-01-10 00:07:51,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137552742] [2025-01-10 00:07:51,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:07:51,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 00:07:51,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:07:51,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 00:07:51,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-01-10 00:07:51,543 INFO L87 Difference]: Start difference. First operand 499 states and 586 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:07:51,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:07:51,754 INFO L93 Difference]: Finished difference Result 514 states and 601 transitions. [2025-01-10 00:07:51,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:07:51,754 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-01-10 00:07:51,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:07:51,757 INFO L225 Difference]: With dead ends: 514 [2025-01-10 00:07:51,757 INFO L226 Difference]: Without dead ends: 514 [2025-01-10 00:07:51,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-01-10 00:07:51,758 INFO L435 NwaCegarLoop]: 576 mSDtfsCounter, 4 mSDsluCounter, 1719 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:07:51,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2295 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 00:07:51,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2025-01-10 00:07:51,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2025-01-10 00:07:51,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 326 states have (on average 1.7177914110429449) internal successors, (560), 486 states have internal predecessors, (560), 23 states have call successors, (23), 10 states have call predecessors, (23), 9 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-10 00:07:51,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 601 transitions. [2025-01-10 00:07:51,772 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 601 transitions. Word has length 15 [2025-01-10 00:07:51,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:07:51,773 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 601 transitions. [2025-01-10 00:07:51,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:07:51,773 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 601 transitions. [2025-01-10 00:07:51,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-01-10 00:07:51,773 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:07:51,774 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1] [2025-01-10 00:07:51,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 00:07:51,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:07:51,975 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-01-10 00:07:51,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:07:51,975 INFO L85 PathProgramCache]: Analyzing trace with hash -2099403800, now seen corresponding path program 2 times [2025-01-10 00:07:51,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:07:51,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887316844] [2025-01-10 00:07:51,975 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:07:51,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:07:52,409 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-01-10 00:07:52,444 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 30 statements. [2025-01-10 00:07:52,444 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 00:07:52,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:07:53,259 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2025-01-10 00:07:53,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:07:53,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887316844] [2025-01-10 00:07:53,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887316844] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:07:53,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:07:53,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:07:53,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619191497] [2025-01-10 00:07:53,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:07:53,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 00:07:53,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:07:53,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 00:07:53,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:07:53,261 INFO L87 Difference]: Start difference. First operand 514 states and 601 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:07:57,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:07:57,451 INFO L93 Difference]: Finished difference Result 881 states and 1053 transitions. [2025-01-10 00:07:57,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:07:57,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2025-01-10 00:07:57,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:07:57,457 INFO L225 Difference]: With dead ends: 881 [2025-01-10 00:07:57,457 INFO L226 Difference]: Without dead ends: 881 [2025-01-10 00:07:57,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:07:57,458 INFO L435 NwaCegarLoop]: 447 mSDtfsCounter, 489 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:07:57,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 1542 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2025-01-10 00:07:57,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2025-01-10 00:07:57,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 560. [2025-01-10 00:07:57,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 369 states have (on average 1.7100271002710028) internal successors, (631), 528 states have internal predecessors, (631), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-10 00:07:57,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 676 transitions. [2025-01-10 00:07:57,476 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 676 transitions. Word has length 30 [2025-01-10 00:07:57,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:07:57,476 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 676 transitions. [2025-01-10 00:07:57,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:07:57,477 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 676 transitions. [2025-01-10 00:07:57,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-01-10 00:07:57,477 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:07:57,477 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1] [2025-01-10 00:07:57,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 00:07:57,478 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-01-10 00:07:57,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:07:57,478 INFO L85 PathProgramCache]: Analyzing trace with hash -2099403799, now seen corresponding path program 1 times [2025-01-10 00:07:57,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:07:57,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619768918] [2025-01-10 00:07:57,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:07:57,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:07:57,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 00:07:58,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 00:07:58,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:07:58,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:07:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:07:59,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:07:59,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619768918] [2025-01-10 00:07:59,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619768918] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:07:59,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220570335] [2025-01-10 00:07:59,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:07:59,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:07:59,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:07:59,094 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) [2025-01-10 00:07:59,097 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 [2025-01-10 00:07:59,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 00:08:00,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 00:08:00,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:08:00,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:08:00,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 00:08:00,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:08:00,357 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:08:00,358 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:08:01,066 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:08:01,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220570335] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:08:01,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:08:01,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-01-10 00:08:01,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628266812] [2025-01-10 00:08:01,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:08:01,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-10 00:08:01,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:08:01,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-10 00:08:01,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-01-10 00:08:01,068 INFO L87 Difference]: Start difference. First operand 560 states and 676 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:08:01,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:08:01,342 INFO L93 Difference]: Finished difference Result 566 states and 682 transitions. [2025-01-10 00:08:01,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 00:08:01,343 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2025-01-10 00:08:01,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:08:01,346 INFO L225 Difference]: With dead ends: 566 [2025-01-10 00:08:01,346 INFO L226 Difference]: Without dead ends: 566 [2025-01-10 00:08:01,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 50 SyntacticMatches, 8 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-01-10 00:08:01,347 INFO L435 NwaCegarLoop]: 575 mSDtfsCounter, 2 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2863 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:08:01,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2863 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 00:08:01,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2025-01-10 00:08:01,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2025-01-10 00:08:01,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 375 states have (on average 1.6986666666666668) internal successors, (637), 534 states have internal predecessors, (637), 25 states have call successors, (25), 12 states have call predecessors, (25), 11 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-10 00:08:01,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 682 transitions. [2025-01-10 00:08:01,363 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 682 transitions. Word has length 30 [2025-01-10 00:08:01,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:08:01,363 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 682 transitions. [2025-01-10 00:08:01,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:08:01,364 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 682 transitions. [2025-01-10 00:08:01,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-01-10 00:08:01,365 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:08:01,365 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1] [2025-01-10 00:08:01,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 00:08:01,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:08:01,566 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-01-10 00:08:01,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:08:01,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1134023881, now seen corresponding path program 2 times [2025-01-10 00:08:01,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:08:01,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119599567] [2025-01-10 00:08:01,567 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:08:01,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:08:02,039 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-01-10 00:08:02,100 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 36 statements. [2025-01-10 00:08:02,101 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 00:08:02,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:08:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-01-10 00:08:03,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:08:03,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119599567] [2025-01-10 00:08:03,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119599567] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:08:03,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:08:03,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:08:03,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349246785] [2025-01-10 00:08:03,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:08:03,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:08:03,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:08:03,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:08:03,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:08:03,179 INFO L87 Difference]: Start difference. First operand 566 states and 682 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:08:07,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-10 00:08:11,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:08:11,777 INFO L93 Difference]: Finished difference Result 1139 states and 1368 transitions. [2025-01-10 00:08:11,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:08:11,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2025-01-10 00:08:11,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:08:11,783 INFO L225 Difference]: With dead ends: 1139 [2025-01-10 00:08:11,783 INFO L226 Difference]: Without dead ends: 1139 [2025-01-10 00:08:11,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:08:11,784 INFO L435 NwaCegarLoop]: 396 mSDtfsCounter, 1704 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 109 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:08:11,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 1075 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 584 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2025-01-10 00:08:11,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2025-01-10 00:08:11,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 931. [2025-01-10 00:08:11,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 706 states have (on average 1.7294617563739376) internal successors, (1221), 870 states have internal predecessors, (1221), 50 states have call successors, (50), 24 states have call predecessors, (50), 21 states have return successors, (45), 38 states have call predecessors, (45), 40 states have call successors, (45) [2025-01-10 00:08:11,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1316 transitions. [2025-01-10 00:08:11,823 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1316 transitions. Word has length 36 [2025-01-10 00:08:11,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:08:11,824 INFO L471 AbstractCegarLoop]: Abstraction has 931 states and 1316 transitions. [2025-01-10 00:08:11,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:08:11,824 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1316 transitions. [2025-01-10 00:08:11,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-01-10 00:08:11,825 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:08:11,825 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:08:11,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 00:08:11,826 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [getoptErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, getoptErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 356 more)] === [2025-01-10 00:08:11,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:08:11,826 INFO L85 PathProgramCache]: Analyzing trace with hash 811456726, now seen corresponding path program 1 times [2025-01-10 00:08:11,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:08:11,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389096404] [2025-01-10 00:08:11,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:08:11,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:08:12,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-10 00:08:12,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-10 00:08:12,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:08:12,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:08:13,067 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-01-10 00:08:13,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:08:13,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389096404] [2025-01-10 00:08:13,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389096404] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:08:13,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:08:13,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:08:13,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581401009] [2025-01-10 00:08:13,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:08:13,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:08:13,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:08:13,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:08:13,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:08:13,071 INFO L87 Difference]: Start difference. First operand 931 states and 1316 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)