./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-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 32bit --witnessprinter.graph.data.programhash 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:22:44,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:22:44,374 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:22:44,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:22:44,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:22:44,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:22:44,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:22:44,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:22:44,404 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:22:44,404 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:22:44,404 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:22:44,405 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:22:44,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:22:44,405 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:22:44,406 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:22:44,406 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:22:44,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:22:44,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:22:44,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:22:44,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:22:44,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:22:44,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:22:44,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:22:44,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:22:44,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:22:44,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:22:44,406 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:22:44,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:22:44,406 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b [2025-02-06 12:22:44,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:22:44,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:22:44,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:22:44,619 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:22:44,619 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:22:44,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2025-02-06 12:22:45,744 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/90f94e86b/4f19d2ac697d41e8a6b4ff0524cd6645/FLAGb645facef [2025-02-06 12:22:46,089 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:22:46,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2025-02-06 12:22:46,104 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/90f94e86b/4f19d2ac697d41e8a6b4ff0524cd6645/FLAGb645facef [2025-02-06 12:22:46,118 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/90f94e86b/4f19d2ac697d41e8a6b4ff0524cd6645 [2025-02-06 12:22:46,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:22:46,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:22:46,123 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:22:46,123 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:22:46,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:22:46,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:22:46" (1/1) ... [2025-02-06 12:22:46,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65184fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:46, skipping insertion in model container [2025-02-06 12:22:46,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:22:46" (1/1) ... [2025-02-06 12:22:46,162 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:22:46,421 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,458 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,462 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,469 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,475 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,511 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,511 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,513 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,513 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,515 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,516 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,516 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,517 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,519 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,520 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,521 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,521 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,522 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,522 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,524 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:46,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:22:46,540 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-06 12:22:46,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7ddf7664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:46, skipping insertion in model container [2025-02-06 12:22:46,541 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:22:46,544 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 12:22:46,546 INFO L158 Benchmark]: Toolchain (without parser) took 423.28ms. Allocated memory is still 167.8MB. Free memory was 126.2MB in the beginning and 106.6MB in the end (delta: 19.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:22:46,546 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 192.9MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:22:46,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.80ms. Allocated memory is still 167.8MB. Free memory was 126.2MB in the beginning and 106.6MB in the end (delta: 19.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:22:46,547 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 192.9MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.80ms. Allocated memory is still 167.8MB. Free memory was 126.2MB in the beginning and 106.6MB in the end (delta: 19.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 727]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/uthash-2.0.2/uthash_OAT_test7-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 32bit --witnessprinter.graph.data.programhash 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:22:48,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:22:48,346 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-06 12:22:48,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:22:48,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:22:48,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:22:48,398 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:22:48,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:22:48,398 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:22:48,398 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:22:48,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:22:48,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:22:48,405 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:22:48,405 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:22:48,405 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:22:48,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:22:48,405 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:22:48,405 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:22:48,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:22:48,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:22:48,406 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:22:48,406 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:22:48,406 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:22:48,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:22:48,406 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:22:48,406 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 12:22:48,406 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 12:22:48,406 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:22:48,406 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:22:48,406 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:22:48,406 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:22:48,406 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:22:48,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:22:48,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:22:48,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:22:48,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:22:48,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:22:48,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:22:48,407 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 12:22:48,407 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 12:22:48,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:22:48,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:22:48,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:22:48,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:22:48,407 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dff9798a0295b679f16f480562390718a9087ab219890b5f7fb9fb3739a540b [2025-02-06 12:22:48,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:22:48,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:22:48,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:22:48,671 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:22:48,671 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:22:48,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2025-02-06 12:22:49,859 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4a5fbabd8/f4ef9b2a35954f85b0ca209f1b03d121/FLAG2e21797b9 [2025-02-06 12:22:50,160 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:22:50,160 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-2.i [2025-02-06 12:22:50,178 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4a5fbabd8/f4ef9b2a35954f85b0ca209f1b03d121/FLAG2e21797b9 [2025-02-06 12:22:50,429 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4a5fbabd8/f4ef9b2a35954f85b0ca209f1b03d121 [2025-02-06 12:22:50,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:22:50,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:22:50,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:22:50,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:22:50,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:22:50,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:22:50" (1/1) ... [2025-02-06 12:22:50,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da4404c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:50, skipping insertion in model container [2025-02-06 12:22:50,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:22:50" (1/1) ... [2025-02-06 12:22:50,498 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:22:50,730 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,757 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,760 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,763 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,767 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,798 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,798 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,802 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,802 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,805 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,806 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,807 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,807 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,814 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,815 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,820 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,821 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,822 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,822 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,829 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:22:50,859 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 12:22:50,874 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:22:50,905 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,922 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,926 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,928 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,934 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,958 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,958 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,959 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,959 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,965 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,965 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,966 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,966 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,972 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,972 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,973 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,974 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,974 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,975 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,976 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:22:50,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:22:50,986 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:22:51,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:22:51,112 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:22:51,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51 WrapperNode [2025-02-06 12:22:51,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:22:51,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:22:51,115 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:22:51,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:22:51,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (1/1) ... [2025-02-06 12:22:51,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (1/1) ... [2025-02-06 12:22:51,190 INFO L138 Inliner]: procedures = 179, calls = 323, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1152 [2025-02-06 12:22:51,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:22:51,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:22:51,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:22:51,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:22:51,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (1/1) ... [2025-02-06 12:22:51,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (1/1) ... [2025-02-06 12:22:51,207 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (1/1) ... [2025-02-06 12:22:51,258 INFO L175 MemorySlicer]: Split 301 memory accesses to 3 slices as follows [2, 265, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2025-02-06 12:22:51,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (1/1) ... [2025-02-06 12:22:51,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (1/1) ... [2025-02-06 12:22:51,296 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (1/1) ... [2025-02-06 12:22:51,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (1/1) ... [2025-02-06 12:22:51,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (1/1) ... [2025-02-06 12:22:51,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (1/1) ... [2025-02-06 12:22:51,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:22:51,315 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:22:51,315 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:22:51,315 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:22:51,316 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (1/1) ... [2025-02-06 12:22:51,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:22:51,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:22:51,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:22:51,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:22:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-06 12:22:51,368 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-06 12:22:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-06 12:22:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-06 12:22:51,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-06 12:22:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 12:22:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 12:22:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-06 12:22:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 12:22:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 12:22:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-06 12:22:51,369 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 12:22:51,369 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 12:22:51,369 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-06 12:22:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 12:22:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:22:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 12:22:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 12:22:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 12:22:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 12:22:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 12:22:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 12:22:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 12:22:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 12:22:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 12:22:51,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 12:22:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-06 12:22:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 12:22:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 12:22:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 12:22:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:22:51,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:22:51,530 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:22:51,531 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:22:53,975 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-06 12:22:54,044 INFO L? ?]: Removed 1292 outVars from TransFormulas that were not future-live. [2025-02-06 12:22:54,044 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:22:54,068 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:22:54,068 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:22:54,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:22:54 BoogieIcfgContainer [2025-02-06 12:22:54,069 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:22:54,070 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:22:54,070 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:22:54,076 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:22:54,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:22:50" (1/3) ... [2025-02-06 12:22:54,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b464212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:22:54, skipping insertion in model container [2025-02-06 12:22:54,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:22:51" (2/3) ... [2025-02-06 12:22:54,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b464212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:22:54, skipping insertion in model container [2025-02-06 12:22:54,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:22:54" (3/3) ... [2025-02-06 12:22:54,081 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test7-2.i [2025-02-06 12:22:54,091 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:22:54,092 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test7-2.i that has 5 procedures, 1275 locations, 1 initial locations, 43 loop locations, and 628 error locations. [2025-02-06 12:22:54,143 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:22:54,150 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;@62f27172, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:22:54,151 INFO L334 AbstractCegarLoop]: Starting to check reachability of 628 error locations. [2025-02-06 12:22:54,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 1265 states, 632 states have (on average 2.2056962025316458) internal successors, (1394), 1258 states have internal predecessors, (1394), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-06 12:22:54,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-06 12:22:54,161 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:22:54,161 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-06 12:22:54,162 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr625REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:22:54,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:22:54,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1430880, now seen corresponding path program 1 times [2025-02-06 12:22:54,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:22:54,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423102676] [2025-02-06 12:22:54,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:22:54,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:22:54,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:22:54,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:22:54,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 12:22:54,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:22:54,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:22:54,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:22:54,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:22:54,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:22:54,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:22:54,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-06 12:22:54,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:22:54,356 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:22:54,357 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:22:54,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423102676] [2025-02-06 12:22:54,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423102676] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:22:54,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:22:54,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:22:54,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778028531] [2025-02-06 12:22:54,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:22:54,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:22:54,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:22:54,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:22:54,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:22:54,376 INFO L87 Difference]: Start difference. First operand has 1265 states, 632 states have (on average 2.2056962025316458) internal successors, (1394), 1258 states have internal predecessors, (1394), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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) [2025-02-06 12:22:55,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:22:55,794 INFO L93 Difference]: Finished difference Result 1437 states and 1513 transitions. [2025-02-06 12:22:55,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:22:55,796 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 [2025-02-06 12:22:55,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:22:55,806 INFO L225 Difference]: With dead ends: 1437 [2025-02-06 12:22:55,806 INFO L226 Difference]: Without dead ends: 1435 [2025-02-06 12:22:55,807 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 [2025-02-06 12:22:55,809 INFO L435 NwaCegarLoop]: 758 mSDtfsCounter, 1163 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-06 12:22:55,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 921 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-06 12:22:55,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2025-02-06 12:22:55,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1246. [2025-02-06 12:22:55,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 632 states have (on average 2.064873417721519) internal successors, (1305), 1240 states have internal predecessors, (1305), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:22:55,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1313 transitions. [2025-02-06 12:22:55,867 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1313 transitions. Word has length 3 [2025-02-06 12:22:55,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:22:55,868 INFO L471 AbstractCegarLoop]: Abstraction has 1246 states and 1313 transitions. [2025-02-06 12:22:55,868 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) [2025-02-06 12:22:55,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1313 transitions. [2025-02-06 12:22:55,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-06 12:22:55,868 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:22:55,868 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-06 12:22:55,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 12:22:56,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:22:56,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr626REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:22:56,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:22:56,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1430881, now seen corresponding path program 1 times [2025-02-06 12:22:56,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:22:56,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1940553379] [2025-02-06 12:22:56,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:22:56,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:22:56,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:22:56,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:22:56,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 12:22:56,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:22:56,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:22:56,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:22:56,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:22:56,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:22:56,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:22:56,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:22:56,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:22:56,185 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:22:56,185 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:22:56,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940553379] [2025-02-06 12:22:56,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940553379] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:22:56,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:22:56,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:22:56,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6109159] [2025-02-06 12:22:56,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:22:56,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:22:56,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:22:56,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:22:56,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:22:56,187 INFO L87 Difference]: Start difference. First operand 1246 states and 1313 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) [2025-02-06 12:22:58,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:22:58,039 INFO L93 Difference]: Finished difference Result 1852 states and 1962 transitions. [2025-02-06 12:22:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:22:58,040 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 [2025-02-06 12:22:58,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:22:58,056 INFO L225 Difference]: With dead ends: 1852 [2025-02-06 12:22:58,057 INFO L226 Difference]: Without dead ends: 1852 [2025-02-06 12:22:58,057 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 [2025-02-06 12:22:58,058 INFO L435 NwaCegarLoop]: 1021 mSDtfsCounter, 646 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-06 12:22:58,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 1716 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-06 12:22:58,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2025-02-06 12:22:58,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1463. [2025-02-06 12:22:58,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 850 states have (on average 2.0423529411764707) internal successors, (1736), 1457 states have internal predecessors, (1736), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:22:58,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1744 transitions. [2025-02-06 12:22:58,107 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1744 transitions. Word has length 3 [2025-02-06 12:22:58,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:22:58,108 INFO L471 AbstractCegarLoop]: Abstraction has 1463 states and 1744 transitions. [2025-02-06 12:22:58,108 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) [2025-02-06 12:22:58,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1744 transitions. [2025-02-06 12:22:58,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 12:22:58,110 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:22:58,110 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:22:58,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 12:22:58,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:22:58,312 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr622REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:22:58,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:22:58,313 INFO L85 PathProgramCache]: Analyzing trace with hash 793589531, now seen corresponding path program 1 times [2025-02-06 12:22:58,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:22:58,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101735847] [2025-02-06 12:22:58,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:22:58,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:22:58,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:22:58,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:22:58,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 12:22:58,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 12:22:58,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 12:22:58,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:22:58,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:22:58,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 12:22:58,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:22:58,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:22:58,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:22:58,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-02-06 12:22:58,476 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 12:22:58,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 12:22:58,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:22:58,486 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:22:58,487 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:22:58,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101735847] [2025-02-06 12:22:58,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101735847] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:22:58,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:22:58,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:22:58,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267673686] [2025-02-06 12:22:58,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:22:58,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:22:58,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:22:58,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:22:58,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:22:58,488 INFO L87 Difference]: Start difference. First operand 1463 states and 1744 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-02-06 12:23:00,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:00,591 INFO L93 Difference]: Finished difference Result 1646 states and 1938 transitions. [2025-02-06 12:23:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:23:00,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2025-02-06 12:23:00,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:00,596 INFO L225 Difference]: With dead ends: 1646 [2025-02-06 12:23:00,596 INFO L226 Difference]: Without dead ends: 1646 [2025-02-06 12:23:00,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:23:00,597 INFO L435 NwaCegarLoop]: 441 mSDtfsCounter, 2612 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2615 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:00,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2615 Valid, 536 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-06 12:23:00,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2025-02-06 12:23:00,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1234. [2025-02-06 12:23:00,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 632 states have (on average 2.0443037974683542) internal successors, (1292), 1228 states have internal predecessors, (1292), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:00,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1300 transitions. [2025-02-06 12:23:00,615 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1300 transitions. Word has length 8 [2025-02-06 12:23:00,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:00,616 INFO L471 AbstractCegarLoop]: Abstraction has 1234 states and 1300 transitions. [2025-02-06 12:23:00,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-02-06 12:23:00,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1300 transitions. [2025-02-06 12:23:00,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-06 12:23:00,616 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:00,616 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:00,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 12:23:00,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:00,817 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:00,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:00,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1168526985, now seen corresponding path program 1 times [2025-02-06 12:23:00,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:00,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [180014397] [2025-02-06 12:23:00,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:00,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:00,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:00,823 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:00,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 12:23:00,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:23:00,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:23:00,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:00,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:00,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:23:00,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:00,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:23:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:00,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:00,964 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:00,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180014397] [2025-02-06 12:23:00,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180014397] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:00,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:00,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:23:00,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095223570] [2025-02-06 12:23:00,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:00,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:23:00,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:00,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:23:00,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:23:00,965 INFO L87 Difference]: Start difference. First operand 1234 states and 1300 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2025-02-06 12:23:02,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:02,572 INFO L93 Difference]: Finished difference Result 1716 states and 1819 transitions. [2025-02-06 12:23:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:23:02,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 9 [2025-02-06 12:23:02,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:02,578 INFO L225 Difference]: With dead ends: 1716 [2025-02-06 12:23:02,581 INFO L226 Difference]: Without dead ends: 1716 [2025-02-06 12:23:02,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:23:02,582 INFO L435 NwaCegarLoop]: 1396 mSDtfsCounter, 703 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:02,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 1932 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-06 12:23:02,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2025-02-06 12:23:02,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1263. [2025-02-06 12:23:02,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 671 states have (on average 2.029806259314456) internal successors, (1362), 1257 states have internal predecessors, (1362), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:02,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1370 transitions. [2025-02-06 12:23:02,605 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1370 transitions. Word has length 9 [2025-02-06 12:23:02,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:02,605 INFO L471 AbstractCegarLoop]: Abstraction has 1263 states and 1370 transitions. [2025-02-06 12:23:02,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2025-02-06 12:23:02,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1370 transitions. [2025-02-06 12:23:02,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-06 12:23:02,606 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:02,606 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:02,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 12:23:02,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:02,811 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr619REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:02,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:02,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1168526986, now seen corresponding path program 1 times [2025-02-06 12:23:02,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:02,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1851120049] [2025-02-06 12:23:02,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:02,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:02,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:02,816 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:02,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 12:23:02,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:23:02,923 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:23:02,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:02,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:02,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:23:02,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:02,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-06 12:23:02,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:02,946 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:02,946 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:02,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851120049] [2025-02-06 12:23:02,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851120049] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:02,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:02,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:23:02,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823629406] [2025-02-06 12:23:02,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:02,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:23:02,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:02,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:23:02,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:23:02,948 INFO L87 Difference]: Start difference. First operand 1263 states and 1370 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2025-02-06 12:23:04,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:04,070 INFO L93 Difference]: Finished difference Result 1606 states and 1739 transitions. [2025-02-06 12:23:04,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:23:04,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 9 [2025-02-06 12:23:04,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:04,077 INFO L225 Difference]: With dead ends: 1606 [2025-02-06 12:23:04,077 INFO L226 Difference]: Without dead ends: 1606 [2025-02-06 12:23:04,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:23:04,078 INFO L435 NwaCegarLoop]: 1171 mSDtfsCounter, 937 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:04,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 1529 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-06 12:23:04,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2025-02-06 12:23:04,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1216. [2025-02-06 12:23:04,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 671 states have (on average 1.9538002980625933) internal successors, (1311), 1210 states have internal predecessors, (1311), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:04,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1319 transitions. [2025-02-06 12:23:04,091 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1319 transitions. Word has length 9 [2025-02-06 12:23:04,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:04,091 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1319 transitions. [2025-02-06 12:23:04,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2025-02-06 12:23:04,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1319 transitions. [2025-02-06 12:23:04,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-06 12:23:04,092 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:04,092 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:04,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 12:23:04,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:04,293 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr104REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:04,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:04,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1270714447, now seen corresponding path program 1 times [2025-02-06 12:23:04,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:04,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41988742] [2025-02-06 12:23:04,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:04,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:04,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:04,296 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:04,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 12:23:04,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 12:23:04,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 12:23:04,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:04,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:04,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:23:04,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:04,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:04,489 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:04,489 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:04,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41988742] [2025-02-06 12:23:04,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41988742] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:04,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:04,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:23:04,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384808893] [2025-02-06 12:23:04,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:04,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:23:04,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:04,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:23:04,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:23:04,489 INFO L87 Difference]: Start difference. First operand 1216 states and 1319 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2025-02-06 12:23:04,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:04,754 INFO L93 Difference]: Finished difference Result 1820 states and 2008 transitions. [2025-02-06 12:23:04,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:23:04,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2025-02-06 12:23:04,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:04,763 INFO L225 Difference]: With dead ends: 1820 [2025-02-06 12:23:04,763 INFO L226 Difference]: Without dead ends: 1820 [2025-02-06 12:23:04,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:23:04,764 INFO L435 NwaCegarLoop]: 1378 mSDtfsCounter, 633 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:04,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 2496 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 12:23:04,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2025-02-06 12:23:04,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1466. [2025-02-06 12:23:04,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 921 states have (on average 1.9294245385450597) internal successors, (1777), 1460 states have internal predecessors, (1777), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:04,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1785 transitions. [2025-02-06 12:23:04,800 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1785 transitions. Word has length 14 [2025-02-06 12:23:04,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:04,800 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 1785 transitions. [2025-02-06 12:23:04,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2025-02-06 12:23:04,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1785 transitions. [2025-02-06 12:23:04,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 12:23:04,800 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:04,801 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:04,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 12:23:05,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:05,001 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:05,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:05,002 INFO L85 PathProgramCache]: Analyzing trace with hash 738736971, now seen corresponding path program 1 times [2025-02-06 12:23:05,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:05,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [806982217] [2025-02-06 12:23:05,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:05,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:05,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:05,004 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:05,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 12:23:05,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:23:05,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:23:05,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:05,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:05,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 12:23:05,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:05,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:05,173 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:05,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806982217] [2025-02-06 12:23:05,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806982217] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:05,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:05,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:23:05,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79951567] [2025-02-06 12:23:05,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:05,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:23:05,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:05,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:23:05,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:23:05,174 INFO L87 Difference]: Start difference. First operand 1466 states and 1785 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:23:05,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:05,663 INFO L93 Difference]: Finished difference Result 1821 states and 2008 transitions. [2025-02-06 12:23:05,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:23:05,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-02-06 12:23:05,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:05,668 INFO L225 Difference]: With dead ends: 1821 [2025-02-06 12:23:05,668 INFO L226 Difference]: Without dead ends: 1821 [2025-02-06 12:23:05,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:23:05,669 INFO L435 NwaCegarLoop]: 1377 mSDtfsCounter, 638 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 3766 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:05,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 3766 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 12:23:05,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2025-02-06 12:23:05,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1468. [2025-02-06 12:23:05,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 923 states have (on average 1.9263271939328277) internal successors, (1778), 1462 states have internal predecessors, (1778), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1786 transitions. [2025-02-06 12:23:05,687 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1786 transitions. Word has length 15 [2025-02-06 12:23:05,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:05,688 INFO L471 AbstractCegarLoop]: Abstraction has 1468 states and 1786 transitions. [2025-02-06 12:23:05,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:23:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1786 transitions. [2025-02-06 12:23:05,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 12:23:05,688 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:05,688 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:05,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 12:23:05,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:05,893 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr295REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:05,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:05,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1145083657, now seen corresponding path program 1 times [2025-02-06 12:23:05,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:05,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768492855] [2025-02-06 12:23:05,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:05,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:05,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:05,896 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:05,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 12:23:05,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:23:05,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:23:05,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:05,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:05,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:23:05,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:06,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-06 12:23:06,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:06,063 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:06,063 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:06,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768492855] [2025-02-06 12:23:06,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768492855] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:06,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:06,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:23:06,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112854202] [2025-02-06 12:23:06,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:06,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:23:06,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:06,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:23:06,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:23:06,064 INFO L87 Difference]: Start difference. First operand 1468 states and 1786 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2025-02-06 12:23:07,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:07,466 INFO L93 Difference]: Finished difference Result 1642 states and 1946 transitions. [2025-02-06 12:23:07,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:23:07,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 [2025-02-06 12:23:07,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:07,470 INFO L225 Difference]: With dead ends: 1642 [2025-02-06 12:23:07,470 INFO L226 Difference]: Without dead ends: 1642 [2025-02-06 12:23:07,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:23:07,472 INFO L435 NwaCegarLoop]: 713 mSDtfsCounter, 1158 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:07,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1477 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1221 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-06 12:23:07,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2025-02-06 12:23:07,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1445. [2025-02-06 12:23:07,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 923 states have (on average 1.876489707475623) internal successors, (1732), 1439 states have internal predecessors, (1732), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:07,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1740 transitions. [2025-02-06 12:23:07,511 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1740 transitions. Word has length 15 [2025-02-06 12:23:07,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:07,511 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 1740 transitions. [2025-02-06 12:23:07,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2025-02-06 12:23:07,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1740 transitions. [2025-02-06 12:23:07,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 12:23:07,511 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:07,511 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:07,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 12:23:07,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:07,712 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr296REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:07,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:07,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1145083658, now seen corresponding path program 1 times [2025-02-06 12:23:07,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:07,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660694483] [2025-02-06 12:23:07,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:07,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:07,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:07,719 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:07,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 12:23:07,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:23:07,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:23:07,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:07,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:07,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 12:23:07,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:07,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:23:07,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:07,954 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:07,954 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:07,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660694483] [2025-02-06 12:23:07,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660694483] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:07,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:07,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:23:07,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135179079] [2025-02-06 12:23:07,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:07,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:23:07,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:07,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:23:07,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:23:07,954 INFO L87 Difference]: Start difference. First operand 1445 states and 1740 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2025-02-06 12:23:09,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:09,967 INFO L93 Difference]: Finished difference Result 2144 states and 2583 transitions. [2025-02-06 12:23:09,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:23:09,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 [2025-02-06 12:23:09,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:09,971 INFO L225 Difference]: With dead ends: 2144 [2025-02-06 12:23:09,971 INFO L226 Difference]: Without dead ends: 2144 [2025-02-06 12:23:09,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:23:09,973 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 622 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:09,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 2209 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-06 12:23:09,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2025-02-06 12:23:09,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 1767. [2025-02-06 12:23:10,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1245 states have (on average 1.872289156626506) internal successors, (2331), 1761 states have internal predecessors, (2331), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:10,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2339 transitions. [2025-02-06 12:23:10,014 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2339 transitions. Word has length 15 [2025-02-06 12:23:10,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:10,015 INFO L471 AbstractCegarLoop]: Abstraction has 1767 states and 2339 transitions. [2025-02-06 12:23:10,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2025-02-06 12:23:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2339 transitions. [2025-02-06 12:23:10,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-06 12:23:10,017 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:10,017 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:10,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-06 12:23:10,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:10,218 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr272REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:10,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:10,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1137811015, now seen corresponding path program 1 times [2025-02-06 12:23:10,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:10,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1833435913] [2025-02-06 12:23:10,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:10,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:10,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:10,222 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:10,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 12:23:10,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 12:23:10,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 12:23:10,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:10,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:10,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:23:10,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:10,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:10,344 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:10,344 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:10,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833435913] [2025-02-06 12:23:10,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833435913] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:10,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:10,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:23:10,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914329833] [2025-02-06 12:23:10,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:10,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:23:10,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:10,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:23:10,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:23:10,345 INFO L87 Difference]: Start difference. First operand 1767 states and 2339 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2025-02-06 12:23:10,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:10,419 INFO L93 Difference]: Finished difference Result 1695 states and 2216 transitions. [2025-02-06 12:23:10,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:23:10,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2025-02-06 12:23:10,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:10,427 INFO L225 Difference]: With dead ends: 1695 [2025-02-06 12:23:10,427 INFO L226 Difference]: Without dead ends: 1695 [2025-02-06 12:23:10,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:23:10,427 INFO L435 NwaCegarLoop]: 1132 mSDtfsCounter, 45 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3373 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:10,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3373 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 12:23:10,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2025-02-06 12:23:10,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1695. [2025-02-06 12:23:10,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1192 states have (on average 1.8523489932885906) internal successors, (2208), 1689 states have internal predecessors, (2208), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:10,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2216 transitions. [2025-02-06 12:23:10,447 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2216 transitions. Word has length 16 [2025-02-06 12:23:10,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:10,448 INFO L471 AbstractCegarLoop]: Abstraction has 1695 states and 2216 transitions. [2025-02-06 12:23:10,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2025-02-06 12:23:10,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2216 transitions. [2025-02-06 12:23:10,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-06 12:23:10,448 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:10,448 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:10,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-06 12:23:10,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:10,649 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:10,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:10,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1385839594, now seen corresponding path program 1 times [2025-02-06 12:23:10,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:10,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [522729489] [2025-02-06 12:23:10,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:10,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:10,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:10,655 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:10,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 12:23:10,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 12:23:10,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 12:23:10,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:10,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:10,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:23:10,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:10,768 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:23:10,768 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:23:10,769 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:23:10,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 12:23:10,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 12:23:10,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 12:23:10,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:10,837 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:10,837 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:10,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522729489] [2025-02-06 12:23:10,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522729489] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:10,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:10,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:23:10,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560902379] [2025-02-06 12:23:10,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:10,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:23:10,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:10,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:23:10,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:23:10,839 INFO L87 Difference]: Start difference. First operand 1695 states and 2216 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2025-02-06 12:23:11,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:11,055 INFO L93 Difference]: Finished difference Result 2420 states and 2778 transitions. [2025-02-06 12:23:11,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:23:11,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2025-02-06 12:23:11,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:11,061 INFO L225 Difference]: With dead ends: 2420 [2025-02-06 12:23:11,062 INFO L226 Difference]: Without dead ends: 2420 [2025-02-06 12:23:11,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:23:11,062 INFO L435 NwaCegarLoop]: 1350 mSDtfsCounter, 1084 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 3824 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:11,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 3824 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 12:23:11,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2025-02-06 12:23:11,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 1373. [2025-02-06 12:23:11,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 870 states have (on average 1.8666666666666667) internal successors, (1624), 1367 states have internal predecessors, (1624), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:11,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1632 transitions. [2025-02-06 12:23:11,079 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1632 transitions. Word has length 16 [2025-02-06 12:23:11,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:11,080 INFO L471 AbstractCegarLoop]: Abstraction has 1373 states and 1632 transitions. [2025-02-06 12:23:11,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2025-02-06 12:23:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1632 transitions. [2025-02-06 12:23:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-06 12:23:11,081 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:11,081 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:11,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 12:23:11,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:11,282 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr611REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:11,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:11,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1841308631, now seen corresponding path program 1 times [2025-02-06 12:23:11,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:11,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433647045] [2025-02-06 12:23:11,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:11,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:11,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:11,285 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:11,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 12:23:11,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:23:11,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:23:11,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:11,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:11,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:23:11,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:11,459 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:11,459 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:11,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433647045] [2025-02-06 12:23:11,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433647045] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:11,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:11,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:23:11,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409764306] [2025-02-06 12:23:11,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:11,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:23:11,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:11,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:23:11,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:23:11,460 INFO L87 Difference]: Start difference. First operand 1373 states and 1632 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2025-02-06 12:23:13,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:13,006 INFO L93 Difference]: Finished difference Result 1755 states and 2108 transitions. [2025-02-06 12:23:13,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:23:13,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2025-02-06 12:23:13,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:13,009 INFO L225 Difference]: With dead ends: 1755 [2025-02-06 12:23:13,009 INFO L226 Difference]: Without dead ends: 1755 [2025-02-06 12:23:13,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:23:13,010 INFO L435 NwaCegarLoop]: 698 mSDtfsCounter, 903 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:13,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 1534 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-06 12:23:13,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2025-02-06 12:23:13,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1350. [2025-02-06 12:23:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 870 states have (on average 1.813793103448276) internal successors, (1578), 1344 states have internal predecessors, (1578), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:13,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1586 transitions. [2025-02-06 12:23:13,021 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1586 transitions. Word has length 19 [2025-02-06 12:23:13,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:13,021 INFO L471 AbstractCegarLoop]: Abstraction has 1350 states and 1586 transitions. [2025-02-06 12:23:13,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2025-02-06 12:23:13,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1586 transitions. [2025-02-06 12:23:13,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-06 12:23:13,022 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:13,022 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:13,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-06 12:23:13,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:13,222 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr612REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:13,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:13,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1841308630, now seen corresponding path program 1 times [2025-02-06 12:23:13,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:13,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [467458769] [2025-02-06 12:23:13,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:13,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:13,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:13,225 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:13,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 12:23:13,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:23:13,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:23:13,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:13,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:13,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 12:23:13,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:13,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:23:13,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:13,406 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:13,406 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:13,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467458769] [2025-02-06 12:23:13,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467458769] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:13,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:13,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:23:13,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18763080] [2025-02-06 12:23:13,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:13,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:23:13,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:13,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:23:13,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:23:13,407 INFO L87 Difference]: Start difference. First operand 1350 states and 1586 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2025-02-06 12:23:15,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:15,377 INFO L93 Difference]: Finished difference Result 1999 states and 2353 transitions. [2025-02-06 12:23:15,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:23:15,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2025-02-06 12:23:15,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:15,382 INFO L225 Difference]: With dead ends: 1999 [2025-02-06 12:23:15,382 INFO L226 Difference]: Without dead ends: 1999 [2025-02-06 12:23:15,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:23:15,382 INFO L435 NwaCegarLoop]: 1304 mSDtfsCounter, 740 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 2636 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:15,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 2636 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-06 12:23:15,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2025-02-06 12:23:15,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1464. [2025-02-06 12:23:15,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 984 states have (on average 1.7439024390243902) internal successors, (1716), 1458 states have internal predecessors, (1716), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:15,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1724 transitions. [2025-02-06 12:23:15,417 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1724 transitions. Word has length 19 [2025-02-06 12:23:15,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:15,417 INFO L471 AbstractCegarLoop]: Abstraction has 1464 states and 1724 transitions. [2025-02-06 12:23:15,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2025-02-06 12:23:15,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1724 transitions. [2025-02-06 12:23:15,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-02-06 12:23:15,417 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:15,417 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:15,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-06 12:23:15,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:15,623 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr612REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:15,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:15,623 INFO L85 PathProgramCache]: Analyzing trace with hash 27660153, now seen corresponding path program 1 times [2025-02-06 12:23:15,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:15,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301980572] [2025-02-06 12:23:15,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:15,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:15,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:15,633 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:15,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-06 12:23:15,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-02-06 12:23:15,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-06 12:23:15,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:15,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:15,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 12:23:15,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:15,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:23:15,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:15,960 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:23:16,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:16,321 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:16,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301980572] [2025-02-06 12:23:16,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301980572] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:23:16,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 12:23:16,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-02-06 12:23:16,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22153804] [2025-02-06 12:23:16,321 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 12:23:16,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:23:16,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:16,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:23:16,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:23:16,321 INFO L87 Difference]: Start difference. First operand 1464 states and 1724 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 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) [2025-02-06 12:23:22,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:22,004 INFO L93 Difference]: Finished difference Result 2355 states and 2843 transitions. [2025-02-06 12:23:22,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:23:22,005 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 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 38 [2025-02-06 12:23:22,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:22,009 INFO L225 Difference]: With dead ends: 2355 [2025-02-06 12:23:22,009 INFO L226 Difference]: Without dead ends: 2355 [2025-02-06 12:23:22,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2025-02-06 12:23:22,014 INFO L435 NwaCegarLoop]: 1331 mSDtfsCounter, 2289 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2290 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 2335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:22,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2290 Valid, 3599 Invalid, 2335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2025-02-06 12:23:22,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2025-02-06 12:23:22,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 1628. [2025-02-06 12:23:22,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1148 states have (on average 1.6968641114982579) internal successors, (1948), 1622 states have internal predecessors, (1948), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 1956 transitions. [2025-02-06 12:23:22,030 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 1956 transitions. Word has length 38 [2025-02-06 12:23:22,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:22,030 INFO L471 AbstractCegarLoop]: Abstraction has 1628 states and 1956 transitions. [2025-02-06 12:23:22,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 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) [2025-02-06 12:23:22,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 1956 transitions. [2025-02-06 12:23:22,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-02-06 12:23:22,032 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:22,032 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:22,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-06 12:23:22,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:22,233 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr530REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:22,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:22,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1459566772, now seen corresponding path program 1 times [2025-02-06 12:23:22,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:22,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722102691] [2025-02-06 12:23:22,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:22,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:22,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:22,237 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:22,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-06 12:23:22,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-06 12:23:22,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-06 12:23:22,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:22,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:22,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:23:22,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:22,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:22,437 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:22,437 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:22,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722102691] [2025-02-06 12:23:22,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722102691] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:22,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:22,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:23:22,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860894685] [2025-02-06 12:23:22,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:22,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:23:22,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:22,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:23:22,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:23:22,438 INFO L87 Difference]: Start difference. First operand 1628 states and 1956 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2025-02-06 12:23:22,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:22,494 INFO L93 Difference]: Finished difference Result 1317 states and 1520 transitions. [2025-02-06 12:23:22,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:23:22,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2025-02-06 12:23:22,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:22,497 INFO L225 Difference]: With dead ends: 1317 [2025-02-06 12:23:22,497 INFO L226 Difference]: Without dead ends: 1317 [2025-02-06 12:23:22,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:23:22,497 INFO L435 NwaCegarLoop]: 1069 mSDtfsCounter, 56 mSDsluCounter, 2065 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:22,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3134 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 12:23:22,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2025-02-06 12:23:22,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1315. [2025-02-06 12:23:22,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 858 states have (on average 1.75990675990676) internal successors, (1510), 1309 states have internal predecessors, (1510), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:22,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1518 transitions. [2025-02-06 12:23:22,507 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1518 transitions. Word has length 54 [2025-02-06 12:23:22,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:22,507 INFO L471 AbstractCegarLoop]: Abstraction has 1315 states and 1518 transitions. [2025-02-06 12:23:22,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2025-02-06 12:23:22,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1518 transitions. [2025-02-06 12:23:22,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-02-06 12:23:22,508 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:22,508 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:22,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-02-06 12:23:22,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:22,708 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr530REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:22,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:22,709 INFO L85 PathProgramCache]: Analyzing trace with hash 405134588, now seen corresponding path program 1 times [2025-02-06 12:23:22,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:22,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [373929104] [2025-02-06 12:23:22,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:22,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:22,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:22,711 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:22,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-06 12:23:22,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-02-06 12:23:22,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-02-06 12:23:22,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:22,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:22,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 12:23:22,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:22,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:23:23,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:23:23,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-02-06 12:23:23,251 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 12:23:23,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 12:23:23,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:23,255 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:23,255 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:23,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373929104] [2025-02-06 12:23:23,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373929104] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:23,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:23,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:23:23,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774734990] [2025-02-06 12:23:23,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:23,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:23:23,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:23,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:23:23,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:23:23,256 INFO L87 Difference]: Start difference. First operand 1315 states and 1518 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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) [2025-02-06 12:23:25,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:25,439 INFO L93 Difference]: Finished difference Result 1674 states and 1994 transitions. [2025-02-06 12:23:25,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:23:25,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2025-02-06 12:23:25,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:25,446 INFO L225 Difference]: With dead ends: 1674 [2025-02-06 12:23:25,446 INFO L226 Difference]: Without dead ends: 1674 [2025-02-06 12:23:25,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:23:25,447 INFO L435 NwaCegarLoop]: 531 mSDtfsCounter, 1141 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:25,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 1214 Invalid, 1709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-06 12:23:25,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2025-02-06 12:23:25,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1238. [2025-02-06 12:23:25,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 819 states have (on average 1.7045177045177045) internal successors, (1396), 1232 states have internal predecessors, (1396), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:25,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1404 transitions. [2025-02-06 12:23:25,457 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1404 transitions. Word has length 62 [2025-02-06 12:23:25,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:25,458 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1404 transitions. [2025-02-06 12:23:25,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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) [2025-02-06 12:23:25,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1404 transitions. [2025-02-06 12:23:25,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-02-06 12:23:25,459 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:25,459 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:25,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-06 12:23:25,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:25,660 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:25,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:25,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1908657516, now seen corresponding path program 1 times [2025-02-06 12:23:25,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:25,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [305114941] [2025-02-06 12:23:25,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:25,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:25,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:25,666 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:25,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-06 12:23:25,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-02-06 12:23:25,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-02-06 12:23:25,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:25,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:25,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 12:23:25,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:25,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-06 12:23:25,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-06 12:23:25,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 11 [2025-02-06 12:23:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:25,902 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:25,902 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:25,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305114941] [2025-02-06 12:23:25,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305114941] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:25,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:25,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:23:25,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730581140] [2025-02-06 12:23:25,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:25,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:23:25,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:25,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:23:25,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:23:25,903 INFO L87 Difference]: Start difference. First operand 1238 states and 1404 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-02-06 12:23:27,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:27,380 INFO L93 Difference]: Finished difference Result 1237 states and 1403 transitions. [2025-02-06 12:23:27,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:23:27,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2025-02-06 12:23:27,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:27,383 INFO L225 Difference]: With dead ends: 1237 [2025-02-06 12:23:27,383 INFO L226 Difference]: Without dead ends: 1237 [2025-02-06 12:23:27,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:23:27,383 INFO L435 NwaCegarLoop]: 1041 mSDtfsCounter, 2 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2701 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:27,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2701 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-06 12:23:27,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2025-02-06 12:23:27,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1237. [2025-02-06 12:23:27,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1237 states, 819 states have (on average 1.7032967032967032) internal successors, (1395), 1231 states have internal predecessors, (1395), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:27,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 1403 transitions. [2025-02-06 12:23:27,397 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 1403 transitions. Word has length 67 [2025-02-06 12:23:27,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:27,397 INFO L471 AbstractCegarLoop]: Abstraction has 1237 states and 1403 transitions. [2025-02-06 12:23:27,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-02-06 12:23:27,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 1403 transitions. [2025-02-06 12:23:27,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-02-06 12:23:27,398 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:27,399 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:27,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-02-06 12:23:27,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:27,599 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr524REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:27,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:27,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1908657515, now seen corresponding path program 1 times [2025-02-06 12:23:27,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:27,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827639726] [2025-02-06 12:23:27,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:27,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:27,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:27,603 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:27,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-06 12:23:27,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-02-06 12:23:27,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-02-06 12:23:27,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:27,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:27,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 12:23:27,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:27,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:23:27,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-02-06 12:23:27,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-06 12:23:27,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 21 treesize of output 9 [2025-02-06 12:23:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:27,864 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:27,864 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:27,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827639726] [2025-02-06 12:23:27,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827639726] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:27,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:27,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:23:27,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076718722] [2025-02-06 12:23:27,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:27,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:23:27,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:27,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:23:27,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:23:27,865 INFO L87 Difference]: Start difference. First operand 1237 states and 1403 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-02-06 12:23:29,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:29,913 INFO L93 Difference]: Finished difference Result 1236 states and 1402 transitions. [2025-02-06 12:23:29,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:23:29,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2025-02-06 12:23:29,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:29,916 INFO L225 Difference]: With dead ends: 1236 [2025-02-06 12:23:29,916 INFO L226 Difference]: Without dead ends: 1236 [2025-02-06 12:23:29,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:23:29,916 INFO L435 NwaCegarLoop]: 1041 mSDtfsCounter, 1 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:29,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2742 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-06 12:23:29,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2025-02-06 12:23:29,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1236. [2025-02-06 12:23:29,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 818 states have (on average 1.7041564792176038) internal successors, (1394), 1230 states have internal predecessors, (1394), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 12:23:29,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1402 transitions. [2025-02-06 12:23:29,932 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1402 transitions. Word has length 67 [2025-02-06 12:23:29,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:29,932 INFO L471 AbstractCegarLoop]: Abstraction has 1236 states and 1402 transitions. [2025-02-06 12:23:29,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-02-06 12:23:29,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1402 transitions. [2025-02-06 12:23:29,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-06 12:23:29,933 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:29,933 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:29,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-02-06 12:23:30,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:30,134 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr519REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:30,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:30,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1880593743, now seen corresponding path program 1 times [2025-02-06 12:23:30,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:30,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803827448] [2025-02-06 12:23:30,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:30,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:30,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:30,140 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:30,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-06 12:23:30,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-06 12:23:30,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-06 12:23:30,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:30,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:30,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 12:23:30,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:30,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-06 12:23:30,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 11 [2025-02-06 12:23:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:30,430 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:30,430 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:30,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803827448] [2025-02-06 12:23:30,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803827448] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:30,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:30,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:23:30,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440127947] [2025-02-06 12:23:30,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:30,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:23:30,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:30,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:23:30,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:23:30,433 INFO L87 Difference]: Start difference. First operand 1236 states and 1402 transitions. Second operand has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 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) [2025-02-06 12:23:32,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:32,191 INFO L93 Difference]: Finished difference Result 1248 states and 1417 transitions. [2025-02-06 12:23:32,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:23:32,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 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) Word has length 75 [2025-02-06 12:23:32,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:32,196 INFO L225 Difference]: With dead ends: 1248 [2025-02-06 12:23:32,196 INFO L226 Difference]: Without dead ends: 1248 [2025-02-06 12:23:32,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-06 12:23:32,196 INFO L435 NwaCegarLoop]: 1031 mSDtfsCounter, 8 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3790 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:32,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3790 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-06 12:23:32,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2025-02-06 12:23:32,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1242. [2025-02-06 12:23:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 823 states have (on average 1.7023086269744836) internal successors, (1401), 1235 states have internal predecessors, (1401), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-06 12:23:32,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1412 transitions. [2025-02-06 12:23:32,229 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1412 transitions. Word has length 75 [2025-02-06 12:23:32,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:32,229 INFO L471 AbstractCegarLoop]: Abstraction has 1242 states and 1412 transitions. [2025-02-06 12:23:32,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 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) [2025-02-06 12:23:32,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1412 transitions. [2025-02-06 12:23:32,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-06 12:23:32,230 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:32,230 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:32,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-02-06 12:23:32,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:32,431 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr520REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:32,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:32,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1880593742, now seen corresponding path program 1 times [2025-02-06 12:23:32,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:32,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681524434] [2025-02-06 12:23:32,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:32,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:32,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:32,434 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:32,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-06 12:23:32,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-06 12:23:32,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-06 12:23:32,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:32,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:32,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:23:32,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:32,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:32,650 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:23:32,650 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:32,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681524434] [2025-02-06 12:23:32,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681524434] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:23:32,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:23:32,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:23:32,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262915064] [2025-02-06 12:23:32,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:23:32,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:23:32,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:32,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:23:32,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:23:32,652 INFO L87 Difference]: Start difference. First operand 1242 states and 1412 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2025-02-06 12:23:32,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:32,679 INFO L93 Difference]: Finished difference Result 1239 states and 1406 transitions. [2025-02-06 12:23:32,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:23:32,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) Word has length 75 [2025-02-06 12:23:32,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:32,682 INFO L225 Difference]: With dead ends: 1239 [2025-02-06 12:23:32,682 INFO L226 Difference]: Without dead ends: 1239 [2025-02-06 12:23:32,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:23:32,682 INFO L435 NwaCegarLoop]: 1041 mSDtfsCounter, 0 mSDsluCounter, 2077 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:32,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3118 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 12:23:32,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2025-02-06 12:23:32,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1239. [2025-02-06 12:23:32,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 820 states have (on average 1.7036585365853658) internal successors, (1397), 1233 states have internal predecessors, (1397), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 12:23:32,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1406 transitions. [2025-02-06 12:23:32,694 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1406 transitions. Word has length 75 [2025-02-06 12:23:32,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:32,694 INFO L471 AbstractCegarLoop]: Abstraction has 1239 states and 1406 transitions. [2025-02-06 12:23:32,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2025-02-06 12:23:32,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1406 transitions. [2025-02-06 12:23:32,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-06 12:23:32,695 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:32,695 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:32,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-02-06 12:23:32,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:32,896 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr519REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:32,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:32,896 INFO L85 PathProgramCache]: Analyzing trace with hash -439321274, now seen corresponding path program 1 times [2025-02-06 12:23:32,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:32,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586934903] [2025-02-06 12:23:32,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:23:32,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:32,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:32,899 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:32,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-02-06 12:23:33,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-06 12:23:33,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-06 12:23:33,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:23:33,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:23:33,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:23:33,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:23:33,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:33,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:23:33,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:23:33,187 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:23:33,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586934903] [2025-02-06 12:23:33,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586934903] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:23:33,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 12:23:33,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-06 12:23:33,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63587347] [2025-02-06 12:23:33,187 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 12:23:33,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:23:33,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:23:33,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:23:33,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:23:33,189 INFO L87 Difference]: Start difference. First operand 1239 states and 1406 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 12:23:33,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:23:33,279 INFO L93 Difference]: Finished difference Result 1251 states and 1423 transitions. [2025-02-06 12:23:33,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:23:33,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2025-02-06 12:23:33,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:23:33,281 INFO L225 Difference]: With dead ends: 1251 [2025-02-06 12:23:33,281 INFO L226 Difference]: Without dead ends: 1251 [2025-02-06 12:23:33,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-06 12:23:33,282 INFO L435 NwaCegarLoop]: 1041 mSDtfsCounter, 8 mSDsluCounter, 2079 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:23:33,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3120 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 12:23:33,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2025-02-06 12:23:33,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1249. [2025-02-06 12:23:33,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 829 states have (on average 1.7032569360675514) internal successors, (1412), 1242 states have internal predecessors, (1412), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 12:23:33,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1421 transitions. [2025-02-06 12:23:33,294 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1421 transitions. Word has length 76 [2025-02-06 12:23:33,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:23:33,295 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1421 transitions. [2025-02-06 12:23:33,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 12:23:33,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1421 transitions. [2025-02-06 12:23:33,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-02-06 12:23:33,295 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:23:33,295 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:23:33,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-02-06 12:23:33,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:33,496 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr519REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:23:33,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:23:33,496 INFO L85 PathProgramCache]: Analyzing trace with hash -761075727, now seen corresponding path program 2 times [2025-02-06 12:23:33,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:23:33,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952599915] [2025-02-06 12:23:33,497 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:23:33,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:23:33,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:23:33,499 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:23:33,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-02-06 12:23:33,647 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-02-06 12:24:01,449 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 12:24:01,450 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 12:24:01,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:24:01,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-02-06 12:24:01,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:24:01,539 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 12:24:01,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 12:24:01,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-06 12:24:01,713 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-06 12:24:01,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2025-02-06 12:24:01,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 33 treesize of output 15 [2025-02-06 12:24:01,783 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-06 12:24:01,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:24:01,890 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2025-02-06 12:24:01,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2025-02-06 12:24:01,987 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:24:01,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952599915] [2025-02-06 12:24:01,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952599915] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:24:01,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1043194338] [2025-02-06 12:24:01,988 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:24:01,988 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 12:24:01,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 12:24:01,990 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-06 12:24:01,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2025-02-06 12:24:02,212 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-02-06 12:24:02,998 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 12:24:02,998 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 12:24:02,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:24:03,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 12:24:03,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:24:03,147 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:24:03,147 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:24:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:24:03,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1043194338] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:24:03,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:24:03,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2025-02-06 12:24:03,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172005616] [2025-02-06 12:24:03,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:24:03,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-06 12:24:03,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:24:03,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-06 12:24:03,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=552, Unknown=7, NotChecked=0, Total=650 [2025-02-06 12:24:03,325 INFO L87 Difference]: Start difference. First operand 1249 states and 1421 transitions. Second operand has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 12:24:10,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:24:10,519 INFO L93 Difference]: Finished difference Result 1662 states and 1958 transitions. [2025-02-06 12:24:10,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-02-06 12:24:10,522 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 79 [2025-02-06 12:24:10,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:24:10,525 INFO L225 Difference]: With dead ends: 1662 [2025-02-06 12:24:10,525 INFO L226 Difference]: Without dead ends: 1658 [2025-02-06 12:24:10,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=416, Invalid=2331, Unknown=9, NotChecked=0, Total=2756 [2025-02-06 12:24:10,526 INFO L435 NwaCegarLoop]: 678 mSDtfsCounter, 812 mSDsluCounter, 9957 mSDsCounter, 0 mSdLazyCounter, 7025 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 10635 SdHoareTripleChecker+Invalid, 7056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 7025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2025-02-06 12:24:10,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 10635 Invalid, 7056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 7025 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2025-02-06 12:24:10,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2025-02-06 12:24:10,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1257. [2025-02-06 12:24:10,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 838 states have (on average 1.698090692124105) internal successors, (1423), 1250 states have internal predecessors, (1423), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 12:24:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1432 transitions. [2025-02-06 12:24:10,540 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1432 transitions. Word has length 79 [2025-02-06 12:24:10,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:24:10,540 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1432 transitions. [2025-02-06 12:24:10,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 12:24:10,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1432 transitions. [2025-02-06 12:24:10,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-02-06 12:24:10,541 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:24:10,541 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:24:10,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-02-06 12:24:10,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2025-02-06 12:24:10,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2025-02-06 12:24:10,942 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr520REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:24:10,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:24:10,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1051883474, now seen corresponding path program 1 times [2025-02-06 12:24:10,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:24:10,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51004780] [2025-02-06 12:24:10,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:24:10,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:24:10,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:24:10,945 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:24:10,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-02-06 12:24:11,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-06 12:24:11,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-06 12:24:11,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:24:11,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:24:11,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 12:24:11,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:24:11,315 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:24:11,315 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:24:11,704 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:24:11,705 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:24:11,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51004780] [2025-02-06 12:24:11,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51004780] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:24:11,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 12:24:11,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2025-02-06 12:24:11,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363918002] [2025-02-06 12:24:11,705 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 12:24:11,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-02-06 12:24:11,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:24:11,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-02-06 12:24:11,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2025-02-06 12:24:11,706 INFO L87 Difference]: Start difference. First operand 1257 states and 1432 transitions. Second operand has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 12:24:12,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:24:12,943 INFO L93 Difference]: Finished difference Result 1281 states and 1471 transitions. [2025-02-06 12:24:12,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-02-06 12:24:12,944 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2025-02-06 12:24:12,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:24:12,946 INFO L225 Difference]: With dead ends: 1281 [2025-02-06 12:24:12,946 INFO L226 Difference]: Without dead ends: 1275 [2025-02-06 12:24:12,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2025-02-06 12:24:12,947 INFO L435 NwaCegarLoop]: 1041 mSDtfsCounter, 26 mSDsluCounter, 11420 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 12461 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 12:24:12,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 12461 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 12:24:12,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2025-02-06 12:24:12,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1275. [2025-02-06 12:24:12,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 856 states have (on average 1.689252336448598) internal successors, (1446), 1268 states have internal predecessors, (1446), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 12:24:12,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1455 transitions. [2025-02-06 12:24:12,957 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1455 transitions. Word has length 85 [2025-02-06 12:24:12,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:24:12,957 INFO L471 AbstractCegarLoop]: Abstraction has 1275 states and 1455 transitions. [2025-02-06 12:24:12,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 12:24:12,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1455 transitions. [2025-02-06 12:24:12,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-06 12:24:12,958 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:24:12,958 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:24:12,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-02-06 12:24:13,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:24:13,158 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr520REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 625 more)] === [2025-02-06 12:24:13,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:24:13,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1192927342, now seen corresponding path program 2 times [2025-02-06 12:24:13,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:24:13,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899183065] [2025-02-06 12:24:13,159 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:24:13,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:24:13,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:24:13,161 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:24:13,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-02-06 12:24:13,337 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 97 statements into 2 equivalence classes. [2025-02-06 12:24:27,850 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 97 of 97 statements. [2025-02-06 12:24:27,850 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 12:24:27,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:24:27,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 64 conjuncts are in the unsatisfiable core [2025-02-06 12:24:27,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:24:27,955 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 12:24:27,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 12:24:27,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:24:27,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-06 12:24:27,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-02-06 12:24:28,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 22 treesize of output 10 [2025-02-06 12:24:28,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2025-02-06 12:24:28,481 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-06 12:24:28,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2025-02-06 12:24:28,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2025-02-06 12:24:28,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 31 treesize of output 13 [2025-02-06 12:24:28,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2025-02-06 12:24:28,574 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2025-02-06 12:24:28,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:24:28,885 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_1919 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1920 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_1919) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_1920) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1919 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_1919) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd (_ bv20 32) .cse1)))))) is different from false [2025-02-06 12:24:28,890 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:24:28,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899183065] [2025-02-06 12:24:28,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899183065] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:24:28,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [603172881] [2025-02-06 12:24:28,890 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:24:28,890 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 12:24:28,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 12:24:28,892 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-06 12:24:28,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2025-02-06 12:24:29,161 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 97 statements into 2 equivalence classes.