./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 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/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-?-551b009-m [2025-01-10 00:28:39,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:28:39,412 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 00:28:39,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:28:39,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:28:39,453 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:28:39,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:28:39,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:28:39,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:28:39,455 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:28:39,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:28:39,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:28:39,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:28:39,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:28:39,457 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:28:39,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:28:39,457 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:28:39,457 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:28:39,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:28:39,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:28:39,458 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:28:39,458 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:28:39,459 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:28:39,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:28:39,459 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:28:39,459 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:28:39,459 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:28:39,459 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:28:39,459 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:28:39,459 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:28:39,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:28:39,460 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:28:39,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:28:39,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:28:39,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:28:39,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:28:39,461 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:28:39,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:28:39,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:28:39,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:28:39,461 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:28:39,461 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:28:39,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:28:39,462 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:28:39,462 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:28:39,462 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:28:39,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:28:39,462 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 [2025-01-10 00:28:39,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:28:39,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:28:39,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:28:39,751 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:28:39,751 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:28:39,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2025-01-10 00:28:41,083 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e8a5735ea/07d2cec4fff64c19b706421b9b8c2b48/FLAGed1535857 [2025-01-10 00:28:41,477 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:28:41,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2025-01-10 00:28:41,499 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e8a5735ea/07d2cec4fff64c19b706421b9b8c2b48/FLAGed1535857 [2025-01-10 00:28:41,519 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e8a5735ea/07d2cec4fff64c19b706421b9b8c2b48 [2025-01-10 00:28:41,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:28:41,524 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:28:41,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:28:41,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:28:41,531 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:28:41,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:28:41" (1/1) ... [2025-01-10 00:28:41,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4add3508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:41, skipping insertion in model container [2025-01-10 00:28:41,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:28:41" (1/1) ... [2025-01-10 00:28:41,582 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:28:41,915 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:41,958 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:41,963 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:41,970 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:41,981 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,019 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,021 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,024 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,024 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,026 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,029 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,030 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,030 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,037 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,038 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,039 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,041 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,041 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,042 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,045 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:42,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:28:42,067 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) [2025-01-10 00:28:42,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b2aadac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:42, skipping insertion in model container [2025-01-10 00:28:42,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:28:42,068 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-01-10 00:28:42,070 INFO L158 Benchmark]: Toolchain (without parser) took 544.37ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 90.6MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:28:42,070 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:28:42,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 541.37ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 90.6MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:28:42,072 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 541.37ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 90.6MB 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-?-551b009-m [2025-01-10 00:28:44,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:28:44,252 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-01-10 00:28:44,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:28:44,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:28:44,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:28:44,301 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:28:44,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:28:44,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:28:44,302 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:28:44,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:28:44,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:28:44,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:28:44,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:28:44,303 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:28:44,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:28:44,304 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:28:44,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:28:44,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:28:44,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:28:44,304 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:28:44,304 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:28:44,305 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:28:44,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:28:44,305 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:28:44,305 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-10 00:28:44,305 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-10 00:28:44,305 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:28:44,305 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:28:44,305 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:28:44,306 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:28:44,306 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:28:44,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:28:44,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:28:44,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:28:44,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:28:44,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:28:44,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:28:44,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:28:44,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:28:44,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:28:44,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:28:44,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:28:44,308 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-10 00:28:44,308 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-10 00:28:44,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:28:44,308 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:28:44,308 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:28:44,308 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:28:44,309 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 [2025-01-10 00:28:44,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:28:44,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:28:44,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:28:44,625 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:28:44,626 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:28:44,627 INFO L431 ainManager$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 [2025-01-10 00:28:46,005 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/47becaec9/5b9b228e246d49d9a8ebeac9d5b1ba42/FLAG953501536 [2025-01-10 00:28:46,364 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:28:46,364 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2025-01-10 00:28:46,384 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/47becaec9/5b9b228e246d49d9a8ebeac9d5b1ba42/FLAG953501536 [2025-01-10 00:28:46,400 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/47becaec9/5b9b228e246d49d9a8ebeac9d5b1ba42 [2025-01-10 00:28:46,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:28:46,405 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:28:46,406 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:28:46,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:28:46,410 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:28:46,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:28:46" (1/1) ... [2025-01-10 00:28:46,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a408029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:46, skipping insertion in model container [2025-01-10 00:28:46,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:28:46" (1/1) ... [2025-01-10 00:28:46,456 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:28:46,783 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,819 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,826 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,832 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,838 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,874 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,874 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,877 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,877 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,880 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,882 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,883 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,884 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,888 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,889 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,890 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,891 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,892 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,893 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,897 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:46,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:28:46,924 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-10 00:28:46,942 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:28:46,986 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,009 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,015 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,018 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,025 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,051 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,051 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,053 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,053 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,054 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,055 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,055 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,056 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,058 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,059 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,060 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,064 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,064 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,065 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,070 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:28:47,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:28:47,078 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:28:47,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:28:47,215 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:28:47,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47 WrapperNode [2025-01-10 00:28:47,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:28:47,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:28:47,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:28:47,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:28:47,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,320 INFO L138 Inliner]: procedures = 180, calls = 330, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1184 [2025-01-10 00:28:47,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:28:47,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:28:47,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:28:47,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:28:47,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,364 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,457 INFO L175 MemorySlicer]: Split 303 memory accesses to 3 slices as follows [2, 267, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2025-01-10 00:28:47,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,509 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,512 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,525 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:28:47,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:28:47,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:28:47,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:28:47,555 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (1/1) ... [2025-01-10 00:28:47,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:28:47,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:28:47,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 00:28:47,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 00:28:47,610 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-01-10 00:28:47,611 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-01-10 00:28:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-01-10 00:28:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-01-10 00:28:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-01-10 00:28:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-10 00:28:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-10 00:28:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-10 00:28:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-10 00:28:47,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-10 00:28:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-10 00:28:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-10 00:28:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-10 00:28:47,614 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-10 00:28:47,614 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-10 00:28:47,614 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-10 00:28:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 00:28:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:28:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 00:28:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 00:28:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 00:28:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:28:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 00:28:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 00:28:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 00:28:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:28:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-10 00:28:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-10 00:28:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-10 00:28:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-10 00:28:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-10 00:28:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-10 00:28:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:28:47,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:28:47,846 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:28:47,848 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:28:47,870 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:28:47,906 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:28:47,931 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:28:51,810 INFO L? ?]: Removed 1310 outVars from TransFormulas that were not future-live. [2025-01-10 00:28:51,811 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:28:51,851 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:28:51,852 INFO L312 CfgBuilder]: Removed 35 assume(true) statements. [2025-01-10 00:28:51,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:28:51 BoogieIcfgContainer [2025-01-10 00:28:51,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:28:51,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:28:51,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:28:51,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:28:51,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:28:46" (1/3) ... [2025-01-10 00:28:51,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d3f4a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:28:51, skipping insertion in model container [2025-01-10 00:28:51,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:28:47" (2/3) ... [2025-01-10 00:28:51,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d3f4a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:28:51, skipping insertion in model container [2025-01-10 00:28:51,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:28:51" (3/3) ... [2025-01-10 00:28:51,866 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test3-2.i [2025-01-10 00:28:51,880 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:28:51,881 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test3-2.i that has 6 procedures, 1280 locations, 1 initial locations, 43 loop locations, and 632 error locations. [2025-01-10 00:28:51,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:28:51,950 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;@1938ce90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:28:51,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 632 error locations. [2025-01-10 00:28:51,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 1270 states, 627 states have (on average 2.2312599681020733) internal successors, (1399), 1263 states have internal predecessors, (1399), 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) [2025-01-10 00:28:51,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:28:51,961 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:51,961 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:28:51,962 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:28:51,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:51,968 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2025-01-10 00:28:51,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:28:51,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678198916] [2025-01-10 00:28:51,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:51,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:28:51,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:28:51,980 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:28:51,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 00:28:52,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:28:52,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:28:52,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:52,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:52,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:28:52,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:28:52,187 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 [2025-01-10 00:28:52,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:52,210 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:28:52,211 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:28:52,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678198916] [2025-01-10 00:28:52,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678198916] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:52,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:52,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:28:52,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644309011] [2025-01-10 00:28:52,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:52,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:28:52,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:28:52,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:28:52,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:28:52,245 INFO L87 Difference]: Start difference. First operand has 1270 states, 627 states have (on average 2.2312599681020733) internal successors, (1399), 1263 states have internal predecessors, (1399), 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 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:54,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:54,089 INFO L93 Difference]: Finished difference Result 1443 states and 1529 transitions. [2025-01-10 00:28:54,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:28:54,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-01-10 00:28:54,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:54,107 INFO L225 Difference]: With dead ends: 1443 [2025-01-10 00:28:54,107 INFO L226 Difference]: Without dead ends: 1441 [2025-01-10 00:28:54,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:28:54,112 INFO L435 NwaCegarLoop]: 771 mSDtfsCounter, 1168 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:54,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 936 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-01-10 00:28:54,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2025-01-10 00:28:54,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1255. [2025-01-10 00:28:54,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 629 states have (on average 2.0890302066772657) internal successors, (1314), 1248 states have internal predecessors, (1314), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:28:54,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1332 transitions. [2025-01-10 00:28:54,208 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1332 transitions. Word has length 3 [2025-01-10 00:28:54,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:54,208 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1332 transitions. [2025-01-10 00:28:54,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:54,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1332 transitions. [2025-01-10 00:28:54,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:28:54,209 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:54,209 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:28:54,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 00:28:54,409 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 [2025-01-10 00:28:54,410 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:28:54,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:54,410 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2025-01-10 00:28:54,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:28:54,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [183089713] [2025-01-10 00:28:54,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:54,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:28:54,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:28:54,413 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:28:54,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 00:28:54,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:28:54,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:28:54,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:54,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:54,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:28:54,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:28:54,551 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 [2025-01-10 00:28:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:54,563 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:28:54,563 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:28:54,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183089713] [2025-01-10 00:28:54,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183089713] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:54,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:54,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:28:54,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989577338] [2025-01-10 00:28:54,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:54,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:28:54,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:28:54,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:28:54,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:28:54,565 INFO L87 Difference]: Start difference. First operand 1255 states and 1332 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:57,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:57,044 INFO L93 Difference]: Finished difference Result 1871 states and 2001 transitions. [2025-01-10 00:28:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:28:57,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-01-10 00:28:57,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:57,051 INFO L225 Difference]: With dead ends: 1871 [2025-01-10 00:28:57,052 INFO L226 Difference]: Without dead ends: 1871 [2025-01-10 00:28:57,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:28:57,053 INFO L435 NwaCegarLoop]: 1035 mSDtfsCounter, 657 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:57,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1739 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-10 00:28:57,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2025-01-10 00:28:57,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1462. [2025-01-10 00:28:57,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 837 states have (on average 2.072879330943847) internal successors, (1735), 1455 states have internal predecessors, (1735), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:28:57,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1753 transitions. [2025-01-10 00:28:57,087 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1753 transitions. Word has length 3 [2025-01-10 00:28:57,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:57,088 INFO L471 AbstractCegarLoop]: Abstraction has 1462 states and 1753 transitions. [2025-01-10 00:28:57,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:57,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1753 transitions. [2025-01-10 00:28:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-10 00:28:57,089 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:57,089 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:28:57,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 00:28:57,289 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 [2025-01-10 00:28:57,290 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:28:57,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:57,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1329215633, now seen corresponding path program 1 times [2025-01-10 00:28:57,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:28:57,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [168629340] [2025-01-10 00:28:57,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:57,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:28:57,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:28:57,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:28:57,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 00:28:57,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 00:28:57,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 00:28:57,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:57,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:57,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 00:28:57,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:28:57,434 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 [2025-01-10 00:28:57,507 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2025-01-10 00:28:57,507 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 [2025-01-10 00:28:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:57,598 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:28:57,598 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:28:57,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168629340] [2025-01-10 00:28:57,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168629340] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:57,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:57,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:28:57,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6394957] [2025-01-10 00:28:57,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:57,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:28:57,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:28:57,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:28:57,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:28:57,600 INFO L87 Difference]: Start difference. First operand 1462 states and 1753 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:02,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:02,160 INFO L93 Difference]: Finished difference Result 2772 states and 2971 transitions. [2025-01-10 00:29:02,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:29:02,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-01-10 00:29:02,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:02,169 INFO L225 Difference]: With dead ends: 2772 [2025-01-10 00:29:02,169 INFO L226 Difference]: Without dead ends: 2772 [2025-01-10 00:29:02,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:29:02,170 INFO L435 NwaCegarLoop]: 1280 mSDtfsCounter, 1607 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1617 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:02,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1617 Valid, 2678 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2025-01-10 00:29:02,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states. [2025-01-10 00:29:02,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 1610. [2025-01-10 00:29:02,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 985 states have (on average 2.051776649746193) internal successors, (2021), 1603 states have internal predecessors, (2021), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:02,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2039 transitions. [2025-01-10 00:29:02,210 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2039 transitions. Word has length 8 [2025-01-10 00:29:02,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:02,210 INFO L471 AbstractCegarLoop]: Abstraction has 1610 states and 2039 transitions. [2025-01-10 00:29:02,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:02,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2039 transitions. [2025-01-10 00:29:02,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:29:02,211 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:02,211 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:29:02,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 00:29:02,416 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 [2025-01-10 00:29:02,416 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:02,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:02,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988334, now seen corresponding path program 1 times [2025-01-10 00:29:02,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:02,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978203866] [2025-01-10 00:29:02,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:02,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:02,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:02,419 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) [2025-01-10 00:29:02,420 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 [2025-01-10 00:29:02,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:29:02,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:29:02,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:02,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:02,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:29:02,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:02,557 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 [2025-01-10 00:29:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:02,569 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:02,569 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:02,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978203866] [2025-01-10 00:29:02,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978203866] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:02,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:02,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:29:02,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811557] [2025-01-10 00:29:02,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:02,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:29:02,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:02,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:29:02,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:29:02,570 INFO L87 Difference]: Start difference. First operand 1610 states and 2039 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:04,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:04,156 INFO L93 Difference]: Finished difference Result 2143 states and 2798 transitions. [2025-01-10 00:29:04,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:29:04,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-10 00:29:04,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:04,163 INFO L225 Difference]: With dead ends: 2143 [2025-01-10 00:29:04,163 INFO L226 Difference]: Without dead ends: 2143 [2025-01-10 00:29:04,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:29:04,164 INFO L435 NwaCegarLoop]: 1187 mSDtfsCounter, 946 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:04,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 1541 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-10 00:29:04,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2025-01-10 00:29:04,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 1561. [2025-01-10 00:29:04,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 985 states have (on average 1.9908629441624366) internal successors, (1961), 1554 states have internal predecessors, (1961), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:04,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 1979 transitions. [2025-01-10 00:29:04,197 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 1979 transitions. Word has length 9 [2025-01-10 00:29:04,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:04,197 INFO L471 AbstractCegarLoop]: Abstraction has 1561 states and 1979 transitions. [2025-01-10 00:29:04,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:04,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 1979 transitions. [2025-01-10 00:29:04,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:29:04,198 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:04,198 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:29:04,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 00:29:04,398 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 [2025-01-10 00:29:04,398 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:04,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:04,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988333, now seen corresponding path program 1 times [2025-01-10 00:29:04,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:04,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1701396165] [2025-01-10 00:29:04,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:04,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:04,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:04,401 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) [2025-01-10 00:29:04,402 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 [2025-01-10 00:29:04,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:29:04,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:29:04,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:04,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:04,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:29:04,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:04,531 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 [2025-01-10 00:29:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:04,550 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:04,550 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:04,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701396165] [2025-01-10 00:29:04,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701396165] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:04,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:04,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:29:04,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938734909] [2025-01-10 00:29:04,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:04,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:29:04,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:04,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:29:04,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:29:04,551 INFO L87 Difference]: Start difference. First operand 1561 states and 1979 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:06,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:06,784 INFO L93 Difference]: Finished difference Result 2249 states and 2903 transitions. [2025-01-10 00:29:06,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:29:06,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-10 00:29:06,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:06,792 INFO L225 Difference]: With dead ends: 2249 [2025-01-10 00:29:06,792 INFO L226 Difference]: Without dead ends: 2249 [2025-01-10 00:29:06,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:29:06,793 