./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.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/ldv-memsafety/memleaks_test4-1.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 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 22:29:39,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 22:29:39,832 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-09 22:29:39,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 22:29:39,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 22:29:39,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 22:29:39,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 22:29:39,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 22:29:39,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 22:29:39,851 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 22:29:39,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 22:29:39,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 22:29:39,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 22:29:39,851 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 22:29:39,851 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 22:29:39,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 22:29:39,851 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 22:29:39,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 22:29:39,852 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 22:29:39,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 22:29:39,852 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 22:29:39,852 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 22:29:39,852 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-09 22:29:39,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 22:29:39,852 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 22:29:39,852 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 22:29:39,852 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 22:29:39,852 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 22:29:39,853 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 22:29:39,853 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 22:29:39,853 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:29:39,853 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:29:39,853 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:29:39,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:29:39,853 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 22:29:39,853 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:29:39,853 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:29:39,853 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:29:39,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:29:39,853 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 22:29:39,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 22:29:39,853 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 22:29:39,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 22:29:39,854 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 22:29:39,854 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 22:29:39,854 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 22:29:39,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 22:29:39,854 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 -> 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc [2025-01-09 22:29:40,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 22:29:40,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 22:29:40,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 22:29:40,037 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 22:29:40,037 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 22:29:40,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2025-01-09 22:29:41,181 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8f4027183/4032efd83a3f4d2ea6f0252bb51d66f6/FLAG2a8df3b63 [2025-01-09 22:29:41,455 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 22:29:41,456 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2025-01-09 22:29:41,465 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8f4027183/4032efd83a3f4d2ea6f0252bb51d66f6/FLAG2a8df3b63 [2025-01-09 22:29:41,752 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8f4027183/4032efd83a3f4d2ea6f0252bb51d66f6 [2025-01-09 22:29:41,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 22:29:41,755 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 22:29:41,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 22:29:41,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 22:29:41,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 22:29:41,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:29:41" (1/1) ... [2025-01-09 22:29:41,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333f7a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:41, skipping insertion in model container [2025-01-09 22:29:41,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:29:41" (1/1) ... [2025-01-09 22:29:41,777 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:29:41,982 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:29:42,023 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:29:42,024 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:29:42,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:29:42,038 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) [2025-01-09 22:29:42,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3dbb042a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:42, skipping insertion in model container [2025-01-09 22:29:42,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 22:29:42,040 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-01-09 22:29:42,041 INFO L158 Benchmark]: Toolchain (without parser) took 285.74ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 96.5MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 22:29:42,041 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:29:42,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.24ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 96.5MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 22:29:42,044 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.24ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 96.5MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 607]: 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/ldv-memsafety/memleaks_test4-1.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 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 22:29:43,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 22:29:43,918 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-01-09 22:29:43,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 22:29:43,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 22:29:43,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 22:29:43,946 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 22:29:43,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 22:29:43,947 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 22:29:43,947 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 22:29:43,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 22:29:43,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 22:29:43,948 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 22:29:43,948 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 22:29:43,948 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 22:29:43,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 22:29:43,948 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 22:29:43,949 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 22:29:43,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 22:29:43,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 22:29:43,949 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 22:29:43,949 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 22:29:43,949 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-09 22:29:43,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 22:29:43,949 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 22:29:43,949 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 22:29:43,949 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 22:29:43,949 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 22:29:43,950 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 22:29:43,950 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 22:29:43,950 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 22:29:43,950 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 22:29:43,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:29:43,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:29:43,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:29:43,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:29:43,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 22:29:43,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:29:43,951 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:29:43,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:29:43,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:29:43,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 22:29:43,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 22:29:43,952 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 22:29:43,952 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 22:29:43,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 22:29:43,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 22:29:43,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 22:29:43,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 22:29:43,952 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 -> 9bd23263f414c48e50ed8daa5b2985179bde28a9902b6873b1962b90b4067acc [2025-01-09 22:29:44,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 22:29:44,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 22:29:44,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 22:29:44,179 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 22:29:44,179 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 22:29:44,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2025-01-09 22:29:45,286 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/27356d51c/9eba06af3569422aac217a7e3a85e9fb/FLAG1ab47c2d0 [2025-01-09 22:29:45,531 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 22:29:45,531 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2025-01-09 22:29:45,544 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/27356d51c/9eba06af3569422aac217a7e3a85e9fb/FLAG1ab47c2d0 [2025-01-09 22:29:45,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/27356d51c/9eba06af3569422aac217a7e3a85e9fb [2025-01-09 22:29:45,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 22:29:45,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 22:29:45,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 22:29:45,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 22:29:45,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 22:29:45,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:45,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35fe56f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45, skipping insertion in model container [2025-01-09 22:29:45,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:45,595 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:29:45,793 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:29:45,820 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:29:45,821 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:29:45,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:29:45,836 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-09 22:29:45,843 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:29:45,862 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:29:45,875 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:29:45,876 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:29:45,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:29:45,880 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 22:29:45,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:29:45,954 INFO L204 MainTranslator]: Completed translation [2025-01-09 22:29:45,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45 WrapperNode [2025-01-09 22:29:45,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 22:29:45,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 22:29:45,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 22:29:45,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 22:29:45,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:45,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:45,997 INFO L138 Inliner]: procedures = 165, calls = 70, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 22 [2025-01-09 22:29:45,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 22:29:46,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 22:29:46,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 22:29:46,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 22:29:46,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:46,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:46,009 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:46,024 INFO L175 MemorySlicer]: Split 2 memory accesses to 2 slices as follows [2, 0]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 0 writes are split as follows [0, 0]. [2025-01-09 22:29:46,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:46,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:46,032 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:46,032 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:46,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:46,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:46,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:46,040 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 22:29:46,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 22:29:46,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 22:29:46,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 22:29:46,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (1/1) ... [2025-01-09 22:29:46,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:29:46,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:29:46,067 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) [2025-01-09 22:29:46,071 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 [2025-01-09 22:29:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-01-09 22:29:46,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-01-09 22:29:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 22:29:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 22:29:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 22:29:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 22:29:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 22:29:46,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 22:29:46,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 22:29:46,168 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 22:29:46,169 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 22:29:46,242 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2025-01-09 22:29:46,242 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 22:29:46,247 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 22:29:46,247 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 22:29:46,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:29:46 BoogieIcfgContainer [2025-01-09 22:29:46,248 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 22:29:46,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 22:29:46,253 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 22:29:46,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 22:29:46,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 10:29:45" (1/3) ... [2025-01-09 22:29:46,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e12fee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:29:46, skipping insertion in model container [2025-01-09 22:29:46,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:29:45" (2/3) ... [2025-01-09 22:29:46,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e12fee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:29:46, skipping insertion in model container [2025-01-09 22:29:46,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:29:46" (3/3) ... [2025-01-09 22:29:46,260 INFO L128 eAbstractionObserver]: Analyzing ICFG memleaks_test4-1.i [2025-01-09 22:29:46,271 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 22:29:46,273 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG memleaks_test4-1.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-01-09 22:29:46,301 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 22:29:46,310 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;@25904c5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 22:29:46,311 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-09 22:29:46,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 22:29:46,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-09 22:29:46,321 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:29:46,321 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:29:46,321 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-01-09 22:29:46,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:29:46,326 INFO L85 PathProgramCache]: Analyzing trace with hash 810748839, now seen corresponding path program 1 times [2025-01-09 22:29:46,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:29:46,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1968581954] [2025-01-09 22:29:46,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:29:46,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:29:46,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:29:46,336 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) [2025-01-09 22:29:46,338 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 [2025-01-09 22:29:46,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-09 22:29:46,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-09 22:29:46,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:29:46,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:29:46,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 22:29:46,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:29:46,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:29:46,483 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:29:46,483 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:29:46,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968581954] [2025-01-09 22:29:46,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968581954] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:29:46,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:29:46,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 22:29:46,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740837612] [2025-01-09 22:29:46,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:29:46,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 22:29:46,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:29:46,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 22:29:46,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:29:46,500 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-01-09 22:29:46,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:29:46,520 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2025-01-09 22:29:46,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 22:29:46,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2025-01-09 22:29:46,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:29:46,524 INFO L225 Difference]: With dead ends: 26 [2025-01-09 22:29:46,524 INFO L226 Difference]: Without dead ends: 24 [2025-01-09 22:29:46,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:29:46,527 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 22:29:46,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 22:29:46,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-01-09 22:29:46,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-01-09 22:29:46,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 22:29:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2025-01-09 22:29:46,546 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 11 [2025-01-09 22:29:46,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:29:46,546 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2025-01-09 22:29:46,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-01-09 22:29:46,547 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2025-01-09 22:29:46,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-09 22:29:46,548 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:29:46,548 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:29:46,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 22:29:46,752 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 [2025-01-09 22:29:46,752 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-01-09 22:29:46,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:29:46,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1698252520, now seen corresponding path program 1 times [2025-01-09 22:29:46,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:29:46,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [46052068] [2025-01-09 22:29:46,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:29:46,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:29:46,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:29:46,759 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) [2025-01-09 22:29:46,760 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 [2025-01-09 22:29:46,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-09 22:29:46,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-09 22:29:46,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:29:46,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:29:46,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 22:29:46,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:29:46,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:29:46,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:29:46,854 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:29:46,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46052068] [2025-01-09 22:29:46,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46052068] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:29:46,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:29:46,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 22:29:46,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437275597] [2025-01-09 22:29:46,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:29:46,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:29:46,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:29:46,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:29:46,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:29:46,856 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-01-09 22:29:46,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:29:46,892 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2025-01-09 22:29:46,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:29:46,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2025-01-09 22:29:46,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:29:46,893 INFO L225 Difference]: With dead ends: 34 [2025-01-09 22:29:46,893 INFO L226 Difference]: Without dead ends: 32 [2025-01-09 22:29:46,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:29:46,894 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 22:29:46,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 66 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 22:29:46,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-01-09 22:29:46,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 20. [2025-01-09 22:29:46,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 22:29:46,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2025-01-09 22:29:46,897 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 11 [2025-01-09 22:29:46,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:29:46,897 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2025-01-09 22:29:46,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-01-09 22:29:46,897 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2025-01-09 22:29:46,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-01-09 22:29:46,897 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:29:46,897 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:29:46,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 22:29:47,098 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 [2025-01-09 22:29:47,098 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-01-09 22:29:47,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:29:47,098 INFO L85 PathProgramCache]: Analyzing trace with hash 594490405, now seen corresponding path program 1 times [2025-01-09 22:29:47,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:29:47,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1766036916] [2025-01-09 22:29:47,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:29:47,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:29:47,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:29:47,101 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) [2025-01-09 22:29:47,102 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 [2025-01-09 22:29:47,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-09 22:29:47,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-09 22:29:47,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:29:47,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:29:47,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 22:29:47,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:29:47,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 22:29:47,187 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:29:47,187 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:29:47,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766036916] [2025-01-09 22:29:47,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766036916] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:29:47,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:29:47,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:29:47,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763184881] [2025-01-09 22:29:47,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:29:47,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 22:29:47,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:29:47,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 22:29:47,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:29:47,188 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 22:29:47,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:29:47,209 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2025-01-09 22:29:47,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 22:29:47,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2025-01-09 22:29:47,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:29:47,210 INFO L225 Difference]: With dead ends: 19 [2025-01-09 22:29:47,210 INFO L226 Difference]: Without dead ends: 19 [2025-01-09 22:29:47,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:29:47,210 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 22:29:47,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 22:29:47,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-01-09 22:29:47,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2025-01-09 22:29:47,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 22:29:47,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2025-01-09 22:29:47,213 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 16 [2025-01-09 22:29:47,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:29:47,213 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2025-01-09 22:29:47,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 22:29:47,213 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2025-01-09 22:29:47,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-01-09 22:29:47,213 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:29:47,213 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:29:47,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 22:29:47,418 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 [2025-01-09 22:29:47,418 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-01-09 22:29:47,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:29:47,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1249333420, now seen corresponding path program 1 times [2025-01-09 22:29:47,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:29:47,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610329924] [2025-01-09 22:29:47,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:29:47,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:29:47,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:29:47,421 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) [2025-01-09 22:29:47,423 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 [2025-01-09 22:29:47,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-09 22:29:47,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-09 22:29:47,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:29:47,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:29:47,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 22:29:47,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:29:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 22:29:47,490 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:29:47,490 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:29:47,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610329924] [2025-01-09 22:29:47,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610329924] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:29:47,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:29:47,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:29:47,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487509413] [2025-01-09 22:29:47,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:29:47,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 22:29:47,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:29:47,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 22:29:47,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:29:47,491 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 22:29:47,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:29:47,523 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2025-01-09 22:29:47,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 22:29:47,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2025-01-09 22:29:47,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:29:47,524 INFO L225 Difference]: With dead ends: 24 [2025-01-09 22:29:47,524 INFO L226 Difference]: Without dead ends: 24 [2025-01-09 22:29:47,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:29:47,524 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 22:29:47,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 45 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 22:29:47,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-01-09 22:29:47,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-01-09 22:29:47,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 22:29:47,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2025-01-09 22:29:47,527 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 17 [2025-01-09 22:29:47,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:29:47,527 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2025-01-09 22:29:47,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 22:29:47,527 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2025-01-09 22:29:47,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-01-09 22:29:47,534 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:29:47,534 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:29:47,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 22:29:47,737 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 [2025-01-09 22:29:47,738 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-01-09 22:29:47,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:29:47,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1277962571, now seen corresponding path program 1 times [2025-01-09 22:29:47,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:29:47,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [281472367] [2025-01-09 22:29:47,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:29:47,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:29:47,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:29:47,741 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) [2025-01-09 22:29:47,742 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 [2025-01-09 22:29:47,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-09 22:29:47,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-09 22:29:47,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:29:47,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:29:47,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 22:29:47,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:29:47,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:29:47,847 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:29:47,847 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:29:47,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281472367] [2025-01-09 22:29:47,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281472367] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:29:47,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:29:47,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 22:29:47,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637508270] [2025-01-09 22:29:47,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:29:47,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 22:29:47,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:29:47,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 22:29:47,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-09 22:29:47,848 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 22:29:47,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:29:47,907 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2025-01-09 22:29:47,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 22:29:47,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2025-01-09 22:29:47,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:29:47,908 INFO L225 Difference]: With dead ends: 24 [2025-01-09 22:29:47,908 INFO L226 Difference]: Without dead ends: 24 [2025-01-09 22:29:47,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-09 22:29:47,908 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 22:29:47,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 52 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:29:47,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-01-09 22:29:47,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-01-09 22:29:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 22:29:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2025-01-09 22:29:47,910 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 17 [2025-01-09 22:29:47,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:29:47,911 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2025-01-09 22:29:47,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 22:29:47,911 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2025-01-09 22:29:47,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-01-09 22:29:47,911 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:29:47,911 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:29:47,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 22:29:48,111 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 [2025-01-09 22:29:48,112 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-01-09 22:29:48,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:29:48,112 INFO L85 PathProgramCache]: Analyzing trace with hash 74630407, now seen corresponding path program 1 times [2025-01-09 22:29:48,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:29:48,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1597737780] [2025-01-09 22:29:48,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:29:48,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:29:48,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:29:48,114 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) [2025-01-09 22:29:48,116 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 [2025-01-09 22:29:48,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-09 22:29:48,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-09 22:29:48,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:29:48,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:29:48,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 22:29:48,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:29:48,180 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 [2025-01-09 22:29:48,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-09 22:29:48,225 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:29:48,225 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:29:48,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597737780] [2025-01-09 22:29:48,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597737780] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:29:48,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:29:48,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:29:48,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483934998] [2025-01-09 22:29:48,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:29:48,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 22:29:48,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:29:48,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 22:29:48,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:29:48,226 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 22:29:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:29:48,251 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2025-01-09 22:29:48,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 22:29:48,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2025-01-09 22:29:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:29:48,252 INFO L225 Difference]: With dead ends: 23 [2025-01-09 22:29:48,252 INFO L226 Difference]: Without dead ends: 23 [2025-01-09 22:29:48,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:29:48,252 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 22:29:48,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 22:29:48,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-01-09 22:29:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2025-01-09 22:29:48,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 22:29:48,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2025-01-09 22:29:48,254 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 18 [2025-01-09 22:29:48,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:29:48,254 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2025-01-09 22:29:48,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 22:29:48,255 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2025-01-09 22:29:48,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-01-09 22:29:48,255 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:29:48,255 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:29:48,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-09 22:29:48,455 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 [2025-01-09 22:29:48,456 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-01-09 22:29:48,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:29:48,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1294621142, now seen corresponding path program 1 times [2025-01-09 22:29:48,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:29:48,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718567177] [2025-01-09 22:29:48,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:29:48,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:29:48,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:29:48,458 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) [2025-01-09 22:29:48,459 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 [2025-01-09 22:29:48,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-09 22:29:48,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-09 22:29:48,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:29:48,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 22:29:48,507 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 22:29:48,516 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-09 22:29:48,522 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-09 22:29:48,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:29:48,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 22:29:48,534 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-01-09 22:29:48,535 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 22:29:48,535 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-01-09 22:29:48,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2025-01-09 22:29:48,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2025-01-09 22:29:48,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (0 of 4 remaining) [2025-01-09 22:29:48,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-09 22:29:48,737 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 [2025-01-09 22:29:48,740 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:29:48,750 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 22:29:48,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 10:29:48 BoogieIcfgContainer [2025-01-09 22:29:48,752 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 22:29:48,753 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 22:29:48,753 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 22:29:48,753 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 22:29:48,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:29:46" (3/4) ... [2025-01-09 22:29:48,755 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 22:29:48,755 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 22:29:48,756 INFO L158 Benchmark]: Toolchain (without parser) took 3189.43ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 79.2MB in the end (delta: 11.5MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2025-01-09 22:29:48,756 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:29:48,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.05ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 63.3MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 22:29:48,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.41ms. Allocated memory is still 117.4MB. Free memory was 63.3MB in the beginning and 61.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:29:48,756 INFO L158 Benchmark]: Boogie Preprocessor took 40.05ms. Allocated memory is still 117.4MB. Free memory was 61.6MB in the beginning and 60.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:29:48,757 INFO L158 Benchmark]: RCFGBuilder took 207.37ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 48.9MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 22:29:48,757 INFO L158 Benchmark]: TraceAbstraction took 2499.80ms. Allocated memory is still 117.4MB. Free memory was 48.4MB in the beginning and 79.3MB in the end (delta: -30.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:29:48,757 INFO L158 Benchmark]: Witness Printer took 2.63ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 79.2MB in the end (delta: 19.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:29:48,758 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.05ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 63.3MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.41ms. Allocated memory is still 117.4MB. Free memory was 63.3MB in the beginning and 61.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.05ms. Allocated memory is still 117.4MB. Free memory was 61.6MB in the beginning and 60.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 207.37ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 48.9MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2499.80ms. Allocated memory is still 117.4MB. Free memory was 48.4MB in the beginning and 79.3MB in the end (delta: -30.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.63ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 79.2MB in the end (delta: 19.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 764. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={1:0}] [L765] CALL entry_point() [L758] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={1:0}] [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] COND TRUE \read(*p) VAL [ldv_global_msg_list={1:0}] [L760] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L760] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={1:0}] [L760] int *q = (int *)ldv_malloc(sizeof(int)); [L761] free(q) VAL [ldv_global_msg_list={1:0}] [L761] free(q) VAL [ldv_global_msg_list={1:0}] [L761] free(q) [L765] RET entry_point() - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 347 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 223 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 163 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 124 mSDtfsCounter, 163 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=1, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 SizeOfPredicates, 1 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 22:29:48,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample