./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.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 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:02:55,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:02:56,047 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:02:56,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:02:56,053 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:02:56,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:02:56,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:02:56,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:02:56,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:02:56,076 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:02:56,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:02:56,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:02:56,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:02:56,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:02:56,077 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:02:56,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:02:56,078 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:02:56,078 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:02:56,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:02:56,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:02:56,078 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:02:56,078 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:02:56,078 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:02:56,078 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:02:56,078 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:02:56,078 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:02:56,079 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:02:56,079 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:02:56,079 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:02:56,079 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:02:56,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:02:56,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:02:56,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:02:56,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:02:56,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:02:56,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:02:56,080 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:02:56,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:02:56,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:02:56,080 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:02:56,080 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:02:56,080 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:02:56,080 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 -> 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f [2025-02-08 08:02:56,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:02:56,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:02:56,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:02:56,331 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:02:56,331 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:02:56,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2025-02-08 08:02:57,504 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/181197c63/ac4a1fc54f014cd79ac3098ace5d6977/FLAG3c6b61359 [2025-02-08 08:02:57,786 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:02:57,786 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2025-02-08 08:02:57,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/181197c63/ac4a1fc54f014cd79ac3098ace5d6977/FLAG3c6b61359 [2025-02-08 08:02:58,081 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/181197c63/ac4a1fc54f014cd79ac3098ace5d6977 [2025-02-08 08:02:58,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:02:58,084 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:02:58,085 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:02:58,085 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:02:58,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:02:58,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:02:58" (1/1) ... [2025-02-08 08:02:58,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58686f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:02:58, skipping insertion in model container [2025-02-08 08:02:58,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:02:58" (1/1) ... [2025-02-08 08:02:58,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:02:58,450 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,481 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,487 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,492 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,500 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,522 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,522 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,524 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,524 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,527 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,528 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,528 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,529 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,531 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,532 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,533 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,534 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,534 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,535 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,537 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:02:58,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:02:58,562 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) [2025-02-08 08:02:58,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7a213fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:02:58, skipping insertion in model container [2025-02-08 08:02:58,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:02:58,563 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 08:02:58,565 INFO L158 Benchmark]: Toolchain (without parser) took 480.25ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 106.9MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:02:58,566 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 192.9MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:02:58,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.66ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 106.9MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:02:58,567 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 192.9MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.66ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 106.9MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: 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_SAX_test3-2.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 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:03:00,284 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:03:00,352 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 08:03:00,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:03:00,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:03:00,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:03:00,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:03:00,399 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:03:00,401 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:03:00,401 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:03:00,401 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:03:00,401 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:03:00,402 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:03:00,402 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:03:00,402 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:03:00,402 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:03:00,402 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:03:00,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:03:00,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:03:00,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:03:00,402 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:03:00,403 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:03:00,403 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:03:00,403 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:03:00,403 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:03:00,403 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 08:03:00,403 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 08:03:00,403 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:03:00,403 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:03:00,403 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:03:00,404 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:03:00,404 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:03:00,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:03:00,404 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:03:00,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:03:00,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:03:00,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:03:00,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:03:00,405 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 08:03:00,405 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 08:03:00,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:03:00,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:03:00,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:03:00,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:03:00,405 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 -> 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f [2025-02-08 08:03:00,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:03:00,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:03:00,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:03:00,656 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:03:00,656 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:03:00,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2025-02-08 08:03:01,861 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/18fc2c0da/208ea932ddb54f08b93d3e777dfbf79e/FLAGa8ca888e1 [2025-02-08 08:03:02,168 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:03:02,171 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2025-02-08 08:03:02,190 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/18fc2c0da/208ea932ddb54f08b93d3e777dfbf79e/FLAGa8ca888e1 [2025-02-08 08:03:02,206 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/18fc2c0da/208ea932ddb54f08b93d3e777dfbf79e [2025-02-08 08:03:02,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:03:02,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:03:02,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:03:02,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:03:02,216 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:03:02,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:02,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd43a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02, skipping insertion in model container [2025-02-08 08:03:02,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:02,251 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:03:02,543 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,571 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,574 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,581 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,588 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,609 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,610 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,613 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,614 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,616 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,619 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,620 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,620 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,625 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,625 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,628 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,628 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,629 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,630 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,633 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:03:02,654 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 08:03:02,665 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:03:02,689 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,700 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,702 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,704 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,707 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,722 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,722 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,723 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,724 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,727 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,727 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,730 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,731 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,736 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,736 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,738 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,739 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,740 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,740 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,743 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:03:02,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:03:02,751 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:03:02,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:03:02,854 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:03:02,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02 WrapperNode [2025-02-08 08:03:02,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:03:02,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:03:02,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:03:02,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:03:02,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:02,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:02,918 INFO L138 Inliner]: procedures = 180, calls = 330, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1184 [2025-02-08 08:03:02,919 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:03:02,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:03:02,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:03:02,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:03:02,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:02,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:02,940 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:03,001 INFO L175 MemorySlicer]: Split 303 memory accesses to 3 slices as follows [2, 34, 267]. 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, 4, 58]. [2025-02-08 08:03:03,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:03,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:03,026 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:03,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:03,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:03,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:03,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:03:03,049 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:03:03,049 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:03:03,049 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:03:03,050 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (1/1) ... [2025-02-08 08:03:03,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:03:03,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:03,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:03:03,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:03:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 08:03:03,100 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 08:03:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 08:03:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 08:03:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 08:03:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 08:03:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 08:03:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 08:03:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 08:03:03,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 08:03:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 08:03:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 08:03:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 08:03:03,101 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 08:03:03,101 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 08:03:03,101 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 08:03:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 08:03:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:03:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 08:03:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 08:03:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:03:03,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:03:03,277 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:03:03,279 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:03:06,261 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L733: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-08 08:03:06,348 INFO L? ?]: Removed 1309 outVars from TransFormulas that were not future-live. [2025-02-08 08:03:06,348 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:03:06,381 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:03:06,382 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:03:06,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:03:06 BoogieIcfgContainer [2025-02-08 08:03:06,382 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:03:06,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:03:06,385 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:03:06,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:03:06,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:03:02" (1/3) ... [2025-02-08 08:03:06,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5199116b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:03:06, skipping insertion in model container [2025-02-08 08:03:06,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:03:02" (2/3) ... [2025-02-08 08:03:06,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5199116b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:03:06, skipping insertion in model container [2025-02-08 08:03:06,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:03:06" (3/3) ... [2025-02-08 08:03:06,392 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test3-2.i [2025-02-08 08:03:06,404 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:03:06,405 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test3-2.i that has 6 procedures, 1295 locations, 1 initial locations, 43 loop locations, and 632 error locations. [2025-02-08 08:03:06,463 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:03:06,472 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;@40cd721d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:03:06,474 INFO L334 AbstractCegarLoop]: Starting to check reachability of 632 error locations. [2025-02-08 08:03:06,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 1285 states, 641 states have (on average 2.204368174726989) internal successors, (1413), 1277 states have internal predecessors, (1413), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:03:06,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-02-08 08:03:06,484 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:06,484 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-02-08 08:03:06,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr629REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:06,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:06,489 INFO L85 PathProgramCache]: Analyzing trace with hash 47199, now seen corresponding path program 1 times [2025-02-08 08:03:06,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:06,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1221890215] [2025-02-08 08:03:06,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:06,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:06,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:06,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:03:06,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 08:03:06,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 08:03:06,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 08:03:06,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:06,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:06,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:03:06,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:06,670 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 [2025-02-08 08:03:06,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:06,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:06,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:06,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221890215] [2025-02-08 08:03:06,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221890215] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:06,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:06,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:03:06,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095096430] [2025-02-08 08:03:06,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:06,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:03:06,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:06,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:03:06,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:06,708 INFO L87 Difference]: Start difference. First operand has 1285 states, 641 states have (on average 2.204368174726989) internal successors, (1413), 1277 states have internal predecessors, (1413), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2025-02-08 08:03:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:08,090 INFO L93 Difference]: Finished difference Result 1461 states and 1546 transitions. [2025-02-08 08:03:08,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:03:08,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2025-02-08 08:03:08,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:08,110 INFO L225 Difference]: With dead ends: 1461 [2025-02-08 08:03:08,110 INFO L226 Difference]: Without dead ends: 1456 [2025-02-08 08:03:08,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:08,114 INFO L435 NwaCegarLoop]: 785 mSDtfsCounter, 1183 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:08,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 953 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-08 08:03:08,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2025-02-08 08:03:08,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1267. [2025-02-08 08:03:08,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 642 states have (on average 2.0654205607476634) internal successors, (1326), 1260 states have internal predecessors, (1326), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:08,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1339 transitions. [2025-02-08 08:03:08,206 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1339 transitions. Word has length 2 [2025-02-08 08:03:08,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:08,207 INFO L471 AbstractCegarLoop]: Abstraction has 1267 states and 1339 transitions. [2025-02-08 08:03:08,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2025-02-08 08:03:08,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1339 transitions. [2025-02-08 08:03:08,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-02-08 08:03:08,208 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:08,208 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-02-08 08:03:08,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 08:03:08,413 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 [2025-02-08 08:03:08,413 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr630REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:08,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:08,414 INFO L85 PathProgramCache]: Analyzing trace with hash 47200, now seen corresponding path program 1 times [2025-02-08 08:03:08,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:08,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625538165] [2025-02-08 08:03:08,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:08,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:08,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:08,416 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:03:08,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 08:03:08,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 08:03:08,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 08:03:08,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:08,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:08,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:03:08,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:08,516 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 [2025-02-08 08:03:08,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:08,524 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:08,525 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:08,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625538165] [2025-02-08 08:03:08,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625538165] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:08,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:08,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:03:08,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075671531] [2025-02-08 08:03:08,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:08,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:03:08,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:08,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:03:08,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:08,526 INFO L87 Difference]: Start difference. First operand 1267 states and 1339 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2025-02-08 08:03:10,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:10,434 INFO L93 Difference]: Finished difference Result 1892 states and 2012 transitions. [2025-02-08 08:03:10,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:03:10,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2025-02-08 08:03:10,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:10,440 INFO L225 Difference]: With dead ends: 1892 [2025-02-08 08:03:10,440 INFO L226 Difference]: Without dead ends: 1892 [2025-02-08 08:03:10,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:10,441 INFO L435 NwaCegarLoop]: 1041 mSDtfsCounter, 666 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:10,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1753 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-08 08:03:10,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2025-02-08 08:03:10,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1483. [2025-02-08 08:03:10,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 859 states have (on average 2.0442374854481957) internal successors, (1756), 1476 states have internal predecessors, (1756), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:10,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1769 transitions. [2025-02-08 08:03:10,475 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1769 transitions. Word has length 2 [2025-02-08 08:03:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:10,475 INFO L471 AbstractCegarLoop]: Abstraction has 1483 states and 1769 transitions. [2025-02-08 08:03:10,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2025-02-08 08:03:10,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1769 transitions. [2025-02-08 08:03:10,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 08:03:10,476 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:10,476 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:10,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 08:03:10,676 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 [2025-02-08 08:03:10,677 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr626REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:10,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:10,677 INFO L85 PathProgramCache]: Analyzing trace with hash -301923617, now seen corresponding path program 1 times [2025-02-08 08:03:10,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:10,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004540744] [2025-02-08 08:03:10,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:10,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:10,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:10,682 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:03:10,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 08:03:10,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:03:10,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:03:10,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:10,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:10,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 08:03:10,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:10,812 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 [2025-02-08 08:03:10,870 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2025-02-08 08:03:10,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2025-02-08 08:03:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:10,927 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:10,927 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:10,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004540744] [2025-02-08 08:03:10,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004540744] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:10,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:10,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:03:10,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345791548] [2025-02-08 08:03:10,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:10,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:10,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:10,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:10,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:10,928 INFO L87 Difference]: Start difference. First operand 1483 states and 1769 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2025-02-08 08:03:15,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:15,001 INFO L93 Difference]: Finished difference Result 2806 states and 2990 transitions. [2025-02-08 08:03:15,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:03:15,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2025-02-08 08:03:15,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:15,009 INFO L225 Difference]: With dead ends: 2806 [2025-02-08 08:03:15,010 INFO L226 Difference]: Without dead ends: 2806 [2025-02-08 08:03:15,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:15,010 INFO L435 NwaCegarLoop]: 1291 mSDtfsCounter, 1629 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 2715 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:15,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 2715 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2025-02-08 08:03:15,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2025-02-08 08:03:15,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 1634. [2025-02-08 08:03:15,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1010 states have (on average 2.0247524752475248) internal successors, (2045), 1627 states have internal predecessors, (2045), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:15,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2058 transitions. [2025-02-08 08:03:15,079 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2058 transitions. Word has length 7 [2025-02-08 08:03:15,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:15,079 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2058 transitions. [2025-02-08 08:03:15,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2025-02-08 08:03:15,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2058 transitions. [2025-02-08 08:03:15,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 08:03:15,080 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:15,080 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:15,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 08:03:15,280 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 [2025-02-08 08:03:15,281 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr623REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:15,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:15,281 INFO L85 PathProgramCache]: Analyzing trace with hash -769696171, now seen corresponding path program 1 times [2025-02-08 08:03:15,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:15,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1270771580] [2025-02-08 08:03:15,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:15,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:15,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:15,284 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) [2025-02-08 08:03:15,284 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 [2025-02-08 08:03:15,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 08:03:15,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 08:03:15,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:15,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:15,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:03:15,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:15,410 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 [2025-02-08 08:03:15,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:15,419 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:15,419 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:15,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270771580] [2025-02-08 08:03:15,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270771580] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:15,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:15,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:03:15,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609595722] [2025-02-08 08:03:15,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:15,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:03:15,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:15,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:03:15,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:15,421 INFO L87 Difference]: Start difference. First operand 1634 states and 2058 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2025-02-08 08:03:16,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:16,841 INFO L93 Difference]: Finished difference Result 2183 states and 2833 transitions. [2025-02-08 08:03:16,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:03:16,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2025-02-08 08:03:16,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:16,847 INFO L225 Difference]: With dead ends: 2183 [2025-02-08 08:03:16,847 INFO L226 Difference]: Without dead ends: 2183 [2025-02-08 08:03:16,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:16,848 INFO L435 NwaCegarLoop]: 1202 mSDtfsCounter, 958 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:16,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 1565 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-08 08:03:16,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2025-02-08 08:03:16,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 1585. [2025-02-08 08:03:16,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1010 states have (on average 1.9653465346534653) internal successors, (1985), 1578 states have internal predecessors, (1985), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:16,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 1998 transitions. [2025-02-08 08:03:16,873 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 1998 transitions. Word has length 8 [2025-02-08 08:03:16,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:16,874 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 1998 transitions. [2025-02-08 08:03:16,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2025-02-08 08:03:16,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 1998 transitions. [2025-02-08 08:03:16,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 08:03:16,874 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:16,874 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:16,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 08:03:17,074 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 [2025-02-08 08:03:17,075 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr624REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:17,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:17,075 INFO L85 PathProgramCache]: Analyzing trace with hash -769696170, now seen corresponding path program 1 times [2025-02-08 08:03:17,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:17,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716651748] [2025-02-08 08:03:17,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:17,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:17,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:17,077 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) [2025-02-08 08:03:17,078 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 [2025-02-08 08:03:17,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 08:03:17,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 08:03:17,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:17,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:17,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:03:17,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:17,179 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 [2025-02-08 08:03:17,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:17,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:17,198 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:17,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716651748] [2025-02-08 08:03:17,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716651748] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:17,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:17,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:03:17,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380515467] [2025-02-08 08:03:17,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:17,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:03:17,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:17,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:03:17,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:17,199 INFO L87 Difference]: Start difference. First operand 1585 states and 1998 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2025-02-08 08:03:19,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:19,038 INFO L93 Difference]: Finished difference Result 2291 states and 2940 transitions. [2025-02-08 08:03:19,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:03:19,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2025-02-08 08:03:19,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:19,044 INFO L225 Difference]: With dead ends: 2291 [2025-02-08 08:03:19,044 INFO L226 Difference]: Without dead ends: 2291 [2025-02-08 08:03:19,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:03:19,045 INFO L435 NwaCegarLoop]: 1394 mSDtfsCounter, 713 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:19,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 1947 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-08 08:03:19,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2025-02-08 08:03:19,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 1614. [2025-02-08 08:03:19,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1049 states have (on average 1.9447092469018112) internal successors, (2040), 1607 states have internal