INFO L435 NwaCegarLoop]: 1379 mSDtfsCounter, 701 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:06,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 1926 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-01-10 00:29:06,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2025-01-10 00:29:06,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 1588. [2025-01-10 00:29:06,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1022 states have (on average 1.9706457925636007) internal successors, (2014), 1581 states have internal predecessors, (2014), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:06,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 2032 transitions. [2025-01-10 00:29:06,826 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 2032 transitions. Word has length 9 [2025-01-10 00:29:06,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:06,827 INFO L471 AbstractCegarLoop]: Abstraction has 1588 states and 2032 transitions. [2025-01-10 00:29:06,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:06,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 2032 transitions. [2025-01-10 00:29:06,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-10 00:29:06,827 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:06,828 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:29:06,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 00:29:07,032 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 [2025-01-10 00:29:07,032 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr519REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:07,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:07,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1637394180, now seen corresponding path program 1 times [2025-01-10 00:29:07,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:07,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [85083490] [2025-01-10 00:29:07,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:07,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:07,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:07,036 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) [2025-01-10 00:29:07,038 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 [2025-01-10 00:29:07,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 00:29:07,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 00:29:07,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:07,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:07,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 00:29:07,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:07,242 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:07,242 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:07,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85083490] [2025-01-10 00:29:07,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85083490] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:07,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:07,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:29:07,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727010188] [2025-01-10 00:29:07,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:07,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:29:07,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:07,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:29:07,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:29:07,243 INFO L87 Difference]: Start difference. First operand 1588 states and 2032 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:08,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:08,100 INFO L93 Difference]: Finished difference Result 2199 states and 2777 transitions. [2025-01-10 00:29:08,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:29:08,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2025-01-10 00:29:08,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:08,107 INFO L225 Difference]: With dead ends: 2199 [2025-01-10 00:29:08,107 INFO L226 Difference]: Without dead ends: 2199 [2025-01-10 00:29:08,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:29:08,109 INFO L435 NwaCegarLoop]: 1402 mSDtfsCounter, 634 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:08,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 3836 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-10 00:29:08,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2025-01-10 00:29:08,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 1839. [2025-01-10 00:29:08,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1273 states have (on average 1.98114689709348) internal successors, (2522), 1832 states have internal predecessors, (2522), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:08,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2540 transitions. [2025-01-10 00:29:08,148 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2540 transitions. Word has length 11 [2025-01-10 00:29:08,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:08,148 INFO L471 AbstractCegarLoop]: Abstraction has 1839 states and 2540 transitions. [2025-01-10 00:29:08,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:08,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2540 transitions. [2025-01-10 00:29:08,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 00:29:08,149 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:08,149 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:29:08,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 00:29:08,352 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 [2025-01-10 00:29:08,352 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr330REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:08,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:08,353 INFO L85 PathProgramCache]: Analyzing trace with hash 866873660, now seen corresponding path program 1 times [2025-01-10 00:29:08,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:08,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505142297] [2025-01-10 00:29:08,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:08,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:08,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:08,355 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) [2025-01-10 00:29:08,357 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 [2025-01-10 00:29:08,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:29:08,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:29:08,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:08,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:08,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:29:08,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:08,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:08,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:08,523 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:08,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505142297] [2025-01-10 00:29:08,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505142297] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:08,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:08,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:29:08,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577544402] [2025-01-10 00:29:08,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:08,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:29:08,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:08,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:29:08,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:29:08,525 INFO L87 Difference]: Start difference. First operand 1839 states and 2540 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:10,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:10,667 INFO L93 Difference]: Finished difference Result 2023 states and 2667 transitions. [2025-01-10 00:29:10,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:29:10,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2025-01-10 00:29:10,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:10,672 INFO L225 Difference]: With dead ends: 2023 [2025-01-10 00:29:10,672 INFO L226 Difference]: Without dead ends: 2023 [2025-01-10 00:29:10,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:29:10,673 INFO L435 NwaCegarLoop]: 727 mSDtfsCounter, 1163 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:10,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1498 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-01-10 00:29:10,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2025-01-10 00:29:10,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1816. [2025-01-10 00:29:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1816 states, 1273 states have (on average 1.908876669285153) internal successors, (2430), 1809 states have internal predecessors, (2430), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:10,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 2448 transitions. [2025-01-10 00:29:10,707 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 2448 transitions. Word has length 13 [2025-01-10 00:29:10,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:10,708 INFO L471 AbstractCegarLoop]: Abstraction has 1816 states and 2448 transitions. [2025-01-10 00:29:10,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:10,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 2448 transitions. [2025-01-10 00:29:10,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 00:29:10,708 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:10,708 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:29:10,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-10 00:29:10,913 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 [2025-01-10 00:29:10,913 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr331REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:10,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:10,913 INFO L85 PathProgramCache]: Analyzing trace with hash 866873661, now seen corresponding path program 1 times [2025-01-10 00:29:10,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:10,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2070758778] [2025-01-10 00:29:10,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:10,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:10,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:10,915 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) [2025-01-10 00:29:10,916 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 [2025-01-10 00:29:11,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:29:11,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:29:11,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:11,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:11,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 00:29:11,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:11,074 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 [2025-01-10 00:29:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:11,162 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:11,163 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:11,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070758778] [2025-01-10 00:29:11,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070758778] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:11,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:11,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:29:11,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351685918] [2025-01-10 00:29:11,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:11,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:29:11,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:11,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:29:11,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:29:11,165 INFO L87 Difference]: Start difference. First operand 1816 states and 2448 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:13,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:13,753 INFO L93 Difference]: Finished difference Result 2159 states and 2622 transitions. [2025-01-10 00:29:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:29:13,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2025-01-10 00:29:13,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:13,759 INFO L225 Difference]: With dead ends: 2159 [2025-01-10 00:29:13,759 INFO L226 Difference]: Without dead ends: 2159 [2025-01-10 00:29:13,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:29:13,759 INFO L435 NwaCegarLoop]: 982 mSDtfsCounter, 633 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:13,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 2240 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-01-10 00:29:13,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2159 states. [2025-01-10 00:29:13,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2159 to 1765. [2025-01-10 00:29:13,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1222 states have (on average 1.909165302782324) internal successors, (2333), 1758 states have internal predecessors, (2333), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:13,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2351 transitions. [2025-01-10 00:29:13,787 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2351 transitions. Word has length 13 [2025-01-10 00:29:13,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:13,787 INFO L471 AbstractCegarLoop]: Abstraction has 1765 states and 2351 transitions. [2025-01-10 00:29:13,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:13,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2351 transitions. [2025-01-10 00:29:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-10 00:29:13,788 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:13,788 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:29:13,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-10 00:29:13,988 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 [2025-01-10 00:29:13,989 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr355REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:13,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:13,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1103335316, now seen corresponding path program 1 times [2025-01-10 00:29:13,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:13,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1366426364] [2025-01-10 00:29:13,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:13,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:13,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:13,995 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) [2025-01-10 00:29:13,997 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 [2025-01-10 00:29:14,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 00:29:14,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 00:29:14,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:14,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:14,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:29:14,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:14,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:14,146 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:14,146 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:14,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366426364] [2025-01-10 00:29:14,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366426364] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:14,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:14,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:29:14,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623447949] [2025-01-10 00:29:14,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:14,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:29:14,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:14,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:29:14,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:29:14,147 INFO L87 Difference]: Start difference. First operand 1765 states and 2351 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2025-01-10 00:29:14,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:14,231 INFO L93 Difference]: Finished difference Result 1693 states and 2228 transitions. [2025-01-10 00:29:14,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:29:14,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 [2025-01-10 00:29:14,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:14,235 INFO L225 Difference]: With dead ends: 1693 [2025-01-10 00:29:14,235 INFO L226 Difference]: Without dead ends: 1693 [2025-01-10 00:29:14,235 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 [2025-01-10 00:29:14,235 INFO L435 NwaCegarLoop]: 1160 mSDtfsCounter, 45 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3457 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:14,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3457 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 00:29:14,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2025-01-10 00:29:14,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1693. [2025-01-10 00:29:14,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1169 states have (on average 1.8905047048759624) internal successors, (2210), 1686 states have internal predecessors, (2210), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:14,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2228 transitions. [2025-01-10 00:29:14,257 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2228 transitions. Word has length 14 [2025-01-10 00:29:14,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:14,258 INFO L471 AbstractCegarLoop]: Abstraction has 1693 states and 2228 transitions. [2025-01-10 00:29:14,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:14,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2228 transitions. [2025-01-10 00:29:14,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-10 00:29:14,259 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:14,259 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:29:14,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-10 00:29:14,462 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 [2025-01-10 00:29:14,463 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr630ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:14,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:14,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1713162987, now seen corresponding path program 1 times [2025-01-10 00:29:14,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:14,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27625676] [2025-01-10 00:29:14,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:14,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:14,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:14,465 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) [2025-01-10 00:29:14,466 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 [2025-01-10 00:29:14,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 00:29:14,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 00:29:14,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:14,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:14,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 00:29:14,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:14,609 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:29:14,610 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:29:14,610 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:29:14,612 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 [2025-01-10 00:29:14,657 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-10 00:29:14,657 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 [2025-01-10 00:29:14,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:14,671 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:14,671 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:14,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27625676] [2025-01-10 00:29:14,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27625676] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:14,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:14,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:29:14,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380073814] [2025-01-10 00:29:14,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:14,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:29:14,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:14,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:29:14,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:29:14,672 INFO L87 Difference]: Start difference. First operand 1693 states and 2228 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2025-01-10 00:29:14,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:14,923 INFO L93 Difference]: Finished difference Result 2432 states and 2823 transitions. [2025-01-10 00:29:14,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:29:14,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 [2025-01-10 00:29:14,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:14,929 INFO L225 Difference]: With dead ends: 2432 [2025-01-10 00:29:14,929 INFO L226 Difference]: Without dead ends: 2432 [2025-01-10 00:29:14,929 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 [2025-01-10 00:29:14,929 INFO L435 NwaCegarLoop]: 1373 mSDtfsCounter, 1089 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 3883 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:14,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 3883 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 00:29:14,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2025-01-10 00:29:14,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 1384. [2025-01-10 00:29:14,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 860 states have (on average 1.905813953488372) internal successors, (1639), 1377 states have internal predecessors, (1639), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:14,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1657 transitions. [2025-01-10 00:29:14,950 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1657 transitions. Word has length 14 [2025-01-10 00:29:14,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:14,950 INFO L471 AbstractCegarLoop]: Abstraction has 1384 states and 1657 transitions. [2025-01-10 00:29:14,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:14,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1657 transitions. [2025-01-10 00:29:14,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-10 00:29:14,951 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:14,951 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:29:14,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-10 00:29:15,151 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 [2025-01-10 00:29:15,152 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:15,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:15,152 INFO L85 PathProgramCache]: Analyzing trace with hash 495194974, now seen corresponding path program 1 times [2025-01-10 00:29:15,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:15,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818957449] [2025-01-10 00:29:15,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:15,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:15,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:15,156 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) [2025-01-10 00:29:15,158 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 [2025-01-10 00:29:15,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:29:15,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:29:15,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:15,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:15,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:29:15,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:15,335 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 [2025-01-10 00:29:15,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:15,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:15,377 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:15,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818957449] [2025-01-10 00:29:15,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818957449] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:15,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:15,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:29:15,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045761266] [2025-01-10 00:29:15,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:15,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:29:15,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:15,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:29:15,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:29:15,378 INFO L87 Difference]: Start difference. First operand 1384 states and 1657 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:17,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:17,249 INFO L93 Difference]: Finished difference Result 1758 states and 2125 transitions. [2025-01-10 00:29:17,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:29:17,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2025-01-10 00:29:17,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:17,253 INFO L225 Difference]: With dead ends: 1758 [2025-01-10 00:29:17,253 INFO L226 Difference]: Without dead ends: 1758 [2025-01-10 00:29:17,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:29:17,253 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 910 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:17,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 1566 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-01-10 00:29:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2025-01-10 00:29:17,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1361. [2025-01-10 00:29:17,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 860 states have (on average 1.8523255813953488) internal successors, (1593), 1354 states have internal predecessors, (1593), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:17,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1611 transitions. [2025-01-10 00:29:17,266 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1611 transitions. Word has length 19 [2025-01-10 00:29:17,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:17,267 INFO L471 AbstractCegarLoop]: Abstraction has 1361 states and 1611 transitions. [2025-01-10 00:29:17,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:17,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1611 transitions. [2025-01-10 00:29:17,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-10 00:29:17,267 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:17,268 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:29:17,281 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 [2025-01-10 00:29:17,468 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 [2025-01-10 00:29:17,468 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:17,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:17,469 INFO L85 PathProgramCache]: Analyzing trace with hash 495194975, now seen corresponding path program 1 times [2025-01-10 00:29:17,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:17,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1566270253] [2025-01-10 00:29:17,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:17,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:17,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:17,471 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) [2025-01-10 00:29:17,473 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 [2025-01-10 00:29:17,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:29:17,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:29:17,617 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:17,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:17,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 00:29:17,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:17,630 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 [2025-01-10 00:29:17,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:17,720 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:17,720 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:17,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566270253] [2025-01-10 00:29:17,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566270253] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:17,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:17,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:29:17,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891444355] [2025-01-10 00:29:17,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:17,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:29:17,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:17,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:29:17,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:29:17,722 INFO L87 Difference]: Start difference. First operand 1361 states and 1611 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:20,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:20,273 INFO L93 Difference]: Finished difference Result 2005 states and 2376 transitions. [2025-01-10 00:29:20,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:29:20,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2025-01-10 00:29:20,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:20,279 INFO L225 Difference]: With dead ends: 2005 [2025-01-10 00:29:20,279 INFO L226 Difference]: Without dead ends: 2005 [2025-01-10 00:29:20,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:29:20,279 INFO L435 NwaCegarLoop]: 1318 mSDtfsCounter, 738 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 1532 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:20,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 2661 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1532 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-01-10 00:29:20,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2025-01-10 00:29:20,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1475. [2025-01-10 00:29:20,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 974 states have (on average 1.7772073921971252) internal successors, (1731), 1468 states have internal predecessors, (1731), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:20,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1749 transitions. [2025-01-10 00:29:20,296 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1749 transitions. Word has length 19 [2025-01-10 00:29:20,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:20,297 INFO L471 AbstractCegarLoop]: Abstraction has 1475 states and 1749 transitions. [2025-01-10 00:29:20,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:20,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1749 transitions. [2025-01-10 00:29:20,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-01-10 00:29:20,298 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:20,298 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:29:20,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-10 00:29:20,498 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 [2025-01-10 00:29:20,499 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:20,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:20,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1533079263, now seen corresponding path program 1 times [2025-01-10 00:29:20,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:20,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1115053692] [2025-01-10 00:29:20,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:20,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:20,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:20,502 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) [2025-01-10 00:29:20,502 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 [2025-01-10 00:29:20,630 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-10 00:29:20,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-10 00:29:20,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:20,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:20,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 00:29:20,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:20,725 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 [2025-01-10 00:29:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:20,934 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:29:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:21,344 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:21,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115053692] [2025-01-10 00:29:21,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115053692] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:29:21,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:29:21,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-01-10 00:29:21,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290250153] [2025-01-10 00:29:21,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:29:21,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:29:21,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:21,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:29:21,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:29:21,346 INFO L87 Difference]: Start difference. First operand 1475 states and 1749 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:28,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:28,687 INFO L93 Difference]: Finished difference Result 2361 states and 2866 transitions. [2025-01-10 00:29:28,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:29:28,688 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2025-01-10 00:29:28,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:28,694 INFO L225 Difference]: With dead ends: 2361 [2025-01-10 00:29:28,694 INFO L226 Difference]: Without dead ends: 2361 [2025-01-10 00:29:28,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2025-01-10 00:29:28,695 INFO L435 NwaCegarLoop]: 1345 mSDtfsCounter, 2212 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 3123 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 4413 SdHoareTripleChecker+Invalid, 3150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:28,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2213 Valid, 4413 Invalid, 3150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3123 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2025-01-10 00:29:28,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2025-01-10 00:29:28,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 1639. [2025-01-10 00:29:28,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1138 states have (on average 1.7249560632688927) internal successors, (1963), 1632 states have internal predecessors, (1963), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:28,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 1981 transitions. [2025-01-10 00:29:28,724 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 1981 transitions. Word has length 38 [2025-01-10 00:29:28,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:28,725 INFO L471 AbstractCegarLoop]: Abstraction has 1639 states and 1981 transitions. [2025-01-10 00:29:28,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:29:28,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 1981 transitions. [2025-01-10 00:29:28,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-01-10 00:29:28,729 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:28,729 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] [2025-01-10 00:29:28,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-10 00:29:28,930 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 [2025-01-10 00:29:28,930 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:28,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:28,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1285204927, now seen corresponding path program 1 times [2025-01-10 00:29:28,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:28,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1734826360] [2025-01-10 00:29:28,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:28,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:28,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:28,935 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) [2025-01-10 00:29:28,936 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 [2025-01-10 00:29:29,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-01-10 00:29:29,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-01-10 00:29:29,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:29,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:29,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:29:29,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:29,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:29,184 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:29,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734826360] [2025-01-10 00:29:29,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734826360] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:29,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:29,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:29:29,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020690681] [2025-01-10 00:29:29,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:29,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:29:29,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:29,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:29:29,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:29:29,186 INFO L87 Difference]: Start difference. First operand 1639 states and 1981 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) [2025-01-10 00:29:29,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:29,267 INFO L93 Difference]: Finished difference Result 1328 states and 1545 transitions. [2025-01-10 00:29:29,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:29:29,268 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 [2025-01-10 00:29:29,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:29,271 INFO L225 Difference]: With dead ends: 1328 [2025-01-10 00:29:29,271 INFO L226 Difference]: Without dead ends: 1328 [2025-01-10 00:29:29,275 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 [2025-01-10 00:29:29,275 INFO L435 NwaCegarLoop]: 1097 mSDtfsCounter, 56 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3218 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 [2025-01-10 00:29:29,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3218 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 00:29:29,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2025-01-10 00:29:29,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1326. [2025-01-10 00:29:29,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 848 states have (on average 1.7983490566037736) internal successors, (1525), 1319 states have internal predecessors, (1525), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:29,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1543 transitions. [2025-01-10 00:29:29,293 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1543 transitions. Word has length 53 [2025-01-10 00:29:29,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:29,293 INFO L471 AbstractCegarLoop]: Abstraction has 1326 states and 1543 transitions. [2025-01-10 00:29:29,293 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) [2025-01-10 00:29:29,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1543 transitions. [2025-01-10 00:29:29,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-01-10 00:29:29,294 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:29,294 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] [2025-01-10 00:29:29,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-01-10 00:29:29,494 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 [2025-01-10 00:29:29,495 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:29,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:29,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2035150733, now seen corresponding path program 1 times [2025-01-10 00:29:29,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:29,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827414481] [2025-01-10 00:29:29,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:29,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:29,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:29,498 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) [2025-01-10 00:29:29,498 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 [2025-01-10 00:29:29,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-01-10 00:29:29,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-01-10 00:29:29,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:29,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:29,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 00:29:29,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:29,727 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 [2025-01-10 00:29:30,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:29:30,167 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 [2025-01-10 00:29:30,183 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-01-10 00:29:30,183 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 [2025-01-10 00:29:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:30,189 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:30,189 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:30,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827414481] [2025-01-10 00:29:30,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827414481] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:30,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:30,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:29:30,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949643345] [2025-01-10 00:29:30,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:30,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:29:30,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:30,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:29:30,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:29:30,191 INFO L87 Difference]: Start difference. First operand 1326 states and 1543 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) [2025-01-10 00:29:32,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:32,654 INFO L93 Difference]: Finished difference Result 1677 states and 2011 transitions. [2025-01-10 00:29:32,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:29:32,655 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 [2025-01-10 00:29:32,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:32,658 INFO L225 Difference]: With dead ends: 1677 [2025-01-10 00:29:32,658 INFO L226 Difference]: Without dead ends: 1677 [2025-01-10 00:29:32,658 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 [2025-01-10 00:29:32,659 INFO L435 NwaCegarLoop]: 548 mSDtfsCounter, 1132 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1717 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:32,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 1279 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1717 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-10 00:29:32,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2025-01-10 00:29:32,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1251. [2025-01-10 00:29:32,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 811 states have (on average 1.7422934648581998) internal successors, (1413), 1244 states have internal predecessors, (1413), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:32,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1431 transitions. [2025-01-10 00:29:32,670 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1431 transitions. Word has length 61 [2025-01-10 00:29:32,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:32,671 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 1431 transitions. [2025-01-10 00:29:32,671 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) [2025-01-10 00:29:32,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1431 transitions. [2025-01-10 00:29:32,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-01-10 00:29:32,671 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:32,671 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] [2025-01-10 00:29:32,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-01-10 00:29:32,872 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 [2025-01-10 00:29:32,872 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:32,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:32,872 INFO L85 PathProgramCache]: Analyzing trace with hash -107720446, now seen corresponding path program 1 times [2025-01-10 00:29:32,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:32,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1210261107] [2025-01-10 00:29:32,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:32,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:32,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:32,875 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) [2025-01-10 00:29:32,876 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 [2025-01-10 00:29:33,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-10 00:29:33,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-10 00:29:33,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:33,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:33,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 00:29:33,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:33,127 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 [2025-01-10 00:29:33,139 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 [2025-01-10 00:29:33,161 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 [2025-01-10 00:29:33,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:33,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:33,172 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:33,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210261107] [2025-01-10 00:29:33,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210261107] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:33,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:33,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:29:33,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484690991] [2025-01-10 00:29:33,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:33,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:29:33,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:33,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:29:33,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:29:33,173 INFO L87 Difference]: Start difference. First operand 1251 states and 1431 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) [2025-01-10 00:29:34,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:34,959 INFO L93 Difference]: Finished difference Result 1250 states and 1430 transitions. [2025-01-10 00:29:34,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:29:34,960 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 [2025-01-10 00:29:34,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:34,962 INFO L225 Difference]: With dead ends: 1250 [2025-01-10 00:29:34,962 INFO L226 Difference]: Without dead ends: 1250 [2025-01-10 00:29:34,962 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 [2025-01-10 00:29:34,963 INFO L435 NwaCegarLoop]: 1069 mSDtfsCounter, 2 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2797 SdHoareTripleChecker+Invalid, 1487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:34,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2797 Invalid, 1487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-01-10 00:29:34,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2025-01-10 00:29:34,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2025-01-10 00:29:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 811 states have (on average 1.7410604192355117) internal successors, (1412), 1243 states have internal predecessors, (1412), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:34,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1430 transitions. [2025-01-10 00:29:34,972 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1430 transitions. Word has length 66 [2025-01-10 00:29:34,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:34,972 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1430 transitions. [2025-01-10 00:29:34,973 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) [2025-01-10 00:29:34,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1430 transitions. [2025-01-10 00:29:34,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-01-10 00:29:34,973 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:34,973 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] [2025-01-10 00:29:34,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-01-10 00:29:35,173 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 [2025-01-10 00:29:35,174 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:35,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:35,174 INFO L85 PathProgramCache]: Analyzing trace with hash -107720445, now seen corresponding path program 1 times [2025-01-10 00:29:35,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:35,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641186623] [2025-01-10 00:29:35,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:35,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:35,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:35,178 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) [2025-01-10 00:29:35,180 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 [2025-01-10 00:29:35,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-10 00:29:35,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-10 00:29:35,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:35,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:35,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 00:29:35,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:35,418 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 [2025-01-10 00:29:35,432 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 [2025-01-10 00:29:35,438 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 [2025-01-10 00:29:35,464 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 [2025-01-10 00:29:35,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:35,475 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:35,475 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:35,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641186623] [2025-01-10 00:29:35,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641186623] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:35,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:35,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:29:35,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476511727] [2025-01-10 00:29:35,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:35,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:29:35,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:35,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:29:35,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:29:35,476 INFO L87 Difference]: Start difference. First operand 1250 states and 1430 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) [2025-01-10 00:29:37,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:37,512 INFO L93 Difference]: Finished difference Result 1249 states and 1429 transitions. [2025-01-10 00:29:37,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:29:37,513 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 [2025-01-10 00:29:37,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:37,515 INFO L225 Difference]: With dead ends: 1249 [2025-01-10 00:29:37,515 INFO L226 Difference]: Without dead ends: 1249 [2025-01-10 00:29:37,515 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 [2025-01-10 00:29:37,515 INFO L435 NwaCegarLoop]: 1069 mSDtfsCounter, 1 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:37,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2801 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-01-10 00:29:37,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2025-01-10 00:29:37,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1249. [2025-01-10 00:29:37,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 810 states have (on average 1.7419753086419754) internal successors, (1411), 1242 states have internal predecessors, (1411), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-10 00:29:37,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1429 transitions. [2025-01-10 00:29:37,527 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1429 transitions. Word has length 66 [2025-01-10 00:29:37,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:37,527 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1429 transitions. [2025-01-10 00:29:37,528 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) [2025-01-10 00:29:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1429 transitions. [2025-01-10 00:29:37,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-10 00:29:37,528 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:37,528 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] [2025-01-10 00:29:37,542 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 [2025-01-10 00:29:37,729 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 [2025-01-10 00:29:37,729 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:37,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:37,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1070283575, now seen corresponding path program 1 times [2025-01-10 00:29:37,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:37,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2058179759] [2025-01-10 00:29:37,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:37,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:37,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:37,733 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) [2025-01-10 00:29:37,736 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 [2025-01-10 00:29:37,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 00:29:37,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 00:29:37,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:37,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:37,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-10 00:29:37,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:37,969 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 [2025-01-10 00:29:38,034 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 [2025-01-10 00:29:38,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:38,042 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:38,042 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:38,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058179759] [2025-01-10 00:29:38,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058179759] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:38,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:38,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 00:29:38,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679551916] [2025-01-10 00:29:38,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:38,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 00:29:38,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:38,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 00:29:38,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:29:38,044 INFO L87 Difference]: Start difference. First operand 1249 states and 1429 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) [2025-01-10 00:29:40,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:40,262 INFO L93 Difference]: Finished difference Result 1261 states and 1444 transitions. [2025-01-10 00:29:40,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:29:40,262 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 [2025-01-10 00:29:40,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:40,265 INFO L225 Difference]: With dead ends: 1261 [2025-01-10 00:29:40,265 INFO L226 Difference]: Without dead ends: 1261 [2025-01-10 00:29:40,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-01-10 00:29:40,266 INFO L435 NwaCegarLoop]: 1054 mSDtfsCounter, 13 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3860 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:40,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3860 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-01-10 00:29:40,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2025-01-10 00:29:40,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1255. [2025-01-10 00:29:40,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 815 states have (on average 1.7398773006134969) internal successors, (1418), 1247 states have internal predecessors, (1418), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 5 states have call predecessors, (11), 8 states have call successors, (11) [2025-01-10 00:29:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1439 transitions. [2025-01-10 00:29:40,282 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1439 transitions. Word has length 74 [2025-01-10 00:29:40,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:40,283 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1439 transitions. [2025-01-10 00:29:40,283 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) [2025-01-10 00:29:40,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1439 transitions. [2025-01-10 00:29:40,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-10 00:29:40,283 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:40,284 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] [2025-01-10 00:29:40,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-01-10 00:29:40,484 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 [2025-01-10 00:29:40,484 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:40,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:40,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1070283574, now seen corresponding path program 1 times [2025-01-10 00:29:40,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:40,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [106947471] [2025-01-10 00:29:40,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:40,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:40,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:40,487 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) [2025-01-10 00:29:40,488 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 [2025-01-10 00:29:40,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 00:29:40,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 00:29:40,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:40,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:40,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:29:40,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:40,777 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:29:40,777 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:40,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106947471] [2025-01-10 00:29:40,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106947471] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:40,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:40,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:29:40,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375498842] [2025-01-10 00:29:40,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:40,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:29:40,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:40,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:29:40,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:29:40,779 INFO L87 Difference]: Start difference. First operand 1255 states and 1439 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) [2025-01-10 00:29:40,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:40,824 INFO L93 Difference]: Finished difference Result 1252 states and 1433 transitions. [2025-01-10 00:29:40,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:29:40,824 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 [2025-01-10 00:29:40,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:40,827 INFO L225 Difference]: With dead ends: 1252 [2025-01-10 00:29:40,829 INFO L226 Difference]: Without dead ends: 1252 [2025-01-10 00:29:40,829 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 [2025-01-10 00:29:40,830 INFO L435 NwaCegarLoop]: 1069 mSDtfsCounter, 0 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3202 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 [2025-01-10 00:29:40,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3202 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:29:40,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2025-01-10 00:29:40,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1252. [2025-01-10 00:29:40,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 812 states have (on average 1.7413793103448276) internal successors, (1414), 1245 states have internal predecessors, (1414), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-01-10 00:29:40,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1433 transitions. [2025-01-10 00:29:40,856 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1433 transitions. Word has length 74 [2025-01-10 00:29:40,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:40,856 INFO L471 AbstractCegarLoop]: Abstraction has 1252 states and 1433 transitions. [2025-01-10 00:29:40,856 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) [2025-01-10 00:29:40,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1433 transitions. [2025-01-10 00:29:40,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-01-10 00:29:40,857 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:40,857 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] [2025-01-10 00:29:40,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-01-10 00:29:41,057 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 [2025-01-10 00:29:41,058 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:41,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:41,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1876893183, now seen corresponding path program 1 times [2025-01-10 00:29:41,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:41,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [906175682] [2025-01-10 00:29:41,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:41,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:41,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:41,060 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) [2025-01-10 00:29:41,061 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 [2025-01-10 00:29:41,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-01-10 00:29:41,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-01-10 00:29:41,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:41,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:41,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:29:41,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:41,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:41,346 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:29:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:41,418 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:29:41,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906175682] [2025-01-10 00:29:41,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906175682] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:29:41,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:29:41,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-01-10 00:29:41,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784835620] [2025-01-10 00:29:41,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:29:41,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:29:41,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:29:41,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:29:41,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:29:41,422 INFO L87 Difference]: Start difference. First operand 1252 states and 1433 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) [2025-01-10 00:29:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:41,546 INFO L93 Difference]: Finished difference Result 1264 states and 1450 transitions. [2025-01-10 00:29:41,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:29:41,547 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 [2025-01-10 00:29:41,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:41,552 INFO L225 Difference]: With dead ends: 1264 [2025-01-10 00:29:41,552 INFO L226 Difference]: Without dead ends: 1264 [2025-01-10 00:29:41,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-01-10 00:29:41,553 INFO L435 NwaCegarLoop]: 1069 mSDtfsCounter, 8 mSDsluCounter, 2136 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:41,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3205 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 00:29:41,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2025-01-10 00:29:41,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1262. [2025-01-10 00:29:41,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 821 states have (on average 1.7405602923264312) internal successors, (1429), 1254 states have internal predecessors, (1429), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-01-10 00:29:41,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1448 transitions. [2025-01-10 00:29:41,579 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1448 transitions. Word has length 75 [2025-01-10 00:29:41,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:41,579 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 1448 transitions. [2025-01-10 00:29:41,579 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) [2025-01-10 00:29:41,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1448 transitions. [2025-01-10 00:29:41,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-01-10 00:29:41,580 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:41,580 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] [2025-01-10 00:29:41,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-01-10 00:29:41,781 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 [2025-01-10 00:29:41,781 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-01-10 00:29:41,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:41,781 INFO L85 PathProgramCache]: Analyzing trace with hash -2070126007, now seen corresponding path program 2 times [2025-01-10 00:29:41,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:29:41,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [212880743] [2025-01-10 00:29:41,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:29:41,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:41,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:41,784 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) [2025-01-10 00:29:41,784 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 [2025-01-10 00:29:41,962 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes.