./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memcleanup.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_iter.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_iter.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cce1bb7a06b9dd56fbf663e182ffe801720ee05ee19a126a08070f1616bc4afe --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:43:00,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:43:00,475 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-10-24 15:43:00,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:43:00,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:43:00,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:43:00,508 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:43:00,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:43:00,509 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 15:43:00,509 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 15:43:00,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:43:00,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:43:00,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:43:00,510 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:43:00,510 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:43:00,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:43:00,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:43:00,514 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:43:00,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:43:00,515 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:43:00,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:43:00,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:43:00,516 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 15:43:00,516 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 15:43:00,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:43:00,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:43:00,516 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 15:43:00,517 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:43:00,517 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:43:00,517 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:43:00,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:43:00,518 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:43:00,518 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:43:00,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:43:00,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 15:43:00,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:43:00,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:43:00,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:43:00,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:43:00,518 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:43:00,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:43:00,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:43:00,519 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:43:00,519 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:43:00,519 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:43:00,519 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cce1bb7a06b9dd56fbf663e182ffe801720ee05ee19a126a08070f1616bc4afe [2024-10-24 15:43:00,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:43:00,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:43:00,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:43:00,754 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:43:00,754 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:43:00,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_iter.c [2024-10-24 15:43:01,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:43:02,140 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:43:02,140 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_iter.c [2024-10-24 15:43:02,147 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54288a1e1/24f86e9a909f49c78a6733270fe9f0ef/FLAGc08f19030 [2024-10-24 15:43:02,527 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54288a1e1/24f86e9a909f49c78a6733270fe9f0ef [2024-10-24 15:43:02,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:43:02,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:43:02,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:43:02,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:43:02,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:43:02,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:43:02" (1/1) ... [2024-10-24 15:43:02,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44fd5d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:02, skipping insertion in model container [2024-10-24 15:43:02,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:43:02" (1/1) ... [2024-10-24 15:43:02,557 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:43:02,700 WARN L1660 CHandler]: Possible shadowing of function min [2024-10-24 15:43:02,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:43:02,718 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) [2024-10-24 15:43:02,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2fe04dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:02, skipping insertion in model container [2024-10-24 15:43:02,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:43:02,719 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-24 15:43:02,721 INFO L158 Benchmark]: Toolchain (without parser) took 189.45ms. Allocated memory is still 172.0MB. Free memory was 143.2MB in the beginning and 131.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 15:43:02,721 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 172.0MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:43:02,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.03ms. Allocated memory is still 172.0MB. Free memory was 142.4MB in the beginning and 131.1MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 15:43:02,722 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 172.0MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.03ms. Allocated memory is still 172.0MB. Free memory was 142.4MB in the beginning and 131.1MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 28]: 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/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_iter.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cce1bb7a06b9dd56fbf663e182ffe801720ee05ee19a126a08070f1616bc4afe --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:43:04,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:43:04,354 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-10-24 15:43:04,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:43:04,358 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:43:04,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:43:04,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:43:04,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:43:04,373 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 15:43:04,373 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 15:43:04,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:43:04,374 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:43:04,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:43:04,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:43:04,375 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:43:04,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:43:04,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:43:04,376 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:43:04,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:43:04,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:43:04,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:43:04,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:43:04,377 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 15:43:04,377 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 15:43:04,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:43:04,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:43:04,378 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 15:43:04,378 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 15:43:04,378 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:43:04,378 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 15:43:04,378 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:43:04,379 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:43:04,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:43:04,379 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:43:04,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:43:04,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:43:04,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 15:43:04,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:43:04,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:43:04,380 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:43:04,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:43:04,383 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 15:43:04,383 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 15:43:04,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:43:04,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:43:04,383 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:43:04,383 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:43:04,383 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 15:43:04,384 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cce1bb7a06b9dd56fbf663e182ffe801720ee05ee19a126a08070f1616bc4afe [2024-10-24 15:43:04,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:43:04,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:43:04,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:43:04,673 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:43:04,674 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:43:04,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_iter.c [2024-10-24 15:43:05,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:43:06,105 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:43:06,106 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_iter.c [2024-10-24 15:43:06,115 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1496d0a/2d46df5d047d416bae5ca1ba312da869/FLAGb5ac4feb2 [2024-10-24 15:43:06,129 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1496d0a/2d46df5d047d416bae5ca1ba312da869 [2024-10-24 15:43:06,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:43:06,140 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:43:06,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:43:06,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:43:06,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:43:06,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ac48e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06, skipping insertion in model container [2024-10-24 15:43:06,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,167 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:43:06,324 WARN L1660 CHandler]: Possible shadowing of function min [2024-10-24 15:43:06,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:43:06,358 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-24 15:43:06,361 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:43:06,373 WARN L1660 CHandler]: Possible shadowing of function min [2024-10-24 15:43:06,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:43:06,392 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:43:06,408 WARN L1660 CHandler]: Possible shadowing of function min [2024-10-24 15:43:06,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:43:06,436 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:43:06,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06 WrapperNode [2024-10-24 15:43:06,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:43:06,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:43:06,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:43:06,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:43:06,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,480 INFO L138 Inliner]: procedures = 31, calls = 65, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 114 [2024-10-24 15:43:06,480 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:43:06,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:43:06,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:43:06,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:43:06,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,494 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,524 INFO L175 MemorySlicer]: Split 28 memory accesses to 4 slices as follows [2, 2, 19, 5]. 68 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 7 writes are split as follows [0, 1, 4, 2]. [2024-10-24 15:43:06,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,528 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,540 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,557 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:43:06,558 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:43:06,558 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:43:06,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:43:06,559 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (1/1) ... [2024-10-24 15:43:06,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:43:06,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:43:06,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:43:06,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:43:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:43:06,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 15:43:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-24 15:43:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-24 15:43:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-24 15:43:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:43:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 15:43:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 15:43:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 15:43:06,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 15:43:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure min [2024-10-24 15:43:06,623 INFO L138 BoogieDeclarations]: Found implementation of procedure min [2024-10-24 15:43:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-24 15:43:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-24 15:43:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-24 15:43:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-24 15:43:06,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-10-24 15:43:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-10-24 15:43:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 15:43:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 15:43:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 15:43:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 15:43:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2024-10-24 15:43:06,624 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2024-10-24 15:43:06,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:43:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure size [2024-10-24 15:43:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure size [2024-10-24 15:43:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:43:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:43:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 15:43:06,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 15:43:06,625 INFO L130 BoogieDeclarations]: Found specification of procedure tree_inorder [2024-10-24 15:43:06,626 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_inorder [2024-10-24 15:43:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:43:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-24 15:43:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-24 15:43:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-24 15:43:06,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-24 15:43:06,743 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:43:06,745 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:43:07,100 INFO L? ?]: Removed 76 outVars from TransFormulas that were not future-live. [2024-10-24 15:43:07,100 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:43:07,124 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:43:07,125 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-24 15:43:07,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:43:07 BoogieIcfgContainer [2024-10-24 15:43:07,126 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:43:07,127 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:43:07,127 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:43:07,130 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:43:07,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:43:06" (1/3) ... [2024-10-24 15:43:07,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fadfbbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:43:07, skipping insertion in model container [2024-10-24 15:43:07,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:43:06" (2/3) ... [2024-10-24 15:43:07,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fadfbbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:43:07, skipping insertion in model container [2024-10-24 15:43:07,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:43:07" (3/3) ... [2024-10-24 15:43:07,132 INFO L112 eAbstractionObserver]: Analyzing ICFG tree_del_iter.c [2024-10-24 15:43:07,144 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:43:07,145 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 15:43:07,185 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:43:07,190 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;@4a5dec17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:43:07,190 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 15:43:07,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 50 states have (on average 1.34) internal successors, (67), 52 states have internal predecessors, (67), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 15:43:07,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-24 15:43:07,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:43:07,205 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:43:07,205 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:43:07,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:43:07,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1653233391, now seen corresponding path program 1 times [2024-10-24 15:43:07,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:43:07,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532359575] [2024-10-24 15:43:07,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:43:07,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:43:07,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:43:07,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:43:07,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 15:43:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:43:07,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 15:43:07,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:43:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:43:07,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:43:07,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:43:07,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532359575] [2024-10-24 15:43:07,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532359575] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:43:07,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:43:07,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:43:07,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208302248] [2024-10-24 15:43:07,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:43:07,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:43:07,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:43:07,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:43:07,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:43:07,400 INFO L87 Difference]: Start difference. First operand has 79 states, 50 states have (on average 1.34) internal successors, (67), 52 states have internal predecessors, (67), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 15:43:07,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:43:07,465 INFO L93 Difference]: Finished difference Result 83 states and 109 transitions. [2024-10-24 15:43:07,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 15:43:07,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2024-10-24 15:43:07,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:43:07,475 INFO L225 Difference]: With dead ends: 83 [2024-10-24 15:43:07,475 INFO L226 Difference]: Without dead ends: 79 [2024-10-24 15:43:07,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:43:07,481 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 15:43:07,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 375 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 15:43:07,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-24 15:43:07,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-10-24 15:43:07,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 50 states have (on average 1.2) internal successors, (60), 52 states have internal predecessors, (60), 20 states have call successors, (20), 6 states have call predecessors, (20), 7 states have return successors, (23), 20 states have call predecessors, (23), 20 states have call successors, (23) [2024-10-24 15:43:07,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2024-10-24 15:43:07,512 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 35 [2024-10-24 15:43:07,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:43:07,512 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2024-10-24 15:43:07,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 15:43:07,513 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2024-10-24 15:43:07,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-24 15:43:07,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:43:07,515 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:43:07,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 15:43:07,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:43:07,718 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:43:07,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:43:07,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1844270198, now seen corresponding path program 1 times [2024-10-24 15:43:07,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:43:07,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131039260] [2024-10-24 15:43:07,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:43:07,720 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:43:07,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:43:07,721 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:43:07,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 15:43:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:43:07,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 15:43:07,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:43:08,000 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 15:43:08,001 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:43:08,208 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 15:43:08,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:43:08,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131039260] [2024-10-24 15:43:08,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131039260] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:43:08,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 15:43:08,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2024-10-24 15:43:08,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611128663] [2024-10-24 15:43:08,209 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 15:43:08,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:43:08,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:43:08,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:43:08,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 15:43:08,215 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-24 15:43:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:43:08,344 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2024-10-24 15:43:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 15:43:08,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 47 [2024-10-24 15:43:08,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:43:08,346 INFO L225 Difference]: With dead ends: 85 [2024-10-24 15:43:08,346 INFO L226 Difference]: Without dead ends: 81 [2024-10-24 15:43:08,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-24 15:43:08,347 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 1 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 15:43:08,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 521 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 15:43:08,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-24 15:43:08,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-10-24 15:43:08,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 51 states have (on average 1.196078431372549) internal successors, (61), 54 states have internal predecessors, (61), 20 states have call successors, (20), 6 states have call predecessors, (20), 8 states have return successors, (25), 20 states have call predecessors, (25), 20 states have call successors, (25) [2024-10-24 15:43:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 106 transitions. [2024-10-24 15:43:08,354 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 106 transitions. Word has length 47 [2024-10-24 15:43:08,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:43:08,355 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 106 transitions. [2024-10-24 15:43:08,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-24 15:43:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 106 transitions. [2024-10-24 15:43:08,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-24 15:43:08,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:43:08,356 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:43:08,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-24 15:43:08,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:43:08,557 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:43:08,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:43:08,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1030561685, now seen corresponding path program 1 times [2024-10-24 15:43:08,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:43:08,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221233060] [2024-10-24 15:43:08,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:43:08,559 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:43:08,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:43:08,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:43:08,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-24 15:43:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:43:08,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 15:43:08,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:43:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-24 15:43:08,723 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:43:08,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:43:08,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221233060] [2024-10-24 15:43:08,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221233060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:43:08,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:43:08,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 15:43:08,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016031952] [2024-10-24 15:43:08,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:43:08,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:43:08,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:43:08,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:43:08,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 15:43:08,729 INFO L87 Difference]: Start difference. First operand 81 states and 106 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-24 15:43:08,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:43:08,845 INFO L93 Difference]: Finished difference Result 83 states and 109 transitions. [2024-10-24 15:43:08,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 15:43:08,846 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 59 [2024-10-24 15:43:08,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:43:08,854 INFO L225 Difference]: With dead ends: 83 [2024-10-24 15:43:08,854 INFO L226 Difference]: Without dead ends: 83 [2024-10-24 15:43:08,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 15:43:08,855 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 22 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 15:43:08,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 573 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 15:43:08,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-24 15:43:08,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-10-24 15:43:08,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 56 states have internal predecessors, (62), 20 states have call successors, (20), 6 states have call predecessors, (20), 9 states have return successors, (27), 20 states have call predecessors, (27), 20 states have call successors, (27) [2024-10-24 15:43:08,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 109 transitions. [2024-10-24 15:43:08,869 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 109 transitions. Word has length 59 [2024-10-24 15:43:08,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:43:08,870 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 109 transitions. [2024-10-24 15:43:08,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 4 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-24 15:43:08,870 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 109 transitions. [2024-10-24 15:43:08,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-24 15:43:08,876 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:43:08,876 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:43:08,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-24 15:43:09,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:43:09,077 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:43:09,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:43:09,077 INFO L85 PathProgramCache]: Analyzing trace with hash 655288933, now seen corresponding path program 1 times [2024-10-24 15:43:09,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:43:09,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737737463] [2024-10-24 15:43:09,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:43:09,079 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:43:09,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:43:09,081 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:43:09,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-24 15:43:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:43:09,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 15:43:09,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:43:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-24 15:43:09,247 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:43:09,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 15:43:09,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737737463] [2024-10-24 15:43:09,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737737463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:43:09,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:43:09,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 15:43:09,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169722798] [2024-10-24 15:43:09,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:43:09,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:43:09,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 15:43:09,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:43:09,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 15:43:09,249 INFO L87 Difference]: Start difference. First operand 83 states and 109 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 15:43:09,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 15:43:09,397 INFO L93 Difference]: Finished difference Result 85 states and 113 transitions. [2024-10-24 15:43:09,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 15:43:09,398 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 72 [2024-10-24 15:43:09,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 15:43:09,399 INFO L225 Difference]: With dead ends: 85 [2024-10-24 15:43:09,402 INFO L226 Difference]: Without dead ends: 85 [2024-10-24 15:43:09,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 15:43:09,403 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 17 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 15:43:09,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 565 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 15:43:09,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-24 15:43:09,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-10-24 15:43:09,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 58 states have internal predecessors, (63), 20 states have call successors, (20), 6 states have call predecessors, (20), 10 states have return successors, (30), 20 states have call predecessors, (30), 20 states have call successors, (30) [2024-10-24 15:43:09,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 113 transitions. [2024-10-24 15:43:09,417 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 113 transitions. Word has length 72 [2024-10-24 15:43:09,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 15:43:09,417 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 113 transitions. [2024-10-24 15:43:09,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 15:43:09,418 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 113 transitions. [2024-10-24 15:43:09,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 15:43:09,419 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 15:43:09,422 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:43:09,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-24 15:43:09,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:43:09,623 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-24 15:43:09,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:43:09,624 INFO L85 PathProgramCache]: Analyzing trace with hash 792876520, now seen corresponding path program 1 times [2024-10-24 15:43:09,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 15:43:09,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186294635] [2024-10-24 15:43:09,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:43:09,624 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:43:09,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 15:43:09,626 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 15:43:09,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-24 15:43:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:43:09,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:43:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:43:10,132 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-24 15:43:10,133 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:43:10,134 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2024-10-24 15:43:10,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-10-24 15:43:10,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-10-24 15:43:10,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 15:43:10,339 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-24 15:43:10,378 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:43:10,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:43:10 BoogieIcfgContainer [2024-10-24 15:43:10,380 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:43:10,381 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:43:10,381 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:43:10,381 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:43:10,381 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:43:07" (3/4) ... [2024-10-24 15:43:10,382 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-24 15:43:10,426 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 15:43:10,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:43:10,426 INFO L158 Benchmark]: Toolchain (without parser) took 4294.35ms. Allocated memory was 67.1MB in the beginning and 109.1MB in the end (delta: 41.9MB). Free memory was 28.7MB in the beginning and 60.4MB in the end (delta: -31.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-10-24 15:43:10,427 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:43:10,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.80ms. Allocated memory is still 67.1MB. Free memory was 48.4MB in the beginning and 31.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-24 15:43:10,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.21ms. Allocated memory is still 67.1MB. Free memory was 31.6MB in the beginning and 29.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:43:10,427 INFO L158 Benchmark]: Boogie Preprocessor took 76.13ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 29.6MB in the beginning and 68.3MB in the end (delta: -38.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 15:43:10,427 INFO L158 Benchmark]: RCFGBuilder took 567.94ms. Allocated memory is still 90.2MB. Free memory was 68.3MB in the beginning and 59.7MB in the end (delta: 8.6MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2024-10-24 15:43:10,428 INFO L158 Benchmark]: TraceAbstraction took 3253.42ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 59.1MB in the beginning and 64.0MB in the end (delta: -5.0MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-10-24 15:43:10,428 INFO L158 Benchmark]: Witness Printer took 45.51ms. Allocated memory is still 109.1MB. Free memory was 64.0MB in the beginning and 60.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 15:43:10,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 67.1MB. Free memory was 43.6MB in the beginning and 43.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.80ms. Allocated memory is still 67.1MB. Free memory was 48.4MB in the beginning and 31.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.21ms. Allocated memory is still 67.1MB. Free memory was 31.6MB in the beginning and 29.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.13ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 29.6MB in the beginning and 68.3MB in the end (delta: -38.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 567.94ms. Allocated memory is still 90.2MB. Free memory was 68.3MB in the beginning and 59.7MB in the end (delta: 8.6MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3253.42ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 59.1MB in the beginning and 64.0MB in the end (delta: -5.0MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Witness Printer took 45.51ms. Allocated memory is still 109.1MB. Free memory was 64.0MB in the beginning and 60.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. 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 - CounterExampleResult [Line: 14]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L110] CALL, EXPR nondet_tree() [L25] COND FALSE !(__VERIFIER_nondet_bool()) [L28] struct node *n = (struct node *)malloc(sizeof(struct node)); [L29] n->data = __VERIFIER_nondet_int() [L30] CALL, EXPR nondet_tree() [L25] COND TRUE __VERIFIER_nondet_bool() [L26] return 0; VAL [\result={0:0}] [L30] RET, EXPR nondet_tree() VAL [n={6:0}] [L30] n->left = nondet_tree() [L31] CALL, EXPR nondet_tree() [L25] COND TRUE __VERIFIER_nondet_bool() [L26] return 0; VAL [\result={0:0}] [L31] RET, EXPR nondet_tree() VAL [n={6:0}] [L31] n->right = nondet_tree() [L32] return n; VAL [\result={6:0}] [L110] RET, EXPR nondet_tree() [L110] CALL task(nondet_tree()) [L86] CALL, EXPR min(t) VAL [\old(n)={6:0}] [L37] COND FALSE !(!n) [L40] EXPR n->data [L40] int a = n->data; [L41] EXPR n->left VAL [\old(n)={6:0}, a=2147483647, n={6:0}] [L41] CALL, EXPR min(n->left) VAL [\old(n)={0:0}] [L37] COND TRUE !n [L38] return 2147483647; VAL [\old(n)={0:0}, \result=2147483647] [L41] RET, EXPR min(n->left) VAL [\old(n)={6:0}, a=2147483647, n={6:0}] [L41] int b = min(n->left); [L42] EXPR n->right VAL [\old(n)={6:0}, a=2147483647, b=2147483647] [L42] CALL, EXPR min(n->right) VAL [\old(n)={0:0}] [L37] COND TRUE !n [L38] return 2147483647; VAL [\old(n)={0:0}, \result=2147483647] [L42] RET, EXPR min(n->right) VAL [\old(n)={6:0}, a=2147483647, b=2147483647] [L42] int c = min(n->right); [L43] COND TRUE b <= a && b <= c [L43] return b; VAL [\old(n)={6:0}, \result=2147483647] [L86] RET, EXPR min(t) VAL [t={6:0}] [L86] int a = min(t); [L87] int b; VAL [a=2147483647, b={38:0}, t={6:0}] [L89] CALL, EXPR size(t) VAL [\old(t)={6:0}] [L81] COND FALSE !(!t) [L82] EXPR t->left VAL [\old(t)={6:0}, t={6:0}] [L82] CALL, EXPR size(t->left) VAL [\old(t)={0:0}] [L81] COND TRUE !t [L81] return 0; VAL [\old(t)={0:0}, \result=0] [L82] RET, EXPR size(t->left) VAL [\old(t)={6:0}, t={6:0}] [L82] EXPR t->right VAL [\old(t)={6:0}] [L82] CALL, EXPR size(t->right) VAL [\old(t)={0:0}] [L81] COND TRUE !t [L81] return 0; VAL [\old(t)={0:0}, \result=0] [L82] RET, EXPR size(t->right) VAL [\old(t)={6:0}] [L82] return size(t->left) + size(t->right) + 1; [L89] RET, EXPR size(t) VAL [a=2147483647, b={38:0}, t={6:0}] [L89] int n = size(t); [L90] CALL assume_cycle_if_not(n != 0) [L9] COND FALSE !(!cond) [L90] RET assume_cycle_if_not(n != 0) [L91] EXPR, FCALL calloc(n, sizeof(int)) VAL [a=2147483647, b={38:0}, n=1, t={6:0}] [L91] int *x = calloc(n, sizeof(int)); [L92] CALL tree_inorder(t, x, n) VAL [\old(a)={4:0}, \old(i)=1, \old(t)={6:0}] [L70] COND FALSE !(!t) [L73] EXPR t->left VAL [\old(a)={4:0}, \old(i)=1, \old(t)={6:0}, a={4:0}, i=1, t={6:0}] [L73] CALL, EXPR tree_inorder(t->left, a, i) VAL [\old(a)={4:0}, \old(i)=1, \old(t)={0:0}] [L70] COND TRUE !t [L71] return i; VAL [\old(a)={4:0}, \old(i)=1, \old(t)={0:0}, \result=1, a={4:0}] [L73] RET, EXPR tree_inorder(t->left, a, i) VAL [\old(a)={4:0}, \old(i)=1, \old(t)={6:0}, a={4:0}, i=1, t={6:0}] [L73] i = tree_inorder(t->left, a, i) [L74] EXPR i++ [L74] EXPR t->data [L74] a[i++] = t->data [L75] EXPR t->right VAL [\old(a)={4:0}, \old(i)=1, \old(t)={6:0}, a={4:0}, i=2] [L75] CALL, EXPR tree_inorder(t->right, a, i) VAL [\old(a)={4:0}, \old(i)=2, \old(t)={0:0}] [L70] COND TRUE !t [L71] return i; VAL [\old(a)={4:0}, \old(i)=2, \old(t)={0:0}, \result=2, a={4:0}] [L75] RET, EXPR tree_inorder(t->right, a, i) VAL [\old(a)={4:0}, \old(i)=1, \old(t)={6:0}, a={4:0}, i=2] [L75] i = tree_inorder(t->right, a, i) [L76] return i; VAL [\old(a)={4:0}, \old(i)=1, \old(t)={6:0}, \result=2, a={4:0}, i=2] [L92] RET tree_inorder(t, x, n) VAL [a=2147483647, b={38:0}, n=1, t={6:0}, x={4:0}] [L93] EXPR x[0] [L93] CALL __VERIFIER_assert(a == x[0]) [L16] COND TRUE !cond [L16] CALL reach_error() [L14] __assert_fail("0", "tree_del_iter.c", 14, "reach_error") - UnprovableResult [Line: 109]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 79 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 2034 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1671 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 314 IncrementalHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 363 mSDtfsCounter, 314 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 255 ConstructedInterpolants, 0 QuantifiedInterpolants, 536 SizeOfPredicates, 3 NumberOfNonLiveVariables, 737 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 80/84 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 RESULT: Ultimate proved your program to be incorrect! [2024-10-24 15:43:10,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)