./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.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_OAT_test8-2.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 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:26:12,128 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:26:12,185 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 00:26:12,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:26:12,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:26:12,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:26:12,216 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:26:12,216 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:26:12,217 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:26:12,217 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:26:12,217 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:26:12,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:26:12,218 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:26:12,218 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:26:12,218 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:26:12,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:26:12,219 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:26:12,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:26:12,219 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:26:12,219 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:26:12,219 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:26:12,219 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:26:12,219 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:26:12,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:26:12,219 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:26:12,220 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:26:12,220 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:26:12,220 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:26:12,220 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:26:12,220 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:26:12,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:26:12,220 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:26:12,220 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:26:12,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:26:12,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:26:12,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:26:12,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:26:12,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:26:12,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:26:12,221 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:26:12,221 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:26:12,221 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:26:12,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:26:12,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:26:12,222 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:26:12,222 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:26:12,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:26:12,222 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 -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2025-01-10 00:26:12,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:26:12,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:26:12,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:26:12,462 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:26:12,463 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:26:12,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2025-01-10 00:26:13,603 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1266abcb3/8dba488797da46e282a09d0c2ae50d76/FLAGd81bddcfc [2025-01-10 00:26:13,934 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:26:13,937 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2025-01-10 00:26:13,950 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1266abcb3/8dba488797da46e282a09d0c2ae50d76/FLAGd81bddcfc [2025-01-10 00:26:14,178 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1266abcb3/8dba488797da46e282a09d0c2ae50d76 [2025-01-10 00:26:14,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:26:14,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:26:14,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:26:14,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:26:14,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:26:14,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:26:14" (1/1) ... [2025-01-10 00:26:14,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c47b6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:14, skipping insertion in model container [2025-01-10 00:26:14,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:26:14" (1/1) ... [2025-01-10 00:26:14,218 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:26:14,429 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 00:26:14,451 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:14,453 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:14,456 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 00:26:14,461 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 00:26:14,490 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 00:26:14,490 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 00:26:14,496 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 00:26:14,496 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 00:26:14,498 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 00:26:14,499 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:14,500 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:14,500 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:14,503 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:14,504 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 00:26:14,505 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:14,506 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 00:26:14,506 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 00:26:14,508 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:14,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:26:14,532 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 00:26:14,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@64bd5d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:14, skipping insertion in model container [2025-01-10 00:26:14,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:26:14,533 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-01-10 00:26:14,534 INFO L158 Benchmark]: Toolchain (without parser) took 352.26ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 89.4MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 00:26:14,534 INFO L158 Benchmark]: CDTParser took 0.90ms. Allocated memory is still 201.3MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:26:14,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.63ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 89.4MB in the end (delta: 20.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 00:26:14,535 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90ms. Allocated memory is still 201.3MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.63ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 89.4MB in the end (delta: 20.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 778]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.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 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:26:16,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:26:16,293 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-01-10 00:26:16,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:26:16,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:26:16,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:26:16,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:26:16,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:26:16,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:26:16,331 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:26:16,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:26:16,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:26:16,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:26:16,331 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:26:16,331 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:26:16,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:26:16,332 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:26:16,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:26:16,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:26:16,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:26:16,333 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:26:16,333 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:26:16,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:26:16,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:26:16,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:26:16,333 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-10 00:26:16,333 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-10 00:26:16,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:26:16,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:26:16,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:26:16,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:26:16,333 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 -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2025-01-10 00:26:16,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:26:16,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:26:16,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:26:16,599 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:26:16,599 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:26:16,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2025-01-10 00:26:17,725 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ec240c831/7189ce36b109458b9c0ed28ee086a266/FLAG917229fee [2025-01-10 00:26:17,996 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:26:17,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2025-01-10 00:26:18,014 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ec240c831/7189ce36b109458b9c0ed28ee086a266/FLAG917229fee [2025-01-10 00:26:18,030 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ec240c831/7189ce36b109458b9c0ed28ee086a266 [2025-01-10 00:26:18,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:26:18,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:26:18,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:26:18,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:26:18,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:26:18,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d152d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18, skipping insertion in model container [2025-01-10 00:26:18,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,072 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:26:18,364 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 00:26:18,401 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 00:26:18,407 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 00:26:18,414 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 00:26:18,422 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 00:26:18,463 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:18,463 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:18,465 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 00:26:18,465 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 00:26:18,467 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 00:26:18,472 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:18,473 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 00:26:18,473 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 00:26:18,476 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:18,478 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:18,483 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:18,484 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 00:26:18,487 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:18,493 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:26:18,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:26:18,518 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-10 00:26:18,527 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:26:18,547 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 00:26:18,563 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 00:26:18,567 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 00:26:18,569 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 00:26:18,575 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 00:26:18,596 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 00:26:18,596 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 00:26:18,598 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 00:26:18,598 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 00:26:18,599 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 00:26:18,600 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 00:26:18,600 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 00:26:18,601 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 00:26:18,603 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 00:26:18,604 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 00:26:18,605 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 00:26:18,605 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 00:26:18,605 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 00:26:18,607 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 00:26:18,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:26:18,618 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:26:18,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:26:18,740 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:26:18,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18 WrapperNode [2025-01-10 00:26:18,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:26:18,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:26:18,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:26:18,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:26:18,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,811 INFO L138 Inliner]: procedures = 180, calls = 342, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1155 [2025-01-10 00:26:18,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:26:18,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:26:18,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:26:18,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:26:18,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,906 INFO L175 MemorySlicer]: Split 304 memory accesses to 3 slices as follows [2, 34, 268]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 4, 58]. [2025-01-10 00:26:18,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,942 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:26:18,990 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:26:18,990 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:26:18,990 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:26:18,991 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (1/1) ... [2025-01-10 00:26:18,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:26:19,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:19,015 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 00:26:19,018 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 00:26:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-01-10 00:26:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-01-10 00:26:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-01-10 00:26:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-01-10 00:26:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-01-10 00:26:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-10 00:26:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-10 00:26:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-10 00:26:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-10 00:26:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-10 00:26:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-10 00:26:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-10 00:26:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-10 00:26:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-10 00:26:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-10 00:26:19,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-10 00:26:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2025-01-10 00:26:19,038 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-10 00:26:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-10 00:26:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-10 00:26:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:26:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:26:19,235 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:26:19,237 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:26:19,250 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:26:19,278 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:26:19,296 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:26:22,127 INFO L? ?]: Removed 1321 outVars from TransFormulas that were not future-live. [2025-01-10 00:26:22,128 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:26:22,158 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:26:22,161 INFO L312 CfgBuilder]: Removed 35 assume(true) statements. [2025-01-10 00:26:22,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:26:22 BoogieIcfgContainer [2025-01-10 00:26:22,162 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:26:22,163 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:26:22,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:26:22,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:26:22,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:26:18" (1/3) ... [2025-01-10 00:26:22,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25baed8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:26:22, skipping insertion in model container [2025-01-10 00:26:22,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:26:18" (2/3) ... [2025-01-10 00:26:22,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25baed8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:26:22, skipping insertion in model container [2025-01-10 00:26:22,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:26:22" (3/3) ... [2025-01-10 00:26:22,170 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test8-2.i [2025-01-10 00:26:22,179 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:26:22,180 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test8-2.i that has 7 procedures, 1306 locations, 1 initial locations, 42 loop locations, and 634 error locations. [2025-01-10 00:26:22,226 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:26:22,235 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;@5e226727, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:26:22,235 INFO L334 AbstractCegarLoop]: Starting to check reachability of 634 error locations. [2025-01-10 00:26:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 1296 states, 638 states have (on average 2.227272727272727) internal successors, (1421), 1286 states have internal predecessors, (1421), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 00:26:22,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:26:22,243 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:22,244 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:26:22,244 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:22,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:22,247 INFO L85 PathProgramCache]: Analyzing trace with hash 158947, now seen corresponding path program 1 times [2025-01-10 00:26:22,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:22,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [388797422] [2025-01-10 00:26:22,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:22,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:22,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:22,257 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 00:26:22,258 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 00:26:22,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:26:22,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:26:22,388 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:22,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:22,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:26:22,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:22,436 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 00:26:22,452 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 00:26:22,453 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:22,453 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:22,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388797422] [2025-01-10 00:26:22,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388797422] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:22,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:22,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:26:22,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506703705] [2025-01-10 00:26:22,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:22,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:26:22,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:22,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:26:22,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:26:22,478 INFO L87 Difference]: Start difference. First operand has 1296 states, 638 states have (on average 2.227272727272727) internal successors, (1421), 1286 states have internal predecessors, (1421), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) 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 00:26:23,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:23,884 INFO L93 Difference]: Finished difference Result 1477 states and 1584 transitions. [2025-01-10 00:26:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:26:23,885 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 00:26:23,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:23,899 INFO L225 Difference]: With dead ends: 1477 [2025-01-10 00:26:23,899 INFO L226 Difference]: Without dead ends: 1475 [2025-01-10 00:26:23,901 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 00:26:23,903 INFO L435 NwaCegarLoop]: 819 mSDtfsCounter, 1150 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:23,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 1056 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-10 00:26:23,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2025-01-10 00:26:23,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1285. [2025-01-10 00:26:23,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 643 states have (on average 2.088646967340591) internal successors, (1343), 1274 states have internal predecessors, (1343), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2025-01-10 00:26:23,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1387 transitions. [2025-01-10 00:26:23,977 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1387 transitions. Word has length 3 [2025-01-10 00:26:23,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:23,977 INFO L471 AbstractCegarLoop]: Abstraction has 1285 states and 1387 transitions. [2025-01-10 00:26:23,978 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 00:26:23,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1387 transitions. [2025-01-10 00:26:23,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:26:23,978 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:23,978 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:26:23,985 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 00:26:24,178 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 00:26:24,179 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:24,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:24,180 INFO L85 PathProgramCache]: Analyzing trace with hash 158948, now seen corresponding path program 1 times [2025-01-10 00:26:24,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:24,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045337709] [2025-01-10 00:26:24,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:24,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:24,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:24,182 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 00:26:24,183 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 00:26:24,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:26:24,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:26:24,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:24,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:24,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:26:24,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:24,280 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 00:26:24,291 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 00:26:24,291 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:24,291 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:24,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045337709] [2025-01-10 00:26:24,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045337709] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:24,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:24,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:26:24,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754639767] [2025-01-10 00:26:24,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:24,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:26:24,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:24,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:26:24,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:26:24,294 INFO L87 Difference]: Start difference. First operand 1285 states and 1387 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 00:26:26,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:26,201 INFO L93 Difference]: Finished difference Result 1885 states and 2030 transitions. [2025-01-10 00:26:26,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:26:26,202 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 00:26:26,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:26,208 INFO L225 Difference]: With dead ends: 1885 [2025-01-10 00:26:26,208 INFO L226 Difference]: Without dead ends: 1885 [2025-01-10 00:26:26,208 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 00:26:26,209 INFO L435 NwaCegarLoop]: 1082 mSDtfsCounter, 639 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:26,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 1834 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-01-10 00:26:26,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2025-01-10 00:26:26,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1496. [2025-01-10 00:26:26,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 854 states have (on average 2.0737704918032787) internal successors, (1771), 1484 states have internal predecessors, (1771), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 00:26:26,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1817 transitions. [2025-01-10 00:26:26,245 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1817 transitions. Word has length 3 [2025-01-10 00:26:26,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:26,245 INFO L471 AbstractCegarLoop]: Abstraction has 1496 states and 1817 transitions. [2025-01-10 00:26:26,245 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 00:26:26,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1817 transitions. [2025-01-10 00:26:26,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-10 00:26:26,246 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:26,246 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:26:26,252 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 00:26:26,450 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 00:26:26,450 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:26,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:26,451 INFO L85 PathProgramCache]: Analyzing trace with hash -2043492463, now seen corresponding path program 1 times [2025-01-10 00:26:26,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:26,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [224198446] [2025-01-10 00:26:26,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:26,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:26,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:26,454 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 00:26:26,454 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 00:26:26,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 00:26:26,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 00:26:26,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:26,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:26,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 00:26:26,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:26,562 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 00:26:26,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:26:26,634 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 00:26:26,647 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-01-10 00:26:26,647 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 00:26:26,659 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 00:26:26,659 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:26,659 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:26,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224198446] [2025-01-10 00:26:26,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224198446] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:26,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:26,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:26:26,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923250572] [2025-01-10 00:26:26,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:26,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:26:26,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:26,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:26:26,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:26:26,660 INFO L87 Difference]: Start difference. First operand 1496 states and 1817 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 00:26:28,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:28,587 INFO L93 Difference]: Finished difference Result 1680 states and 2008 transitions. [2025-01-10 00:26:28,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:26:28,587 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 00:26:28,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:28,593 INFO L225 Difference]: With dead ends: 1680 [2025-01-10 00:26:28,593 INFO L226 Difference]: Without dead ends: 1680 [2025-01-10 00:26:28,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:26:28,596 INFO L435 NwaCegarLoop]: 496 mSDtfsCounter, 2597 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2603 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:28,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2603 Valid, 658 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-01-10 00:26:28,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2025-01-10 00:26:28,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1273. [2025-01-10 00:26:28,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1273 states, 643 states have (on average 2.068429237947123) internal successors, (1330), 1262 states have internal predecessors, (1330), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2025-01-10 00:26:28,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1374 transitions. [2025-01-10 00:26:28,623 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1374 transitions. Word has length 8 [2025-01-10 00:26:28,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:28,624 INFO L471 AbstractCegarLoop]: Abstraction has 1273 states and 1374 transitions. [2025-01-10 00:26:28,625 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 00:26:28,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1374 transitions. [2025-01-10 00:26:28,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:26:28,625 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:28,625 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:26:28,635 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 00:26:28,825 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 00:26:28,826 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:28,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:28,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1076243185, now seen corresponding path program 1 times [2025-01-10 00:26:28,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:28,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [550780837] [2025-01-10 00:26:28,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:28,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:28,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:28,829 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 00:26:28,830 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 00:26:28,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:26:28,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:26:28,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:28,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:28,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:26:28,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:28,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-01-10 00:26:28,962 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 00:26:28,962 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:28,962 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:28,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550780837] [2025-01-10 00:26:28,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550780837] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:28,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:28,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:26:28,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337150627] [2025-01-10 00:26:28,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:28,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:26:28,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:28,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:26:28,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:26:28,963 INFO L87 Difference]: Start difference. First operand 1273 states and 1374 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 00:26:30,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:30,775 INFO L93 Difference]: Finished difference Result 1756 states and 1898 transitions. [2025-01-10 00:26:30,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:26:30,776 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 00:26:30,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:30,780 INFO L225 Difference]: With dead ends: 1756 [2025-01-10 00:26:30,781 INFO L226 Difference]: Without dead ends: 1756 [2025-01-10 00:26:30,781 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 00:26:30,781 INFO L435 NwaCegarLoop]: 1452 mSDtfsCounter, 700 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:30,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 2046 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-01-10 00:26:30,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2025-01-10 00:26:30,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1527. [2025-01-10 00:26:30,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 905 states have (on average 2.03646408839779) internal successors, (1843), 1514 states have internal predecessors, (1843), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:26:30,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1891 transitions. [2025-01-10 00:26:30,812 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1891 transitions. Word has length 9 [2025-01-10 00:26:30,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:30,812 INFO L471 AbstractCegarLoop]: Abstraction has 1527 states and 1891 transitions. [2025-01-10 00:26:30,812 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 00:26:30,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1891 transitions. [2025-01-10 00:26:30,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:26:30,813 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:30,813 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:26:30,819 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 00:26:31,013 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 00:26:31,014 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:31,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:31,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1076243184, now seen corresponding path program 1 times [2025-01-10 00:26:31,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:31,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1284633788] [2025-01-10 00:26:31,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:31,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:31,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:31,017 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 00:26:31,018 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 00:26:31,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:26:31,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:26:31,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:31,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:31,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:26:31,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:31,126 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 00:26:31,136 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 00:26:31,136 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:31,136 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:31,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284633788] [2025-01-10 00:26:31,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284633788] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:31,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:31,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:26:31,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492173860] [2025-01-10 00:26:31,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:31,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:26:31,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:31,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:26:31,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:26:31,138 INFO L87 Difference]: Start difference. First operand 1527 states and 1891 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 00:26:32,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:32,279 INFO L93 Difference]: Finished difference Result 1866 states and 2257 transitions. [2025-01-10 00:26:32,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:26:32,279 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 00:26:32,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:32,284 INFO L225 Difference]: With dead ends: 1866 [2025-01-10 00:26:32,284 INFO L226 Difference]: Without dead ends: 1866 [2025-01-10 00:26:32,284 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 00:26:32,285 INFO L435 NwaCegarLoop]: 1218 mSDtfsCounter, 936 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:32,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 1630 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-10 00:26:32,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2025-01-10 00:26:32,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1479. [2025-01-10 00:26:32,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 905 states have (on average 1.9767955801104973) internal successors, (1789), 1466 states have internal predecessors, (1789), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:26:32,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1837 transitions. [2025-01-10 00:26:32,307 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1837 transitions. Word has length 9 [2025-01-10 00:26:32,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:32,308 INFO L471 AbstractCegarLoop]: Abstraction has 1479 states and 1837 transitions. [2025-01-10 00:26:32,308 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 00:26:32,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1837 transitions. [2025-01-10 00:26:32,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-10 00:26:32,308 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:32,308 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:26:32,315 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 00:26:32,508 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 00:26:32,509 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr527REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:32,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:32,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1992197770, now seen corresponding path program 1 times [2025-01-10 00:26:32,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:32,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315068778] [2025-01-10 00:26:32,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:32,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:32,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:32,512 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 00:26:32,513 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 00:26:32,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 00:26:32,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 00:26:32,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:32,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:32,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:26:32,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:32,653 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 00:26:32,653 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:32,653 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:32,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315068778] [2025-01-10 00:26:32,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315068778] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:32,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:32,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:26:32,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298386134] [2025-01-10 00:26:32,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:32,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:26:32,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:32,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:26:32,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:26:32,654 INFO L87 Difference]: Start difference. First operand 1479 states and 1837 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 00:26:32,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:32,905 INFO L93 Difference]: Finished difference Result 2247 states and 2861 transitions. [2025-01-10 00:26:32,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:26:32,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 00:26:32,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:32,912 INFO L225 Difference]: With dead ends: 2247 [2025-01-10 00:26:32,912 INFO L226 Difference]: Without dead ends: 2247 [2025-01-10 00:26:32,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 00:26:32,913 INFO L435 NwaCegarLoop]: 1439 mSDtfsCounter, 632 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:32,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 2622 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 00:26:32,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2025-01-10 00:26:32,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 1886. [2025-01-10 00:26:32,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1886 states, 1310 states have (on average 1.963358778625954) internal successors, (2572), 1871 states have internal predecessors, (2572), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:26:32,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 2624 transitions. [2025-01-10 00:26:32,943 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 2624 transitions. Word has length 11 [2025-01-10 00:26:32,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:32,944 INFO L471 AbstractCegarLoop]: Abstraction has 1886 states and 2624 transitions. [2025-01-10 00:26:32,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 00:26:32,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 2624 transitions. [2025-01-10 00:26:32,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 00:26:32,944 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:32,944 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:26:32,952 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 00:26:33,145 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 00:26:33,145 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr334REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:33,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:33,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1771860198, now seen corresponding path program 1 times [2025-01-10 00:26:33,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:33,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1236857177] [2025-01-10 00:26:33,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:33,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:33,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:33,148 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 00:26:33,150 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 00:26:33,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:26:33,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:26:33,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:33,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:33,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:26:33,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:33,259 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 00:26:33,287 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 00:26:33,287 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:33,287 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:33,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236857177] [2025-01-10 00:26:33,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236857177] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:33,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:33,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:26:33,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302419888] [2025-01-10 00:26:33,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:33,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:26:33,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:33,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:26:33,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:26:33,289 INFO L87 Difference]: Start difference. First operand 1886 states and 2624 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 00:26:34,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:34,676 INFO L93 Difference]: Finished difference Result 2073 states and 2751 transitions. [2025-01-10 00:26:34,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:26:34,677 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 00:26:34,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:34,681 INFO L225 Difference]: With dead ends: 2073 [2025-01-10 00:26:34,682 INFO L226 Difference]: Without dead ends: 2073 [2025-01-10 00:26:34,682 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 00:26:34,682 INFO L435 NwaCegarLoop]: 774 mSDtfsCounter, 1146 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:34,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 1668 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-10 00:26:34,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2025-01-10 00:26:34,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 1863. [2025-01-10 00:26:34,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1863 states, 1310 states have (on average 1.8931297709923665) internal successors, (2480), 1848 states have internal predecessors, (2480), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:26:34,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1863 states to 1863 states and 2532 transitions. [2025-01-10 00:26:34,706 INFO L78 Accepts]: Start accepts. Automaton has 1863 states and 2532 transitions. Word has length 13 [2025-01-10 00:26:34,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:34,707 INFO L471 AbstractCegarLoop]: Abstraction has 1863 states and 2532 transitions. [2025-01-10 00:26:34,707 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 00:26:34,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1863 states and 2532 transitions. [2025-01-10 00:26:34,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 00:26:34,707 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:34,707 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:26:34,715 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 00:26:34,908 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 00:26:34,908 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr335REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:34,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:34,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1771860197, now seen corresponding path program 1 times [2025-01-10 00:26:34,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:34,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1420215179] [2025-01-10 00:26:34,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:34,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:34,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:34,910 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 00:26:34,911 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 00:26:35,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:26:35,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:26:35,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:35,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:35,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 00:26:35,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:35,029 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 00:26:35,080 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 00:26:35,081 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:35,081 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:35,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420215179] [2025-01-10 00:26:35,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420215179] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:35,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:35,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:26:35,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044370058] [2025-01-10 00:26:35,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:35,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:26:35,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:35,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:26:35,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:26:35,082 INFO L87 Difference]: Start difference. First operand 1863 states and 2532 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 00:26:37,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:37,203 INFO L93 Difference]: Finished difference Result 2553 states and 3371 transitions. [2025-01-10 00:26:37,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:26:37,204 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 00:26:37,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:37,209 INFO L225 Difference]: With dead ends: 2553 [2025-01-10 00:26:37,209 INFO L226 Difference]: Without dead ends: 2553 [2025-01-10 00:26:37,209 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 00:26:37,209 INFO L435 NwaCegarLoop]: 1020 mSDtfsCounter, 617 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 2380 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:37,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 2380 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-01-10 00:26:37,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2025-01-10 00:26:37,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 2180. [2025-01-10 00:26:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 1625 states have (on average 1.8953846153846154) internal successors, (3080), 2163 states have internal predecessors, (3080), 29 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (27), 13 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:26:37,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 3136 transitions. [2025-01-10 00:26:37,245 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 3136 transitions. Word has length 13 [2025-01-10 00:26:37,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:37,246 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 3136 transitions. [2025-01-10 00:26:37,246 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 00:26:37,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 3136 transitions. [2025-01-10 00:26:37,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 00:26:37,247 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:37,247 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:26:37,253 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 00:26:37,447 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 00:26:37,448 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr632ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:37,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:37,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1053106644, now seen corresponding path program 1 times [2025-01-10 00:26:37,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:37,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [730329182] [2025-01-10 00:26:37,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:37,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:37,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:37,450 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 00:26:37,451 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 00:26:37,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 00:26:37,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 00:26:37,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:37,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:37,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 00:26:37,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:37,560 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:26:37,560 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:26:37,560 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-10 00:26:37,567 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 00:26:37,608 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-10 00:26:37,608 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 00:26:37,620 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 00:26:37,620 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:37,620 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:37,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730329182] [2025-01-10 00:26:37,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730329182] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:37,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:37,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:26:37,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724767050] [2025-01-10 00:26:37,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:37,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:26:37,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:37,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:26:37,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:26:37,621 INFO L87 Difference]: Start difference. First operand 2180 states and 3136 transitions. Second operand has 4 states, 4 states have (on average 3.25) 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 00:26:37,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:37,965 INFO L93 Difference]: Finished difference Result 3247 states and 4327 transitions. [2025-01-10 00:26:37,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:26:37,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) 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 00:26:37,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:37,973 INFO L225 Difference]: With dead ends: 3247 [2025-01-10 00:26:37,973 INFO L226 Difference]: Without dead ends: 3247 [2025-01-10 00:26:37,973 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 00:26:37,974 INFO L435 NwaCegarLoop]: 1452 mSDtfsCounter, 1138 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 4131 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:37,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 4131 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 00:26:37,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2025-01-10 00:26:37,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 1862. [2025-01-10 00:26:37,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1309 states have (on average 1.893048128342246) internal successors, (2478), 1847 states have internal predecessors, (2478), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:26:38,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2530 transitions. [2025-01-10 00:26:38,000 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2530 transitions. Word has length 13 [2025-01-10 00:26:38,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:38,000 INFO L471 AbstractCegarLoop]: Abstraction has 1862 states and 2530 transitions. [2025-01-10 00:26:38,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) 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 00:26:38,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2530 transitions. [2025-01-10 00:26:38,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-10 00:26:38,001 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:38,001 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 00:26:38,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-10 00:26:38,201 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 00:26:38,201 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:38,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:38,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1644781060, now seen corresponding path program 1 times [2025-01-10 00:26:38,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:38,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984315621] [2025-01-10 00:26:38,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:38,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:38,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:38,204 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 00:26:38,205 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 00:26:38,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:26:38,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:26:38,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:38,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:38,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:26:38,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:38,345 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 00:26:38,345 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:38,345 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:38,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984315621] [2025-01-10 00:26:38,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984315621] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:38,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:38,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:26:38,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131420573] [2025-01-10 00:26:38,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:38,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:26:38,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:38,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:26:38,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:26:38,346 INFO L87 Difference]: Start difference. First operand 1862 states and 2530 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 00:26:39,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:39,686 INFO L93 Difference]: Finished difference Result 1860 states and 2508 transitions. [2025-01-10 00:26:39,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:26:39,687 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 00:26:39,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:39,690 INFO L225 Difference]: With dead ends: 1860 [2025-01-10 00:26:39,690 INFO L226 Difference]: Without dead ends: 1860 [2025-01-10 00:26:39,690 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 00:26:39,691 INFO L435 NwaCegarLoop]: 793 mSDtfsCounter, 961 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:39,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [966 Valid, 1594 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1221 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-10 00:26:39,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2025-01-10 00:26:39,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1839. [2025-01-10 00:26:39,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1309 states have (on average 1.8579067990832696) internal successors, (2432), 1824 states have internal predecessors, (2432), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:26:39,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2484 transitions. [2025-01-10 00:26:39,710 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2484 transitions. Word has length 19 [2025-01-10 00:26:39,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:39,710 INFO L471 AbstractCegarLoop]: Abstraction has 1839 states and 2484 transitions. [2025-01-10 00:26:39,710 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 00:26:39,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2484 transitions. [2025-01-10 00:26:39,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-10 00:26:39,711 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:39,711 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 00:26:39,718 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 00:26:39,911 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 00:26:39,911 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:39,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:39,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1644781059, now seen corresponding path program 1 times [2025-01-10 00:26:39,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:39,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080322734] [2025-01-10 00:26:39,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:39,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:39,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:39,914 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 00:26:39,917 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 00:26:40,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 00:26:40,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 00:26:40,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:40,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:40,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 00:26:40,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:40,042 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 00:26:40,110 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 00:26:40,111 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:40,111 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:40,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080322734] [2025-01-10 00:26:40,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080322734] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:40,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:40,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:26:40,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956962215] [2025-01-10 00:26:40,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:40,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:26:40,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:40,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:26:40,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:26:40,112 INFO L87 Difference]: Start difference. First operand 1839 states and 2484 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 00:26:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:42,353 INFO L93 Difference]: Finished difference Result 2176 states and 2646 transitions. [2025-01-10 00:26:42,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:26:42,355 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 00:26:42,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:42,360 INFO L225 Difference]: With dead ends: 2176 [2025-01-10 00:26:42,360 INFO L226 Difference]: Without dead ends: 2176 [2025-01-10 00:26:42,360 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 00:26:42,361 INFO L435 NwaCegarLoop]: 1445 mSDtfsCounter, 796 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:42,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 2948 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-01-10 00:26:42,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2025-01-10 00:26:42,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 1953. [2025-01-10 00:26:42,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1953 states, 1423 states have (on average 1.8060435699226984) internal successors, (2570), 1938 states have internal predecessors, (2570), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:26:42,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1953 states to 1953 states and 2622 transitions. [2025-01-10 00:26:42,383 INFO L78 Accepts]: Start accepts. Automaton has 1953 states and 2622 transitions. Word has length 19 [2025-01-10 00:26:42,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:42,383 INFO L471 AbstractCegarLoop]: Abstraction has 1953 states and 2622 transitions. [2025-01-10 00:26:42,383 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 00:26:42,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1953 states and 2622 transitions. [2025-01-10 00:26:42,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-01-10 00:26:42,385 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:42,385 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 00:26:42,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-10 00:26:42,585 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 00:26:42,585 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:42,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:42,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1930658273, now seen corresponding path program 1 times [2025-01-10 00:26:42,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:42,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1367260211] [2025-01-10 00:26:42,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:42,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:42,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:42,589 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 00:26:42,590 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 00:26:42,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-01-10 00:26:42,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-01-10 00:26:42,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:42,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:42,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 00:26:42,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:42,777 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 00:26:42,921 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 00:26:42,921 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:26:43,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:26:43,271 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:43,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367260211] [2025-01-10 00:26:43,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367260211] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:26:43,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:26:43,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-01-10 00:26:43,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040856046] [2025-01-10 00:26:43,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:26:43,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:26:43,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:43,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:26:43,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:26:43,272 INFO L87 Difference]: Start difference. First operand 1953 states and 2622 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 00:26:49,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:49,992 INFO L93 Difference]: Finished difference Result 2532 states and 3136 transitions. [2025-01-10 00:26:49,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:26:49,993 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 00:26:49,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:49,999 INFO L225 Difference]: With dead ends: 2532 [2025-01-10 00:26:49,999 INFO L226 Difference]: Without dead ends: 2532 [2025-01-10 00:26:50,000 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 00:26:50,000 INFO L435 NwaCegarLoop]: 1472 mSDtfsCounter, 1445 mSDsluCounter, 3088 mSDsCounter, 0 mSdLazyCounter, 3101 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 4560 SdHoareTripleChecker+Invalid, 3128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:50,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 4560 Invalid, 3128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3101 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2025-01-10 00:26:50,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2025-01-10 00:26:50,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 2117. [2025-01-10 00:26:50,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1587 states have (on average 1.7655954631379962) internal successors, (2802), 2102 states have internal predecessors, (2802), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:26:50,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2854 transitions. [2025-01-10 00:26:50,022 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2854 transitions. Word has length 38 [2025-01-10 00:26:50,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:50,022 INFO L471 AbstractCegarLoop]: Abstraction has 2117 states and 2854 transitions. [2025-01-10 00:26:50,022 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 00:26:50,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2854 transitions. [2025-01-10 00:26:50,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-01-10 00:26:50,025 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:50,025 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 00:26:50,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-01-10 00:26:50,225 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 00:26:50,226 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:50,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:50,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1351001443, now seen corresponding path program 1 times [2025-01-10 00:26:50,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:50,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803231247] [2025-01-10 00:26:50,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:50,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:50,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:50,228 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 00:26:50,229 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 00:26:50,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-01-10 00:26:50,378 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-01-10 00:26:50,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:50,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:50,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:26:50,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:50,420 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 00:26:50,420 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:50,420 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:50,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803231247] [2025-01-10 00:26:50,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803231247] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:50,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:50,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:26:50,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841277400] [2025-01-10 00:26:50,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:50,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:26:50,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:50,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:26:50,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:26:50,421 INFO L87 Difference]: Start difference. First operand 2117 states and 2854 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 00:26:50,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:50,484 INFO L93 Difference]: Finished difference Result 1806 states and 2418 transitions. [2025-01-10 00:26:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:26:50,484 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 00:26:50,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:50,488 INFO L225 Difference]: With dead ends: 1806 [2025-01-10 00:26:50,488 INFO L226 Difference]: Without dead ends: 1806 [2025-01-10 00:26:50,488 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 00:26:50,488 INFO L435 NwaCegarLoop]: 1192 mSDtfsCounter, 56 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3503 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:50,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3503 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:26:50,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states. [2025-01-10 00:26:50,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1804. [2025-01-10 00:26:50,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1297 states have (on average 1.8226676946800309) internal successors, (2364), 1789 states have internal predecessors, (2364), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2025-01-10 00:26:50,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2416 transitions. [2025-01-10 00:26:50,505 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2416 transitions. Word has length 53 [2025-01-10 00:26:50,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:50,505 INFO L471 AbstractCegarLoop]: Abstraction has 1804 states and 2416 transitions. [2025-01-10 00:26:50,506 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 00:26:50,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2416 transitions. [2025-01-10 00:26:50,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-01-10 00:26:50,506 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:50,506 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 00:26:50,515 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 00:26:50,707 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 00:26:50,707 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:50,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:50,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2035519569, now seen corresponding path program 1 times [2025-01-10 00:26:50,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:50,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [783999145] [2025-01-10 00:26:50,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:50,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:50,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:50,711 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 00:26:50,716 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 00:26:50,819 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-01-10 00:26:50,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-01-10 00:26:50,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:50,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:50,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 00:26:50,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:50,905 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 00:26:51,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-01-10 00:26:51,252 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 00:26:51,263 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-01-10 00:26:51,263 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 00:26:51,268 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 00:26:51,268 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:51,268 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:51,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783999145] [2025-01-10 00:26:51,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783999145] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:51,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:51,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:26:51,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069861835] [2025-01-10 00:26:51,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:51,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:26:51,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:51,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:26:51,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:26:51,269 INFO L87 Difference]: Start difference. First operand 1804 states and 2416 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 00:26:53,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:53,160 INFO L93 Difference]: Finished difference Result 1777 states and 2390 transitions. [2025-01-10 00:26:53,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:26:53,160 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 00:26:53,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:53,163 INFO L225 Difference]: With dead ends: 1777 [2025-01-10 00:26:53,163 INFO L226 Difference]: Without dead ends: 1777 [2025-01-10 00:26:53,163 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 00:26:53,164 INFO L435 NwaCegarLoop]: 604 mSDtfsCounter, 872 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:53,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1364 Invalid, 1607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1562 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-01-10 00:26:53,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2025-01-10 00:26:53,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1341. [2025-01-10 00:26:53,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 877 states have (on average 1.7480045610034207) internal successors, (1533), 1329 states have internal predecessors, (1533), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 00:26:53,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1579 transitions. [2025-01-10 00:26:53,176 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1579 transitions. Word has length 61 [2025-01-10 00:26:53,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:53,177 INFO L471 AbstractCegarLoop]: Abstraction has 1341 states and 1579 transitions. [2025-01-10 00:26:53,177 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 00:26:53,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1579 transitions. [2025-01-10 00:26:53,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-01-10 00:26:53,177 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:53,177 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 00:26:53,188 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 00:26:53,378 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 00:26:53,378 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:53,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:53,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1154034494, now seen corresponding path program 1 times [2025-01-10 00:26:53,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:53,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [121654759] [2025-01-10 00:26:53,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:53,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:53,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:53,381 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 00:26:53,381 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 00:26:53,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-10 00:26:53,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-10 00:26:53,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:53,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:53,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 00:26:53,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:53,556 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 00:26:53,566 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 00:26:53,584 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 00:26:53,591 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 00:26:53,591 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:53,591 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:53,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121654759] [2025-01-10 00:26:53,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121654759] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:53,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:53,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:26:53,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572345864] [2025-01-10 00:26:53,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:53,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:26:53,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:53,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:26:53,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:26:53,592 INFO L87 Difference]: Start difference. First operand 1341 states and 1579 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 00:26:55,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:55,211 INFO L93 Difference]: Finished difference Result 1340 states and 1578 transitions. [2025-01-10 00:26:55,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:26:55,212 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 00:26:55,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:55,214 INFO L225 Difference]: With dead ends: 1340 [2025-01-10 00:26:55,214 INFO L226 Difference]: Without dead ends: 1340 [2025-01-10 00:26:55,214 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 00:26:55,215 INFO L435 NwaCegarLoop]: 1162 mSDtfsCounter, 2 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:55,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3109 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-10 00:26:55,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2025-01-10 00:26:55,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2025-01-10 00:26:55,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 877 states have (on average 1.7468643101482326) internal successors, (1532), 1328 states have internal predecessors, (1532), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 00:26:55,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1578 transitions. [2025-01-10 00:26:55,227 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1578 transitions. Word has length 66 [2025-01-10 00:26:55,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:55,228 INFO L471 AbstractCegarLoop]: Abstraction has 1340 states and 1578 transitions. [2025-01-10 00:26:55,228 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 00:26:55,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1578 transitions. [2025-01-10 00:26:55,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-01-10 00:26:55,228 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:55,228 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 00:26:55,237 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 00:26:55,429 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 00:26:55,429 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:55,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:55,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1154034493, now seen corresponding path program 1 times [2025-01-10 00:26:55,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:55,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333627363] [2025-01-10 00:26:55,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:55,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:55,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:55,432 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 00:26:55,433 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 00:26:55,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-10 00:26:55,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-10 00:26:55,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:55,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:55,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 00:26:55,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:55,628 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 00:26:55,639 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 00:26:55,645 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 00:26:55,668 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 00:26:55,678 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 00:26:55,678 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:55,678 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:55,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333627363] [2025-01-10 00:26:55,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333627363] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:55,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:55,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:26:55,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765242737] [2025-01-10 00:26:55,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:55,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:26:55,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:55,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:26:55,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:26:55,679 INFO L87 Difference]: Start difference. First operand 1340 states and 1578 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 00:26:57,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:26:57,729 INFO L93 Difference]: Finished difference Result 1339 states and 1577 transitions. [2025-01-10 00:26:57,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:26:57,730 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 00:26:57,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:26:57,732 INFO L225 Difference]: With dead ends: 1339 [2025-01-10 00:26:57,732 INFO L226 Difference]: Without dead ends: 1339 [2025-01-10 00:26:57,732 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 00:26:57,733 INFO L435 NwaCegarLoop]: 1162 mSDtfsCounter, 1 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:26:57,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3095 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1557 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-01-10 00:26:57,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2025-01-10 00:26:57,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1339. [2025-01-10 00:26:57,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 876 states have (on average 1.7477168949771689) internal successors, (1531), 1327 states have internal predecessors, (1531), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 00:26:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1577 transitions. [2025-01-10 00:26:57,744 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1577 transitions. Word has length 66 [2025-01-10 00:26:57,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:26:57,744 INFO L471 AbstractCegarLoop]: Abstraction has 1339 states and 1577 transitions. [2025-01-10 00:26:57,744 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 00:26:57,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1577 transitions. [2025-01-10 00:26:57,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-10 00:26:57,745 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:26:57,745 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 00:26:57,755 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 00:26:57,945 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 00:26:57,946 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:26:57,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:26:57,946 INFO L85 PathProgramCache]: Analyzing trace with hash 948269993, now seen corresponding path program 1 times [2025-01-10 00:26:57,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:26:57,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [140632539] [2025-01-10 00:26:57,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:26:57,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:26:57,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:26:57,948 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 00:26:57,955 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 00:26:58,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 00:26:58,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 00:26:58,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:26:58,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:26:58,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-10 00:26:58,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:26:58,148 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 00:26:58,196 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 00:26:58,203 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 00:26:58,203 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:26:58,203 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:26:58,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140632539] [2025-01-10 00:26:58,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140632539] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:26:58,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:26:58,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 00:26:58,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353946833] [2025-01-10 00:26:58,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:26:58,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 00:26:58,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:26:58,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 00:26:58,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:26:58,206 INFO L87 Difference]: Start difference. First operand 1339 states and 1577 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 00:27:00,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:27:00,673 INFO L93 Difference]: Finished difference Result 1351 states and 1592 transitions. [2025-01-10 00:27:00,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:27:00,673 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 00:27:00,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:27:00,676 INFO L225 Difference]: With dead ends: 1351 [2025-01-10 00:27:00,676 INFO L226 Difference]: Without dead ends: 1351 [2025-01-10 00:27:00,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-01-10 00:27:00,676 INFO L435 NwaCegarLoop]: 1084 mSDtfsCounter, 61 mSDsluCounter, 3480 mSDsCounter, 0 mSdLazyCounter, 2345 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 4564 SdHoareTripleChecker+Invalid, 2352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:27:00,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 4564 Invalid, 2352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2345 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-10 00:27:00,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2025-01-10 00:27:00,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1345. [2025-01-10 00:27:00,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 881 states have (on average 1.7457434733257662) internal successors, (1538), 1332 states have internal predecessors, (1538), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (25), 9 states have call predecessors, (25), 22 states have call successors, (25) [2025-01-10 00:27:00,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1587 transitions. [2025-01-10 00:27:00,690 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1587 transitions. Word has length 74 [2025-01-10 00:27:00,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:27:00,690 INFO L471 AbstractCegarLoop]: Abstraction has 1345 states and 1587 transitions. [2025-01-10 00:27:00,691 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 00:27:00,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1587 transitions. [2025-01-10 00:27:00,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-10 00:27:00,691 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:27:00,691 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 00:27:00,703 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 00:27:00,892 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 00:27:00,892 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:27:00,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:27:00,892 INFO L85 PathProgramCache]: Analyzing trace with hash 948269994, now seen corresponding path program 1 times [2025-01-10 00:27:00,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:27:00,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694039929] [2025-01-10 00:27:00,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:27:00,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:27:00,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:27:00,894 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 00:27:00,895 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 00:27:01,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 00:27:01,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 00:27:01,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:27:01,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:27:01,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 00:27:01,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:27:01,113 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 00:27:01,114 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 00:27:01,114 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:27:01,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694039929] [2025-01-10 00:27:01,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694039929] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:27:01,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:27:01,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:27:01,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972688667] [2025-01-10 00:27:01,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:27:01,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:27:01,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:27:01,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:27:01,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:27:01,116 INFO L87 Difference]: Start difference. First operand 1345 states and 1587 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 00:27:01,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:27:01,147 INFO L93 Difference]: Finished difference Result 1342 states and 1581 transitions. [2025-01-10 00:27:01,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:27:01,148 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 00:27:01,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:27:01,150 INFO L225 Difference]: With dead ends: 1342 [2025-01-10 00:27:01,151 INFO L226 Difference]: Without dead ends: 1342 [2025-01-10 00:27:01,151 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 00:27:01,151 INFO L435 NwaCegarLoop]: 1162 mSDtfsCounter, 0 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3481 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 00:27:01,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3481 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:27:01,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2025-01-10 00:27:01,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1342. [2025-01-10 00:27:01,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 878 states have (on average 1.7471526195899771) internal successors, (1534), 1330 states have internal predecessors, (1534), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2025-01-10 00:27:01,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1581 transitions. [2025-01-10 00:27:01,163 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1581 transitions. Word has length 74 [2025-01-10 00:27:01,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:27:01,164 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 1581 transitions. [2025-01-10 00:27:01,164 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 00:27:01,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1581 transitions. [2025-01-10 00:27:01,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-01-10 00:27:01,164 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:27:01,164 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 00:27:01,177 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 00:27:01,364 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 00:27:01,365 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:27:01,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:27:01,365 INFO L85 PathProgramCache]: Analyzing trace with hash -38174501, now seen corresponding path program 1 times [2025-01-10 00:27:01,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:27:01,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1944817062] [2025-01-10 00:27:01,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:27:01,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:27:01,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:27:01,367 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 00:27:01,368 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 00:27:01,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-01-10 00:27:01,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-01-10 00:27:01,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:27:01,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:27:01,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 00:27:01,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:27:01,583 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 00:27:01,583 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:27:01,627 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 00:27:01,627 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:27:01,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944817062] [2025-01-10 00:27:01,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944817062] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:27:01,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:27:01,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-01-10 00:27:01,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358991374] [2025-01-10 00:27:01,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:27:01,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 00:27:01,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:27:01,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 00:27:01,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-10 00:27:01,628 INFO L87 Difference]: Start difference. First operand 1342 states and 1581 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 00:27:01,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:27:01,726 INFO L93 Difference]: Finished difference Result 1354 states and 1598 transitions. [2025-01-10 00:27:01,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:27:01,726 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 00:27:01,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:27:01,728 INFO L225 Difference]: With dead ends: 1354 [2025-01-10 00:27:01,728 INFO L226 Difference]: Without dead ends: 1354 [2025-01-10 00:27:01,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-01-10 00:27:01,729 INFO L435 NwaCegarLoop]: 1162 mSDtfsCounter, 8 mSDsluCounter, 3478 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4640 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 00:27:01,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4640 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 00:27:01,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2025-01-10 00:27:01,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1352. [2025-01-10 00:27:01,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 887 states have (on average 1.7463359639233371) internal successors, (1549), 1339 states have internal predecessors, (1549), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2025-01-10 00:27:01,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1596 transitions. [2025-01-10 00:27:01,750 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1596 transitions. Word has length 75 [2025-01-10 00:27:01,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:27:01,750 INFO L471 AbstractCegarLoop]: Abstraction has 1352 states and 1596 transitions. [2025-01-10 00:27:01,750 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 00:27:01,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1596 transitions. [2025-01-10 00:27:01,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-01-10 00:27:01,751 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:27:01,751 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 00:27:01,761 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 00:27:01,955 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 00:27:01,955 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-01-10 00:27:01,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:27:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash -340250583, now seen corresponding path program 2 times [2025-01-10 00:27:01,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 00:27:01,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871647584] [2025-01-10 00:27:01,956 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:27:01,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:27:01,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:27:01,958 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 00:27:01,958 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 00:27:02,086 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-01-10 00:27:48,786 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-01-10 00:27:48,786 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 00:27:48,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:27:48,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 00:27:48,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:27:48,867 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-01-10 00:27:48,868 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 00:27:48,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-10 00:27:48,987 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:27:48,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2025-01-10 00:27:49,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2025-01-10 00:27:49,025 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-10 00:27:49,026 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:27:49,075 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2025-01-10 00:27:49,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2025-01-10 00:27:49,121 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 00:27:49,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871647584] [2025-01-10 00:27:49,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871647584] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:27:49,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [706904654] [2025-01-10 00:27:49,121 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 00:27:49,121 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-01-10 00:27:49,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-01-10 00:27:49,124 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-01-10 00:27:49,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2025-01-10 00:27:49,311 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-01-10 00:27:50,081 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-01-10 00:27:50,081 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 00:27:50,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:27:50,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-10 00:27:50,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:27:50,210 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:27:50,210 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:27:50,364 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:27:50,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [706904654] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 00:27:50,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 00:27:50,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2025-01-10 00:27:50,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476794124] [2025-01-10 00:27:50,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 00:27:50,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-10 00:27:50,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 00:27:50,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-10 00:27:50,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=551, Unknown=8, NotChecked=0, Total=650 [2025-01-10 00:27:50,365 INFO L87 Difference]: Start difference. First operand 1352 states and 1596 transitions. Second operand has 24 states, 23 states have (on average 6.130434782608695) internal successors, (141), 23 states have internal predecessors, (141), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)