predecessors, (2040), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:19,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2053 transitions. [2025-02-08 08:03:19,071 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2053 transitions. Word has length 8 [2025-02-08 08:03:19,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:19,071 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 2053 transitions. [2025-02-08 08:03:19,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2025-02-08 08:03:19,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2053 transitions. [2025-02-08 08:03:19,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 08:03:19,072 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:19,072 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:19,079 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 [2025-02-08 08:03:19,272 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 [2025-02-08 08:03:19,273 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr110REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:19,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:19,273 INFO L85 PathProgramCache]: Analyzing trace with hash 2116724641, now seen corresponding path program 1 times [2025-02-08 08:03:19,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:19,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [407607690] [2025-02-08 08:03:19,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:19,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:19,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:19,275 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) [2025-02-08 08:03:19,277 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 [2025-02-08 08:03:19,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 08:03:19,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 08:03:19,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:19,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:19,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 08:03:19,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:19,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:19,433 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:19,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:19,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407607690] [2025-02-08 08:03:19,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407607690] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:19,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:19,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:03:19,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513719631] [2025-02-08 08:03:19,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:19,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:19,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:19,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:19,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:19,434 INFO L87 Difference]: Start difference. First operand 1614 states and 2053 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2025-02-08 08:03:19,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:19,996 INFO L93 Difference]: Finished difference Result 2233 states and 2806 transitions. [2025-02-08 08:03:19,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:03:19,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2025-02-08 08:03:19,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:20,003 INFO L225 Difference]: With dead ends: 2233 [2025-02-08 08:03:20,004 INFO L226 Difference]: Without dead ends: 2233 [2025-02-08 08:03:20,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:03:20,005 INFO L435 NwaCegarLoop]: 1413 mSDtfsCounter, 640 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 3865 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:20,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 3865 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 08:03:20,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2025-02-08 08:03:20,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 1868. [2025-02-08 08:03:20,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1303 states have (on average 1.9577897160399078) internal successors, (2551), 1861 states have internal predecessors, (2551), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:20,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2564 transitions. [2025-02-08 08:03:20,035 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2564 transitions. Word has length 12 [2025-02-08 08:03:20,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:20,035 INFO L471 AbstractCegarLoop]: Abstraction has 1868 states and 2564 transitions. [2025-02-08 08:03:20,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2025-02-08 08:03:20,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2564 transitions. [2025-02-08 08:03:20,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 08:03:20,035 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:20,035 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:20,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 08:03:20,236 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 [2025-02-08 08:03:20,236 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr299REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:20,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:20,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1235606072, now seen corresponding path program 1 times [2025-02-08 08:03:20,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:20,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [967649670] [2025-02-08 08:03:20,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:20,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:20,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:20,238 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) [2025-02-08 08:03:20,239 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 [2025-02-08 08:03:20,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 08:03:20,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 08:03:20,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:20,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:20,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:03:20,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:20,338 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 [2025-02-08 08:03:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:20,366 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:20,366 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:20,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967649670] [2025-02-08 08:03:20,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967649670] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:20,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:20,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:03:20,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810321133] [2025-02-08 08:03:20,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:20,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:20,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:20,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:20,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:20,367 INFO L87 Difference]: Start difference. First operand 1868 states and 2564 transitions. Second operand has 4 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) [2025-02-08 08:03:21,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:21,863 INFO L93 Difference]: Finished difference Result 2055 states and 2694 transitions. [2025-02-08 08:03:21,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:03:21,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2025-02-08 08:03:21,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:21,868 INFO L225 Difference]: With dead ends: 2055 [2025-02-08 08:03:21,868 INFO L226 Difference]: Without dead ends: 2055 [2025-02-08 08:03:21,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:03:21,868 INFO L435 NwaCegarLoop]: 734 mSDtfsCounter, 1176 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:21,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 1519 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-08 08:03:21,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2025-02-08 08:03:21,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 1845. [2025-02-08 08:03:21,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1845 states, 1303 states have (on average 1.8871834228702993) internal successors, (2459), 1838 states have internal predecessors, (2459), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:21,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1845 states to 1845 states and 2472 transitions. [2025-02-08 08:03:21,890 INFO L78 Accepts]: Start accepts. Automaton has 1845 states and 2472 transitions. Word has length 14 [2025-02-08 08:03:21,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:21,890 INFO L471 AbstractCegarLoop]: Abstraction has 1845 states and 2472 transitions. [2025-02-08 08:03:21,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2025-02-08 08:03:21,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1845 states and 2472 transitions. [2025-02-08 08:03:21,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 08:03:21,891 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:21,891 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:21,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 08:03:22,091 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 [2025-02-08 08:03:22,092 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr300REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:22,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:22,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1235606071, now seen corresponding path program 1 times [2025-02-08 08:03:22,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:22,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156315803] [2025-02-08 08:03:22,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:22,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:22,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:22,095 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) [2025-02-08 08:03:22,096 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 [2025-02-08 08:03:22,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 08:03:22,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 08:03:22,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:22,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:22,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:03:22,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:22,207 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 [2025-02-08 08:03:22,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:22,281 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:22,281 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:22,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156315803] [2025-02-08 08:03:22,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156315803] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:22,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:22,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:03:22,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455994375] [2025-02-08 08:03:22,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:22,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:22,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:22,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:22,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:22,282 INFO L87 Difference]: Start difference. First operand 1845 states and 2472 transitions. Second operand has 4 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) [2025-02-08 08:03:24,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:24,704 INFO L93 Difference]: Finished difference Result 2189 states and 2642 transitions. [2025-02-08 08:03:24,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:03:24,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2025-02-08 08:03:24,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:24,709 INFO L225 Difference]: With dead ends: 2189 [2025-02-08 08:03:24,709 INFO L226 Difference]: Without dead ends: 2189 [2025-02-08 08:03:24,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:03:24,709 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 640 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:24,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 2268 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-08 08:03:24,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2025-02-08 08:03:24,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 1794. [2025-02-08 08:03:24,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1252 states have (on average 1.8865814696485623) internal successors, (2362), 1787 states have internal predecessors, (2362), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:24,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2375 transitions. [2025-02-08 08:03:24,730 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2375 transitions. Word has length 14 [2025-02-08 08:03:24,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:24,730 INFO L471 AbstractCegarLoop]: Abstraction has 1794 states and 2375 transitions. [2025-02-08 08:03:24,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2025-02-08 08:03:24,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2375 transitions. [2025-02-08 08:03:24,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-08 08:03:24,731 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:24,731 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:24,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 08:03:24,931 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 [2025-02-08 08:03:24,932 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr276REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:24,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:24,932 INFO L85 PathProgramCache]: Analyzing trace with hash 350873483, now seen corresponding path program 1 times [2025-02-08 08:03:24,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:24,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [360156719] [2025-02-08 08:03:24,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:24,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:24,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:24,934 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) [2025-02-08 08:03:24,935 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 [2025-02-08 08:03:25,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:03:25,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:03:25,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:25,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:25,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:03:25,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:25,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:25,049 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:25,049 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:25,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360156719] [2025-02-08 08:03:25,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360156719] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:25,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:25,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:03:25,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833069846] [2025-02-08 08:03:25,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:25,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:25,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:25,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:25,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:25,050 INFO L87 Difference]: Start difference. First operand 1794 states and 2375 transitions. Second operand has 4 states, 4 states have (on average 3.75) 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) [2025-02-08 08:03:25,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:25,097 INFO L93 Difference]: Finished difference Result 1722 states and 2252 transitions. [2025-02-08 08:03:25,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:03:25,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) 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 [2025-02-08 08:03:25,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:25,101 INFO L225 Difference]: With dead ends: 1722 [2025-02-08 08:03:25,102 INFO L226 Difference]: Without dead ends: 1722 [2025-02-08 08:03:25,102 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 [2025-02-08 08:03:25,103 INFO L435 NwaCegarLoop]: 1167 mSDtfsCounter, 45 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:25,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3478 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:03:25,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2025-02-08 08:03:25,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1722. [2025-02-08 08:03:25,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1199 states have (on average 1.8673894912427023) internal successors, (2239), 1715 states have internal predecessors, (2239), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:25,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2252 transitions. [2025-02-08 08:03:25,122 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2252 transitions. Word has length 15 [2025-02-08 08:03:25,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:25,122 INFO L471 AbstractCegarLoop]: Abstraction has 1722 states and 2252 transitions. [2025-02-08 08:03:25,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) 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) [2025-02-08 08:03:25,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2252 transitions. [2025-02-08 08:03:25,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-08 08:03:25,123 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:25,123 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:25,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 08:03:25,323 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 [2025-02-08 08:03:25,324 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:25,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:25,327 INFO L85 PathProgramCache]: Analyzing trace with hash 594130538, now seen corresponding path program 1 times [2025-02-08 08:03:25,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:25,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [346617758] [2025-02-08 08:03:25,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:25,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:25,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:25,332 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) [2025-02-08 08:03:25,334 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 [2025-02-08 08:03:25,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:03:25,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:03:25,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:25,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:25,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 08:03:25,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:25,458 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 08:03:25,458 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 08:03:25,459 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 08:03:25,461 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 [2025-02-08 08:03:25,506 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 08:03:25,506 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 [2025-02-08 08:03:25,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:25,516 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:25,516 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:25,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346617758] [2025-02-08 08:03:25,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346617758] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:25,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:25,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:03:25,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584647323] [2025-02-08 08:03:25,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:25,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:25,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:25,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:25,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:25,517 INFO L87 Difference]: Start difference. First operand 1722 states and 2252 transitions. Second operand has 4 states, 4 states have (on average 3.75) 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) [2025-02-08 08:03:25,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:25,731 INFO L93 Difference]: Finished difference Result 2465 states and 2846 transitions. [2025-02-08 08:03:25,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:03:25,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) 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 [2025-02-08 08:03:25,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:25,737 INFO L225 Difference]: With dead ends: 2465 [2025-02-08 08:03:25,737 INFO L226 Difference]: Without dead ends: 2465 [2025-02-08 08:03:25,737 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 [2025-02-08 08:03:25,737 INFO L435 NwaCegarLoop]: 1162 mSDtfsCounter, 1102 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:25,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 3468 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 08:03:25,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2025-02-08 08:03:25,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 1402. [2025-02-08 08:03:25,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 879 states have (on average 1.8850967007963595) internal successors, (1657), 1395 states have internal predecessors, (1657), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1670 transitions. [2025-02-08 08:03:25,766 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1670 transitions. Word has length 15 [2025-02-08 08:03:25,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:25,766 INFO L471 AbstractCegarLoop]: Abstraction has 1402 states and 1670 transitions. [2025-02-08 08:03:25,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) 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) [2025-02-08 08:03:25,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1670 transitions. [2025-02-08 08:03:25,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 08:03:25,767 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:25,767 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:25,773 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 [2025-02-08 08:03:25,967 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 [2025-02-08 08:03:25,967 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr615REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:25,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:25,968 INFO L85 PathProgramCache]: Analyzing trace with hash 729179176, now seen corresponding path program 1 times [2025-02-08 08:03:25,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:25,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1867621923] [2025-02-08 08:03:25,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:25,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:25,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:25,970 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) [2025-02-08 08:03:25,972 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 [2025-02-08 08:03:26,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:03:26,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:03:26,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:26,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:26,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:03:26,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:26,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:26,123 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:26,123 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:26,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867621923] [2025-02-08 08:03:26,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867621923] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:26,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:26,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:03:26,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416889430] [2025-02-08 08:03:26,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:26,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:26,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:26,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:26,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:26,125 INFO L87 Difference]: Start difference. First operand 1402 states and 1670 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2025-02-08 08:03:27,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:27,964 INFO L93 Difference]: Finished difference Result 1786 states and 2148 transitions. [2025-02-08 08:03:27,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:03:27,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2025-02-08 08:03:27,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:27,968 INFO L225 Difference]: With dead ends: 1786 [2025-02-08 08:03:27,969 INFO L226 Difference]: Without dead ends: 1786 [2025-02-08 08:03:27,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:03:27,970 INFO L435 NwaCegarLoop]: 729 mSDtfsCounter, 924 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:27,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 1595 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-08 08:03:27,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2025-02-08 08:03:27,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1379. [2025-02-08 08:03:27,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 879 states have (on average 1.8327645051194539) internal successors, (1611), 1372 states have internal predecessors, (1611), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:27,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1624 transitions. [2025-02-08 08:03:27,985 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1624 transitions. Word has length 18 [2025-02-08 08:03:27,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:27,985 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 1624 transitions. [2025-02-08 08:03:27,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2025-02-08 08:03:27,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1624 transitions. [2025-02-08 08:03:27,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 08:03:27,986 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:27,986 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:03:27,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-08 08:03:28,190 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 [2025-02-08 08:03:28,190 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr616REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:28,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:28,191 INFO L85 PathProgramCache]: Analyzing trace with hash 729179177, now seen corresponding path program 1 times [2025-02-08 08:03:28,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:28,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945170017] [2025-02-08 08:03:28,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:28,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:28,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:28,193 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) [2025-02-08 08:03:28,194 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 [2025-02-08 08:03:28,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:03:28,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:03:28,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:28,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:28,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:03:28,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:28,344 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 [2025-02-08 08:03:28,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:28,420 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:28,420 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:28,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945170017] [2025-02-08 08:03:28,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945170017] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:28,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:28,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:03:28,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46442876] [2025-02-08 08:03:28,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:28,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:28,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:28,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:28,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:28,421 INFO L87 Difference]: Start difference. First operand 1379 states and 1624 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2025-02-08 08:03:30,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:30,699 INFO L93 Difference]: Finished difference Result 2034 states and 2400 transitions. [2025-02-08 08:03:30,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:03:30,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2025-02-08 08:03:30,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:30,703 INFO L225 Difference]: With dead ends: 2034 [2025-02-08 08:03:30,703 INFO L226 Difference]: Without dead ends: 2034 [2025-02-08 08:03:30,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:03:30,704 INFO L435 NwaCegarLoop]: 1335 mSDtfsCounter, 750 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:30,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 2702 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-08 08:03:30,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2025-02-08 08:03:30,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 1493. [2025-02-08 08:03:30,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 993 states have (on average 1.7613293051359518) internal successors, (1749), 1486 states have internal predecessors, (1749), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:30,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1762 transitions. [2025-02-08 08:03:30,719 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1762 transitions. Word has length 18 [2025-02-08 08:03:30,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:30,719 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 1762 transitions. [2025-02-08 08:03:30,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2025-02-08 08:03:30,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1762 transitions. [2025-02-08 08:03:30,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-08 08:03:30,722 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:30,723 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] [2025-02-08 08:03:30,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-08 08:03:30,925 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 [2025-02-08 08:03:30,925 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr616REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:30,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:30,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1988285917, now seen corresponding path program 1 times [2025-02-08 08:03:30,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:30,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877806196] [2025-02-08 08:03:30,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:30,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:30,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:30,928 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) [2025-02-08 08:03:30,929 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 [2025-02-08 08:03:31,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-08 08:03:31,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 08:03:31,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:31,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:31,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 08:03:31,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:31,111 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 [2025-02-08 08:03:31,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:31,271 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:03:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:31,636 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:31,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877806196] [2025-02-08 08:03:31,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877806196] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:03:31,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:03:31,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-02-08 08:03:31,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945876206] [2025-02-08 08:03:31,637 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:03:31,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:03:31,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:31,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:03:31,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:03:31,641 INFO L87 Difference]: Start difference. First operand 1493 states and 1762 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 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) [2025-02-08 08:03:38,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:38,216 INFO L93 Difference]: Finished difference Result 2390 states and 2890 transitions. [2025-02-08 08:03:38,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:03:38,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 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 37 [2025-02-08 08:03:38,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:38,225 INFO L225 Difference]: With dead ends: 2390 [2025-02-08 08:03:38,225 INFO L226 Difference]: Without dead ends: 2390 [2025-02-08 08:03:38,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2025-02-08 08:03:38,226 INFO L435 NwaCegarLoop]: 1362 mSDtfsCounter, 2365 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 3683 SdHoareTripleChecker+Invalid, 2409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:38,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2366 Valid, 3683 Invalid, 2409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2025-02-08 08:03:38,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2025-02-08 08:03:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1657. [2025-02-08 08:03:38,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1157 states have (on average 1.7121866897147795) internal successors, (1981), 1650 states have internal predecessors, (1981), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:38,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 1994 transitions. [2025-02-08 08:03:38,243 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 1994 transitions. Word has length 37 [2025-02-08 08:03:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:38,243 INFO L471 AbstractCegarLoop]: Abstraction has 1657 states and 1994 transitions. [2025-02-08 08:03:38,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 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) [2025-02-08 08:03:38,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 1994 transitions. [2025-02-08 08:03:38,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-08 08:03:38,246 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:38,246 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] [2025-02-08 08:03:38,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-08 08:03:38,447 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 [2025-02-08 08:03:38,447 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr534REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:38,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:38,447 INFO L85 PathProgramCache]: Analyzing trace with hash -704234984, now seen corresponding path program 1 times [2025-02-08 08:03:38,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:38,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268005282] [2025-02-08 08:03:38,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:38,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:38,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:38,451 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) [2025-02-08 08:03:38,451 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 [2025-02-08 08:03:38,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 08:03:38,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 08:03:38,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:38,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:38,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:03:38,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:38,668 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:38,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:38,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268005282] [2025-02-08 08:03:38,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268005282] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:38,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:38,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:03:38,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524868315] [2025-02-08 08:03:38,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:38,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:38,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:38,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:38,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:38,672 INFO L87 Difference]: Start difference. First operand 1657 states and 1994 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2025-02-08 08:03:38,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:38,742 INFO L93 Difference]: Finished difference Result 1346 states and 1558 transitions. [2025-02-08 08:03:38,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:03:38,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2025-02-08 08:03:38,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:38,745 INFO L225 Difference]: With dead ends: 1346 [2025-02-08 08:03:38,745 INFO L226 Difference]: Without dead ends: 1346 [2025-02-08 08:03:38,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:03:38,745 INFO L435 NwaCegarLoop]: 1104 mSDtfsCounter, 56 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:38,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3239 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:03:38,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2025-02-08 08:03:38,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1344. [2025-02-08 08:03:38,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 867 states have (on average 1.7797001153402539) internal successors, (1543), 1337 states have internal predecessors, (1543), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:38,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1556 transitions. [2025-02-08 08:03:38,758 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1556 transitions. Word has length 53 [2025-02-08 08:03:38,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:38,758 INFO L471 AbstractCegarLoop]: Abstraction has 1344 states and 1556 transitions. [2025-02-08 08:03:38,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2025-02-08 08:03:38,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1556 transitions. [2025-02-08 08:03:38,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-08 08:03:38,759 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:38,759 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] [2025-02-08 08:03:38,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-02-08 08:03:38,959 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 [2025-02-08 08:03:38,959 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr534REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:38,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:38,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2085731296, now seen corresponding path program 1 times [2025-02-08 08:03:38,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:38,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750897964] [2025-02-08 08:03:38,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:38,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:38,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:38,962 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) [2025-02-08 08:03:38,962 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 [2025-02-08 08:03:39,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-08 08:03:39,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-08 08:03:39,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:39,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:39,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 08:03:39,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:39,158 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 [2025-02-08 08:03:39,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 08:03:39,490 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 [2025-02-08 08:03:39,501 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 08:03:39,501 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 [2025-02-08 08:03:39,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:39,507 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:39,507 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:39,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750897964] [2025-02-08 08:03:39,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750897964] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:39,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:39,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:03:39,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284707265] [2025-02-08 08:03:39,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:39,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:03:39,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:39,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:03:39,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:03:39,508 INFO L87 Difference]: Start difference. First operand 1344 states and 1556 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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) [2025-02-08 08:03:41,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:41,499 INFO L93 Difference]: Finished difference Result 1705 states and 2034 transitions. [2025-02-08 08:03:41,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:03:41,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 61 [2025-02-08 08:03:41,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:41,502 INFO L225 Difference]: With dead ends: 1705 [2025-02-08 08:03:41,502 INFO L226 Difference]: Without dead ends: 1705 [2025-02-08 08:03:41,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:03:41,503 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 1890 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:41,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 1073 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-08 08:03:41,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2025-02-08 08:03:41,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1267. [2025-02-08 08:03:41,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 828 states have (on average 1.7258454106280192) internal successors, (1429), 1260 states have internal predecessors, (1429), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:41,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1442 transitions. [2025-02-08 08:03:41,513 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1442 transitions. Word has length 61 [2025-02-08 08:03:41,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:41,513 INFO L471 AbstractCegarLoop]: Abstraction has 1267 states and 1442 transitions. [2025-02-08 08:03:41,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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) [2025-02-08 08:03:41,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1442 transitions. [2025-02-08 08:03:41,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 08:03:41,514 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:41,514 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] [2025-02-08 08:03:41,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-08 08:03:41,714 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 [2025-02-08 08:03:41,714 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr527REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:41,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:41,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1742317971, now seen corresponding path program 1 times [2025-02-08 08:03:41,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:41,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [542973314] [2025-02-08 08:03:41,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:41,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:41,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:41,717 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) [2025-02-08 08:03:41,717 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 [2025-02-08 08:03:41,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 08:03:41,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 08:03:41,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:41,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:41,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:03:41,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:41,908 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 [2025-02-08 08:03:41,920 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 [2025-02-08 08:03:41,937 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 [2025-02-08 08:03:41,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:41,943 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:41,943 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:41,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542973314] [2025-02-08 08:03:41,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542973314] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:41,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:41,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:03:41,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626961282] [2025-02-08 08:03:41,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:41,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:03:41,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:41,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:03:41,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:03:41,944 INFO L87 Difference]: Start difference. First operand 1267 states and 1442 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2025-02-08 08:03:43,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:43,549 INFO L93 Difference]: Finished difference Result 1266 states and 1441 transitions. [2025-02-08 08:03:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:03:43,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2025-02-08 08:03:43,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:43,552 INFO L225 Difference]: With dead ends: 1266 [2025-02-08 08:03:43,552 INFO L226 Difference]: Without dead ends: 1266 [2025-02-08 08:03:43,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:03:43,552 INFO L435 NwaCegarLoop]: 1076 mSDtfsCounter, 2 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:43,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2828 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-08 08:03:43,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2025-02-08 08:03:43,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1266. [2025-02-08 08:03:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 828 states have (on average 1.7246376811594204) internal successors, (1428), 1259 states have internal predecessors, (1428), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1441 transitions. [2025-02-08 08:03:43,563 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1441 transitions. Word has length 66 [2025-02-08 08:03:43,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:43,563 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1441 transitions. [2025-02-08 08:03:43,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2025-02-08 08:03:43,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1441 transitions. [2025-02-08 08:03:43,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 08:03:43,564 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:43,564 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] [2025-02-08 08:03:43,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-08 08:03:43,768 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 [2025-02-08 08:03:43,768 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr528REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:43,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:43,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1742317972, now seen corresponding path program 1 times [2025-02-08 08:03:43,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:43,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1515648909] [2025-02-08 08:03:43,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:43,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:43,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:43,771 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) [2025-02-08 08:03:43,772 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 [2025-02-08 08:03:43,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 08:03:43,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 08:03:43,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:43,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:43,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 08:03:43,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:43,961 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 [2025-02-08 08:03:43,972 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 [2025-02-08 08:03:43,977 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 [2025-02-08 08:03:44,007 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 [2025-02-08 08:03:44,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:44,021 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:44,021 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:44,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515648909] [2025-02-08 08:03:44,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515648909] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:44,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:44,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:03:44,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044615479] [2025-02-08 08:03:44,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:44,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:03:44,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:44,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:03:44,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:03:44,023 INFO L87 Difference]: Start difference. First operand 1266 states and 1441 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2025-02-08 08:03:46,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:46,118 INFO L93 Difference]: Finished difference Result 1265 states and 1440 transitions. [2025-02-08 08:03:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:03:46,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2025-02-08 08:03:46,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:46,120 INFO L225 Difference]: With dead ends: 1265 [2025-02-08 08:03:46,120 INFO L226 Difference]: Without dead ends: 1265 [2025-02-08 08:03:46,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:03:46,121 INFO L435 NwaCegarLoop]: 1076 mSDtfsCounter, 1 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:46,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2832 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-08 08:03:46,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2025-02-08 08:03:46,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2025-02-08 08:03:46,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 827 states have (on average 1.7255139056831923) internal successors, (1427), 1258 states have internal predecessors, (1427), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 08:03:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1440 transitions. [2025-02-08 08:03:46,139 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1440 transitions. Word has length 66 [2025-02-08 08:03:46,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:46,139 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 1440 transitions. [2025-02-08 08:03:46,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2025-02-08 08:03:46,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1440 transitions. [2025-02-08 08:03:46,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-08 08:03:46,140 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:46,140 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] [2025-02-08 08:03:46,151 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 [2025-02-08 08:03:46,341 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 [2025-02-08 08:03:46,341 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:46,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:46,342 INFO L85 PathProgramCache]: Analyzing trace with hash -594739600, now seen corresponding path program 1 times [2025-02-08 08:03:46,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:46,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1532873009] [2025-02-08 08:03:46,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:46,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:46,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:46,344 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) [2025-02-08 08:03:46,344 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 [2025-02-08 08:03:46,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-08 08:03:46,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-08 08:03:46,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:46,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:46,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 08:03:46,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:46,535 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 [2025-02-08 08:03:46,585 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 [2025-02-08 08:03:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:46,595 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:46,595 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:46,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532873009] [2025-02-08 08:03:46,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532873009] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:46,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:46,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:03:46,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005058921] [2025-02-08 08:03:46,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:46,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:03:46,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:46,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:03:46,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:03:46,596 INFO L87 Difference]: Start difference. First operand 1265 states and 1440 transitions. Second operand has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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) [2025-02-08 08:03:48,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:48,862 INFO L93 Difference]: Finished difference Result 1277 states and 1455 transitions. [2025-02-08 08:03:48,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:03:48,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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 74 [2025-02-08 08:03:48,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:48,865 INFO L225 Difference]: With dead ends: 1277 [2025-02-08 08:03:48,866 INFO L226 Difference]: Without dead ends: 1277 [2025-02-08 08:03:48,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:03:48,866 INFO L435 NwaCegarLoop]: 1063 mSDtfsCounter, 11 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4499 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:48,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4499 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-08 08:03:48,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2025-02-08 08:03:48,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1271. [2025-02-08 08:03:48,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 832 states have (on average 1.7235576923076923) internal successors, (1434), 1263 states have internal predecessors, (1434), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 08:03:48,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1450 transitions. [2025-02-08 08:03:48,877 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1450 transitions. Word has length 74 [2025-02-08 08:03:48,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:48,877 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 1450 transitions. [2025-02-08 08:03:48,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 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) [2025-02-08 08:03:48,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1450 transitions. [2025-02-08 08:03:48,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-08 08:03:48,878 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:48,878 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] [2025-02-08 08:03:48,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-02-08 08:03:49,079 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 [2025-02-08 08:03:49,079 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr524REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:49,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:49,079 INFO L85 PathProgramCache]: Analyzing trace with hash -594739599, now seen corresponding path program 1 times [2025-02-08 08:03:49,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:49,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1039787498] [2025-02-08 08:03:49,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:49,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:49,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:49,081 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) [2025-02-08 08:03:49,082 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 [2025-02-08 08:03:49,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-08 08:03:49,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-08 08:03:49,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:49,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:49,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:03:49,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:49,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:03:49,280 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:49,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039787498] [2025-02-08 08:03:49,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039787498] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:03:49,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:03:49,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:03:49,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119984680] [2025-02-08 08:03:49,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:03:49,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:03:49,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:49,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:03:49,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:49,281 INFO L87 Difference]: Start difference. First operand 1271 states and 1450 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2025-02-08 08:03:49,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:49,314 INFO L93 Difference]: Finished difference Result 1268 states and 1444 transitions. [2025-02-08 08:03:49,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:03:49,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 74 [2025-02-08 08:03:49,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:49,321 INFO L225 Difference]: With dead ends: 1268 [2025-02-08 08:03:49,321 INFO L226 Difference]: Without dead ends: 1268 [2025-02-08 08:03:49,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:03:49,321 INFO L435 NwaCegarLoop]: 1076 mSDtfsCounter, 0 mSDsluCounter, 2147 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3223 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 [2025-02-08 08:03:49,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3223 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:03:49,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2025-02-08 08:03:49,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1268. [2025-02-08 08:03:49,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 829 states have (on average 1.7249698431845597) internal successors, (1430), 1261 states have internal predecessors, (1430), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 08:03:49,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1444 transitions. [2025-02-08 08:03:49,337 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1444 transitions. Word has length 74 [2025-02-08 08:03:49,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:49,337 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1444 transitions. [2025-02-08 08:03:49,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2025-02-08 08:03:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1444 transitions. [2025-02-08 08:03:49,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-08 08:03:49,338 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:49,338 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] [2025-02-08 08:03:49,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-08 08:03:49,538 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 [2025-02-08 08:03:49,538 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:49,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:49,540 INFO L85 PathProgramCache]: Analyzing trace with hash 733638745, now seen corresponding path program 1 times [2025-02-08 08:03:49,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:49,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016533064] [2025-02-08 08:03:49,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:03:49,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:49,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:49,542 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) [2025-02-08 08:03:49,543 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 [2025-02-08 08:03:49,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-08 08:03:49,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-08 08:03:49,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:03:49,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:03:49,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:03:49,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:03:49,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:49,758 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:03:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:03:49,796 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:03:49,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016533064] [2025-02-08 08:03:49,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016533064] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:03:49,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:03:49,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 08:03:49,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448888628] [2025-02-08 08:03:49,796 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:03:49,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:03:49,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:03:49,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:03:49,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:03:49,797 INFO L87 Difference]: Start difference. First operand 1268 states and 1444 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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) [2025-02-08 08:03:49,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:03:49,892 INFO L93 Difference]: Finished difference Result 1280 states and 1461 transitions. [2025-02-08 08:03:49,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:03:49,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 75 [2025-02-08 08:03:49,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:03:49,896 INFO L225 Difference]: With dead ends: 1280 [2025-02-08 08:03:49,896 INFO L226 Difference]: Without dead ends: 1280 [2025-02-08 08:03:49,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:03:49,896 INFO L435 NwaCegarLoop]: 1076 mSDtfsCounter, 8 mSDsluCounter, 4290 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5366 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:03:49,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5366 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:03:49,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2025-02-08 08:03:49,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1278. [2025-02-08 08:03:49,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 838 states have (on average 1.724343675417661) internal successors, (1445), 1270 states have internal predecessors, (1445), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 08:03:49,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1459 transitions. [2025-02-08 08:03:49,909 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1459 transitions. Word has length 75 [2025-02-08 08:03:49,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:03:49,909 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1459 transitions. [2025-02-08 08:03:49,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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) [2025-02-08 08:03:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1459 transitions. [2025-02-08 08:03:49,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-02-08 08:03:49,910 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:03:49,910 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] [2025-02-08 08:03:49,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-02-08 08:03:50,110 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 [2025-02-08 08:03:50,111 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 08:03:50,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:03:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash -179392336, now seen corresponding path program 2 times [2025-02-08 08:03:50,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:03:50,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [219024583] [2025-02-08 08:03:50,112 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:03:50,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:03:50,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:03:50,113 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) [2025-02-08 08:03:50,114 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 [2025-02-08 08:03:50,252 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes.