./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:32:43,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:32:44,038 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:32:44,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:32:44,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:32:44,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:32:44,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:32:44,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:32:44,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:32:44,076 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:32:44,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:32:44,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:32:44,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:32:44,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:32:44,078 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:32:44,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:32:44,079 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:32:44,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:32:44,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:32:44,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:32:44,079 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:32:44,079 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:32:44,079 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:32:44,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:32:44,079 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:32:44,079 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:32:44,079 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:32:44,080 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:32:44,080 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:32:44,080 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:32:44,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:32:44,080 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:32:44,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:32:44,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:32:44,081 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:32:44,081 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:32:44,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:32:44,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:32:44,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:32:44,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:32:44,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:32:44,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:32:44,081 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 [2025-02-08 08:32:44,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:32:44,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:32:44,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:32:44,394 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:32:44,394 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:32:44,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2025-02-08 08:32:45,793 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a1e01ae34/b79c311e5ce84adc8902e9966f9c6da3/FLAG4868911df [2025-02-08 08:32:46,227 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:32:46,231 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2025-02-08 08:32:46,254 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a1e01ae34/b79c311e5ce84adc8902e9966f9c6da3/FLAG4868911df [2025-02-08 08:32:46,371 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a1e01ae34/b79c311e5ce84adc8902e9966f9c6da3 [2025-02-08 08:32:46,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:32:46,374 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:32:46,375 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:32:46,375 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:32:46,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:32:46,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,381 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f794e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46, skipping insertion in model container [2025-02-08 08:32:46,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,419 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:32:46,734 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,735 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,735 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,736 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:32:46,797 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-08 08:32:46,797 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6d9ef7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46, skipping insertion in model container [2025-02-08 08:32:46,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:32:46,798 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 08:32:46,805 INFO L158 Benchmark]: Toolchain (without parser) took 424.80ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 87.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:32:46,806 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:32:46,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.81ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 87.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:32:46,807 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.81ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 87.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1044]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:32:48,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:32:49,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 08:32:49,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:32:49,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:32:49,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:32:49,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:32:49,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:32:49,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:32:49,051 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:32:49,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:32:49,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:32:49,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:32:49,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:32:49,051 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:32:49,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:32:49,051 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:32:49,052 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:32:49,053 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:32:49,053 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:32:49,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:32:49,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:32:49,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:32:49,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:32:49,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:32:49,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:32:49,053 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 08:32:49,053 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 08:32:49,053 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:32:49,053 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:32:49,053 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:32:49,054 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:32:49,054 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 [2025-02-08 08:32:49,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:32:49,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:32:49,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:32:49,388 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:32:49,388 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:32:49,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2025-02-08 08:32:50,739 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ea1a50222/433c40ec9a994193b472a6b6c13b8d62/FLAG72df20358 [2025-02-08 08:32:51,028 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:32:51,029 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2025-02-08 08:32:51,046 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ea1a50222/433c40ec9a994193b472a6b6c13b8d62/FLAG72df20358 [2025-02-08 08:32:51,059 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ea1a50222/433c40ec9a994193b472a6b6c13b8d62 [2025-02-08 08:32:51,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:32:51,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:32:51,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:32:51,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:32:51,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:32:51,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548e7da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51, skipping insertion in model container [2025-02-08 08:32:51,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,118 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:32:51,461 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:51,462 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:51,462 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:51,462 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:51,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:32:51,531 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 08:32:51,546 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:32:51,590 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:51,593 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:51,593 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:51,593 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:51,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:32:51,622 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:32:51,689 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:51,690 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:51,690 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:51,690 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:51,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:32:51,764 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:32:51,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51 WrapperNode [2025-02-08 08:32:51,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:32:51,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:32:51,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:32:51,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:32:51,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,823 INFO L138 Inliner]: procedures = 283, calls = 120, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 241 [2025-02-08 08:32:51,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:32:51,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:32:51,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:32:51,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:32:51,836 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,843 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,876 INFO L175 MemorySlicer]: Split 96 memory accesses to 4 slices as follows [2, 5, 87, 2]. 91 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 5, 70, 0]. The 12 writes are split as follows [0, 0, 11, 1]. [2025-02-08 08:32:51,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,902 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,903 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,911 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:32:51,912 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:32:51,912 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:32:51,912 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:32:51,913 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (1/1) ... [2025-02-08 08:32:51,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:32:51,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:32:51,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:32:51,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:32:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 08:32:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 08:32:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 08:32:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-02-08 08:32:51,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 08:32:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 08:32:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 08:32:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 08:32:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 08:32:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 08:32:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 08:32:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 08:32:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 08:32:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-02-08 08:32:51,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 08:32:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 08:32:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 08:32:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 08:32:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 08:32:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 08:32:51,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 08:32:51,977 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 08:32:51,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:32:51,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:32:51,979 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:32:52,188 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:32:52,190 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:32:53,014 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1059-2: main_~j~1#1 := ~bvadd~32(1bv32, main_#t~post24#1); [2025-02-08 08:32:53,015 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1059-3: assume { :end_inline_list_add } true;main_#t~post24#1 := main_~j~1#1; [2025-02-08 08:32:53,016 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1059-4: havoc list_add_#in~new#1.base, list_add_#in~new#1.offset, list_add_#in~head#1.base, list_add_#in~head#1.offset; [2025-02-08 08:32:53,016 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1059-5: havoc list_add_#t~mem4#1.base, list_add_#t~mem4#1.offset, list_add_~new#1.base, list_add_~new#1.offset, list_add_~head#1.base, list_add_~head#1.offset, list_add_~next~0#1.base, list_add_~next~0#1.offset; [2025-02-08 08:32:53,016 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1059-6: assume { :end_inline_new } true;assume { :begin_inline_list_add } true;list_add_#in~new#1.base, list_add_#in~new#1.offset, list_add_#in~head#1.base, list_add_#in~head#1.offset := main_#t~ret23#1.base, ~bvadd~32(4bv32, main_#t~ret23#1.offset), ~#c~0.base, ~bvadd~32(~#c~0.offset, ~bvmul~32(8bv32, main_~i~0#1)); [2025-02-08 08:32:53,016 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1059-7: havoc new_#in~x#1; [2025-02-08 08:32:53,016 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1059-8: havoc new_#t~malloc3#1.base, new_#t~malloc3#1.offset, new_~x#1, new_~p~0#1.base, new_~p~0#1.offset; [2025-02-08 08:32:53,016 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1059-9: main_#t~ret23#1.base, main_#t~ret23#1.offset := new_#res#1.base, new_#res#1.offset; [2025-02-08 08:32:53,016 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1061: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-08 08:32:53,017 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1061-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-08 08:32:53,017 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1028: list_add_~head#1.base, list_add_~head#1.offset := list_add_#in~head#1.base, list_add_#in~head#1.offset; [2025-02-08 08:32:53,017 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1028-1: list_add_~new#1.base, list_add_~new#1.offset := list_add_#in~new#1.base, list_add_#in~new#1.offset; [2025-02-08 08:32:53,017 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029: havoc list_add_#t~mem4#1.base, list_add_#t~mem4#1.offset; [2025-02-08 08:32:53,017 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-1: list_add_~next~0#1.base, list_add_~next~0#1.offset := list_add_#t~mem4#1.base, list_add_#t~mem4#1.offset; [2025-02-08 08:32:53,017 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-2: SUMMARY for call list_add_#t~mem4#1.base, list_add_#t~mem4#1.offset := read~$Pointer$#2(list_add_~head#1.base, list_add_~head#1.offset, 4bv32); srcloc: null [2025-02-08 08:32:53,017 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-2: assume !(1bv1 == #valid[list_add_~head#1.base]); [2025-02-08 08:32:53,018 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-2: assume !((~bvule~32(~bvadd~32(4bv32, list_add_~head#1.offset), #length[list_add_~head#1.base]) && ~bvule~32(list_add_~head#1.offset, ~bvadd~32(4bv32, list_add_~head#1.offset))) && ~bvule~32(0bv32, list_add_~head#1.offset)); [2025-02-08 08:32:53,018 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1030: SUMMARY for call write~$Pointer$#2(list_add_~new#1.base, list_add_~new#1.offset, list_add_~next~0#1.base, ~bvadd~32(4bv32, list_add_~next~0#1.offset), 4bv32); srcloc: null [2025-02-08 08:32:53,018 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1030: assume !(1bv1 == #valid[list_add_~next~0#1.base]); [2025-02-08 08:32:53,018 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1030: assume !((~bvule~32(~bvadd~32(4bv32, ~bvadd~32(4bv32, list_add_~next~0#1.offset)), #length[list_add_~next~0#1.base]) && ~bvule~32(~bvadd~32(4bv32, list_add_~next~0#1.offset), ~bvadd~32(4bv32, ~bvadd~32(4bv32, list_add_~next~0#1.offset)))) && ~bvule~32(0bv32, ~bvadd~32(4bv32, list_add_~next~0#1.offset))); [2025-02-08 08:32:53,018 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031: SUMMARY for call write~$Pointer$#2(list_add_~next~0#1.base, list_add_~next~0#1.offset, list_add_~new#1.base, list_add_~new#1.offset, 4bv32); srcloc: null [2025-02-08 08:32:53,018 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031: assume !(1bv1 == #valid[list_add_~new#1.base]); [2025-02-08 08:32:53,018 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031: assume !((~bvule~32(~bvadd~32(4bv32, list_add_~new#1.offset), #length[list_add_~new#1.base]) && ~bvule~32(list_add_~new#1.offset, ~bvadd~32(4bv32, list_add_~new#1.offset))) && ~bvule~32(0bv32, list_add_~new#1.offset)); [2025-02-08 08:32:53,018 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032: SUMMARY for call write~$Pointer$#2(list_add_~head#1.base, list_add_~head#1.offset, list_add_~new#1.base, ~bvadd~32(4bv32, list_add_~new#1.offset), 4bv32); srcloc: null [2025-02-08 08:32:53,019 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032: assume !(1bv1 == #valid[list_add_~new#1.base]); [2025-02-08 08:32:53,019 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032: assume !((~bvule~32(~bvadd~32(4bv32, ~bvadd~32(4bv32, list_add_~new#1.offset)), #length[list_add_~new#1.base]) && ~bvule~32(~bvadd~32(4bv32, list_add_~new#1.offset), ~bvadd~32(4bv32, ~bvadd~32(4bv32, list_add_~new#1.offset)))) && ~bvule~32(0bv32, ~bvadd~32(4bv32, list_add_~new#1.offset))); [2025-02-08 08:32:53,019 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1033: havoc list_add_#t~mem4#1.base, list_add_#t~mem4#1.offset, list_add_~new#1.base, list_add_~new#1.offset, list_add_~head#1.base, list_add_~head#1.offset, list_add_~next~0#1.base, list_add_~next~0#1.offset; [2025-02-08 08:32:53,019 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1033-1: SUMMARY for call write~$Pointer$#2(list_add_~new#1.base, list_add_~new#1.offset, list_add_~head#1.base, list_add_~head#1.offset, 4bv32); srcloc: null [2025-02-08 08:32:53,019 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1033-1: assume !(1bv1 == #valid[list_add_~head#1.base]); [2025-02-08 08:32:53,019 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1033-1: assume !((~bvule~32(~bvadd~32(4bv32, list_add_~head#1.offset), #length[list_add_~head#1.base]) && ~bvule~32(list_add_~head#1.offset, ~bvadd~32(4bv32, list_add_~head#1.offset))) && ~bvule~32(0bv32, list_add_~head#1.offset)); [2025-02-08 08:32:53,019 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1059-1: havoc main_#t~post24#1; [2025-02-08 08:32:53,206 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:32:53,206 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:32:55,157 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:32:55,159 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:32:55,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:32:55 BoogieIcfgContainer [2025-02-08 08:32:55,159 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:32:55,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:32:55,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:32:55,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:32:55,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:32:51" (1/3) ... [2025-02-08 08:32:55,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214dc15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:32:55, skipping insertion in model container [2025-02-08 08:32:55,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:51" (2/3) ... [2025-02-08 08:32:55,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214dc15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:32:55, skipping insertion in model container [2025-02-08 08:32:55,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:32:55" (3/3) ... [2025-02-08 08:32:55,170 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2025-02-08 08:32:55,184 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:32:55,186 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_91-arrayloop2_racefree.i that has 2 procedures, 92 locations, 1 initial locations, 11 loop locations, and 40 error locations. [2025-02-08 08:32:55,186 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:32:55,264 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 08:32:55,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 109 transitions, 225 flow [2025-02-08 08:32:55,368 INFO L124 PetriNetUnfolderBase]: 17/121 cut-off events. [2025-02-08 08:32:55,372 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 08:32:55,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 121 events. 17/121 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 407 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 85. Up to 4 conditions per place. [2025-02-08 08:32:55,376 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 109 transitions, 225 flow [2025-02-08 08:32:55,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 108 transitions, 223 flow [2025-02-08 08:32:55,393 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:32:55,406 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;@65248e2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:32:55,407 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2025-02-08 08:32:55,423 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:32:55,424 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2025-02-08 08:32:55,424 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:32:55,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:32:55,425 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 08:32:55,425 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2025-02-08 08:32:55,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:32:55,431 INFO L85 PathProgramCache]: Analyzing trace with hash 629132, now seen corresponding path program 1 times [2025-02-08 08:32:55,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:32:55,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618186258] [2025-02-08 08:32:55,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:32:55,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:55,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:32:55,451 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:32:55,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 08:32:55,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 08:32:55,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 08:32:55,753 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:32:55,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:32:55,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 08:32:55,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:32:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:32:55,856 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:32:55,856 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:32:55,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618186258] [2025-02-08 08:32:55,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618186258] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:32:55,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:32:55,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:32:55,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175664277] [2025-02-08 08:32:55,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:32:55,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:32:55,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:32:55,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:32:55,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:32:56,067 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 109 [2025-02-08 08:32:56,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 108 transitions, 223 flow. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:32:56,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:32:56,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 109 [2025-02-08 08:32:56,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:32:56,493 INFO L124 PetriNetUnfolderBase]: 119/479 cut-off events. [2025-02-08 08:32:56,494 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2025-02-08 08:32:56,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 741 conditions, 479 events. 119/479 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2770 event pairs, 61 based on Foata normal form. 68/429 useless extension candidates. Maximal degree in co-relation 675. Up to 164 conditions per place. [2025-02-08 08:32:56,500 INFO L140 encePairwiseOnDemand]: 90/109 looper letters, 58 selfloop transitions, 4 changer transitions 0/115 dead transitions. [2025-02-08 08:32:56,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 115 transitions, 361 flow [2025-02-08 08:32:56,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:32:56,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:32:56,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 301 transitions. [2025-02-08 08:32:56,548 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6903669724770642 [2025-02-08 08:32:56,550 INFO L175 Difference]: Start difference. First operand has 94 places, 108 transitions, 223 flow. Second operand 4 states and 301 transitions. [2025-02-08 08:32:56,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 115 transitions, 361 flow [2025-02-08 08:32:56,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 115 transitions, 361 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 08:32:56,561 INFO L231 Difference]: Finished difference. Result has 95 places, 93 transitions, 207 flow [2025-02-08 08:32:56,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=207, PETRI_PLACES=95, PETRI_TRANSITIONS=93} [2025-02-08 08:32:56,568 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 1 predicate places. [2025-02-08 08:32:56,569 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 93 transitions, 207 flow [2025-02-08 08:32:56,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:32:56,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:32:56,569 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 08:32:56,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 08:32:56,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:56,774 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2025-02-08 08:32:56,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:32:56,776 INFO L85 PathProgramCache]: Analyzing trace with hash 629133, now seen corresponding path program 1 times [2025-02-08 08:32:56,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:32:56,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1258921323] [2025-02-08 08:32:56,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:32:56,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:56,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:32:56,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:32:56,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 08:32:56,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 08:32:57,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 08:32:57,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:32:57,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:32:57,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 08:32:57,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:32:57,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:32:57,125 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:32:57,125 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:32:57,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258921323] [2025-02-08 08:32:57,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258921323] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:32:57,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:32:57,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:32:57,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907898048] [2025-02-08 08:32:57,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:32:57,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:32:57,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:32:57,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:32:57,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:32:57,279 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 109 [2025-02-08 08:32:57,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 93 transitions, 207 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:32:57,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:32:57,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 109 [2025-02-08 08:32:57,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:32:57,592 INFO L124 PetriNetUnfolderBase]: 121/509 cut-off events. [2025-02-08 08:32:57,592 INFO L125 PetriNetUnfolderBase]: For 20/21 co-relation queries the response was YES. [2025-02-08 08:32:57,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 509 events. 121/509 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2936 event pairs, 100 based on Foata normal form. 3/393 useless extension candidates. Maximal degree in co-relation 740. Up to 257 conditions per place. [2025-02-08 08:32:57,600 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 40 selfloop transitions, 5 changer transitions 0/97 dead transitions. [2025-02-08 08:32:57,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 97 transitions, 311 flow [2025-02-08 08:32:57,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:32:57,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:32:57,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 264 transitions. [2025-02-08 08:32:57,603 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6055045871559633 [2025-02-08 08:32:57,603 INFO L175 Difference]: Start difference. First operand has 95 places, 93 transitions, 207 flow. Second operand 4 states and 264 transitions. [2025-02-08 08:32:57,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 97 transitions, 311 flow [2025-02-08 08:32:57,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 97 transitions, 299 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 08:32:57,607 INFO L231 Difference]: Finished difference. Result has 97 places, 97 transitions, 240 flow [2025-02-08 08:32:57,607 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=97, PETRI_TRANSITIONS=97} [2025-02-08 08:32:57,608 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 3 predicate places. [2025-02-08 08:32:57,608 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 97 transitions, 240 flow [2025-02-08 08:32:57,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:32:57,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:32:57,608 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 08:32:57,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 08:32:57,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:57,809 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2025-02-08 08:32:57,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:32:57,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1563129615, now seen corresponding path program 1 times [2025-02-08 08:32:57,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:32:57,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [501349366] [2025-02-08 08:32:57,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:32:57,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:57,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:32:57,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:32:57,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 08:32:57,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 08:32:58,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 08:32:58,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:32:58,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:32:58,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:32:58,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:32:58,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-08 08:32:58,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:32:58,129 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:32:58,130 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:32:58,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501349366] [2025-02-08 08:32:58,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501349366] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:32:58,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:32:58,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:32:58,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895433977] [2025-02-08 08:32:58,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:32:58,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:32:58,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:32:58,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:32:58,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:32:58,197 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 109 [2025-02-08 08:32:58,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 97 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:32:58,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:32:58,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 109 [2025-02-08 08:32:58,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:32:58,410 INFO L124 PetriNetUnfolderBase]: 121/508 cut-off events. [2025-02-08 08:32:58,410 INFO L125 PetriNetUnfolderBase]: For 14/15 co-relation queries the response was YES. [2025-02-08 08:32:58,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 814 conditions, 508 events. 121/508 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2903 event pairs, 100 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 781. Up to 253 conditions per place. [2025-02-08 08:32:58,415 INFO L140 encePairwiseOnDemand]: 107/109 looper letters, 39 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2025-02-08 08:32:58,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 96 transitions, 320 flow [2025-02-08 08:32:58,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:32:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:32:58,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2025-02-08 08:32:58,417 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6391437308868502 [2025-02-08 08:32:58,417 INFO L175 Difference]: Start difference. First operand has 97 places, 97 transitions, 240 flow. Second operand 3 states and 209 transitions. [2025-02-08 08:32:58,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 96 transitions, 320 flow [2025-02-08 08:32:58,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 96 transitions, 317 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:32:58,421 INFO L231 Difference]: Finished difference. Result has 97 places, 96 transitions, 239 flow [2025-02-08 08:32:58,421 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=239, PETRI_PLACES=97, PETRI_TRANSITIONS=96} [2025-02-08 08:32:58,422 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 3 predicate places. [2025-02-08 08:32:58,422 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 96 transitions, 239 flow [2025-02-08 08:32:58,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:32:58,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:32:58,422 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 08:32:58,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 08:32:58,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:58,626 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2025-02-08 08:32:58,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:32:58,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1563129616, now seen corresponding path program 1 times [2025-02-08 08:32:58,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:32:58,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772816945] [2025-02-08 08:32:58,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:32:58,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:58,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:32:58,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:32:58,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 08:32:58,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 08:32:58,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 08:32:58,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:32:58,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:32:58,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:32:58,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:32:58,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 08:32:58,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:32:58,905 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:32:58,905 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:32:58,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772816945] [2025-02-08 08:32:58,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772816945] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:32:58,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:32:58,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:32:58,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687444874] [2025-02-08 08:32:58,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:32:58,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:32:58,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:32:58,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:32:58,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:32:58,992 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 109 [2025-02-08 08:32:58,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 96 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:32:58,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:32:58,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 109 [2025-02-08 08:32:58,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:32:59,250 INFO L124 PetriNetUnfolderBase]: 121/507 cut-off events. [2025-02-08 08:32:59,250 INFO L125 PetriNetUnfolderBase]: For 15/16 co-relation queries the response was YES. [2025-02-08 08:32:59,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 507 events. 121/507 cut-off events. For 15/16 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2904 event pairs, 100 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 791. Up to 253 conditions per place. [2025-02-08 08:32:59,254 INFO L140 encePairwiseOnDemand]: 107/109 looper letters, 39 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2025-02-08 08:32:59,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 95 transitions, 319 flow [2025-02-08 08:32:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:32:59,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:32:59,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2025-02-08 08:32:59,256 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6391437308868502 [2025-02-08 08:32:59,256 INFO L175 Difference]: Start difference. First operand has 97 places, 96 transitions, 239 flow. Second operand 3 states and 209 transitions. [2025-02-08 08:32:59,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 95 transitions, 319 flow [2025-02-08 08:32:59,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 95 transitions, 317 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:32:59,259 INFO L231 Difference]: Finished difference. Result has 97 places, 95 transitions, 239 flow [2025-02-08 08:32:59,259 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=239, PETRI_PLACES=97, PETRI_TRANSITIONS=95} [2025-02-08 08:32:59,259 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 3 predicate places. [2025-02-08 08:32:59,260 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 95 transitions, 239 flow [2025-02-08 08:32:59,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:32:59,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:32:59,260 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2025-02-08 08:32:59,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 08:32:59,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:59,461 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2025-02-08 08:32:59,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:32:59,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1212378944, now seen corresponding path program 1 times [2025-02-08 08:32:59,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:32:59,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677387541] [2025-02-08 08:32:59,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:32:59,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:59,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:32:59,467 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:32:59,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 08:32:59,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:32:59,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:32:59,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:32:59,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:32:59,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 08:32:59,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:32:59,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:32:59,749 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:32:59,750 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:32:59,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677387541] [2025-02-08 08:32:59,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677387541] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:32:59,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:32:59,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:32:59,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507208686] [2025-02-08 08:32:59,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:32:59,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:32:59,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:32:59,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:32:59,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:32:59,751 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 109 [2025-02-08 08:32:59,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 95 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:32:59,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:32:59,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 109 [2025-02-08 08:32:59,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:32:59,818 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-02-08 08:32:59,818 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 08:32:59,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 11 events. 0/11 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 8 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2025-02-08 08:32:59,819 INFO L140 encePairwiseOnDemand]: 107/109 looper letters, 4 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2025-02-08 08:32:59,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 11 transitions, 50 flow [2025-02-08 08:32:59,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:32:59,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:32:59,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 180 transitions. [2025-02-08 08:32:59,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5504587155963303 [2025-02-08 08:32:59,822 INFO L175 Difference]: Start difference. First operand has 97 places, 95 transitions, 239 flow. Second operand 3 states and 180 transitions. [2025-02-08 08:32:59,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 11 transitions, 50 flow [2025-02-08 08:32:59,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 11 transitions, 34 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-08 08:32:59,823 INFO L231 Difference]: Finished difference. Result has 17 places, 11 transitions, 26 flow [2025-02-08 08:32:59,823 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=26, PETRI_PLACES=17, PETRI_TRANSITIONS=11} [2025-02-08 08:32:59,824 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -77 predicate places. [2025-02-08 08:32:59,824 INFO L471 AbstractCegarLoop]: Abstraction has has 17 places, 11 transitions, 26 flow [2025-02-08 08:32:59,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:32:59,824 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:32:59,824 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:32:59,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 08:33:00,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:33:00,029 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2025-02-08 08:33:00,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:33:00,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1212378424, now seen corresponding path program 1 times [2025-02-08 08:33:00,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:33:00,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698258913] [2025-02-08 08:33:00,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:33:00,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:33:00,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:33:00,034 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:33:00,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 08:33:00,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:33:00,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:33:00,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:33:00,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:33:00,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:33:00,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:33:00,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:33:00,281 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:33:00,281 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:33:00,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698258913] [2025-02-08 08:33:00,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698258913] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:33:00,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:33:00,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:33:00,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639734457] [2025-02-08 08:33:00,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:33:00,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:33:00,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:33:00,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:33:00,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:33:00,340 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 109 [2025-02-08 08:33:00,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 11 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:33:00,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:33:00,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 109 [2025-02-08 08:33:00,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:33:00,410 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-02-08 08:33:00,410 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:33:00,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 9 events. 0/9 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2025-02-08 08:33:00,410 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 4 selfloop transitions, 3 changer transitions 0/9 dead transitions. [2025-02-08 08:33:00,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 9 transitions, 36 flow [2025-02-08 08:33:00,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:33:00,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:33:00,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2025-02-08 08:33:00,413 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5045871559633027 [2025-02-08 08:33:00,413 INFO L175 Difference]: Start difference. First operand has 17 places, 11 transitions, 26 flow. Second operand 3 states and 165 transitions. [2025-02-08 08:33:00,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 9 transitions, 36 flow [2025-02-08 08:33:00,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 9 transitions, 35 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:33:00,414 INFO L231 Difference]: Finished difference. Result has 16 places, 9 transitions, 27 flow [2025-02-08 08:33:00,414 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=21, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=27, PETRI_PLACES=16, PETRI_TRANSITIONS=9} [2025-02-08 08:33:00,415 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -78 predicate places. [2025-02-08 08:33:00,415 INFO L471 AbstractCegarLoop]: Abstraction has has 16 places, 9 transitions, 27 flow [2025-02-08 08:33:00,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:33:00,415 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:33:00,415 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:33:00,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 08:33:00,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:33:00,616 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2025-02-08 08:33:00,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:33:00,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1212378425, now seen corresponding path program 1 times [2025-02-08 08:33:00,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:33:00,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133328361] [2025-02-08 08:33:00,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:33:00,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:33:00,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:33:00,619 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:33:00,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 08:33:00,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:33:00,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:33:00,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:33:00,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:33:00,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 08:33:00,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:33:00,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 08:33:00,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:33:00,980 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:33:00,980 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:33:00,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133328361] [2025-02-08 08:33:00,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133328361] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:33:00,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:33:00,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:33:00,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871787990] [2025-02-08 08:33:00,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:33:00,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:33:00,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:33:00,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:33:00,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:33:01,091 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 109 [2025-02-08 08:33:01,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 9 transitions, 27 flow. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:33:01,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:33:01,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 109 [2025-02-08 08:33:01,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:33:01,170 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2025-02-08 08:33:01,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:33:01,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22 conditions, 7 events. 0/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 2/9 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2025-02-08 08:33:01,170 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2025-02-08 08:33:01,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 7 transitions, 33 flow [2025-02-08 08:33:01,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:33:01,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:33:01,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2025-02-08 08:33:01,172 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5022935779816514 [2025-02-08 08:33:01,172 INFO L175 Difference]: Start difference. First operand has 16 places, 9 transitions, 27 flow. Second operand 4 states and 219 transitions. [2025-02-08 08:33:01,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 7 transitions, 33 flow [2025-02-08 08:33:01,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 7 transitions, 27 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:33:01,172 INFO L231 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2025-02-08 08:33:01,172 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2025-02-08 08:33:01,173 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -79 predicate places. [2025-02-08 08:33:01,173 INFO L471 AbstractCegarLoop]: Abstraction has has 15 places, 0 transitions, 0 flow [2025-02-08 08:33:01,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:33:01,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 46 remaining) [2025-02-08 08:33:01,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 46 remaining) [2025-02-08 08:33:01,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 46 remaining) [2025-02-08 08:33:01,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 46 remaining) [2025-02-08 08:33:01,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 46 remaining) [2025-02-08 08:33:01,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 46 remaining) [2025-02-08 08:33:01,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 46 remaining) [2025-02-08 08:33:01,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 46 remaining) [2025-02-08 08:33:01,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (37 of 46 remaining) [2025-02-08 08:33:01,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 46 remaining) [2025-02-08 08:33:01,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 46 remaining) [2025-02-08 08:33:01,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 46 remaining) [2025-02-08 08:33:01,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 46 remaining) [2025-02-08 08:33:01,177 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 46 remaining) [2025-02-08 08:33:01,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 46 remaining) [2025-02-08 08:33:01,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 46 remaining) [2025-02-08 08:33:01,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONMEMORY_LEAK (15 of 46 remaining) [2025-02-08 08:33:01,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 46 remaining) [2025-02-08 08:33:01,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 46 remaining) [2025-02-08 08:33:01,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 46 remaining) [2025-02-08 08:33:01,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 46 remaining) [2025-02-08 08:33:01,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 46 remaining) [2025-02-08 08:33:01,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 46 remaining) [2025-02-08 08:33:01,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 46 remaining) [2025-02-08 08:33:01,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 46 remaining) [2025-02-08 08:33:01,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 46 remaining) [2025-02-08 08:33:01,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 46 remaining) [2025-02-08 08:33:01,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 46 remaining) [2025-02-08 08:33:01,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 46 remaining) [2025-02-08 08:33:01,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 46 remaining) [2025-02-08 08:33:01,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 46 remaining) [2025-02-08 08:33:01,180 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONMEMORY_LEAK (0 of 46 remaining) [2025-02-08 08:33:01,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 08:33:01,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:33:01,381 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:33:01,386 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:33:01,386 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:33:01,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:33:01 BasicIcfg [2025-02-08 08:33:01,391 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:33:01,391 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:33:01,391 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:33:01,391 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:33:01,392 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:32:55" (3/4) ... [2025-02-08 08:33:01,395 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:33:01,398 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-02-08 08:33:01,402 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 86 nodes and edges [2025-02-08 08:33:01,403 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2025-02-08 08:33:01,403 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2025-02-08 08:33:01,403 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-08 08:33:01,403 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 08:33:01,404 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 08:33:01,404 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 08:33:01,489 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:33:01,490 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:33:01,490 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:33:01,491 INFO L158 Benchmark]: Toolchain (without parser) took 10428.00ms. Allocated memory was 83.9MB in the beginning and 536.9MB in the end (delta: 453.0MB). Free memory was 57.1MB in the beginning and 373.4MB in the end (delta: -316.3MB). Peak memory consumption was 135.3MB. Max. memory is 16.1GB. [2025-02-08 08:33:01,491 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:33:01,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 700.88ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 43.9MB in the end (delta: 13.0MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2025-02-08 08:33:01,492 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.49ms. Allocated memory is still 83.9MB. Free memory was 43.9MB in the beginning and 40.6MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:33:01,493 INFO L158 Benchmark]: Boogie Preprocessor took 87.61ms. Allocated memory is still 83.9MB. Free memory was 40.6MB in the beginning and 36.0MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:33:01,493 INFO L158 Benchmark]: IcfgBuilder took 3247.20ms. Allocated memory was 83.9MB in the beginning and 318.8MB in the end (delta: 234.9MB). Free memory was 36.0MB in the beginning and 213.8MB in the end (delta: -177.8MB). Peak memory consumption was 175.9MB. Max. memory is 16.1GB. [2025-02-08 08:33:01,494 INFO L158 Benchmark]: TraceAbstraction took 6228.31ms. Allocated memory was 318.8MB in the beginning and 536.9MB in the end (delta: 218.1MB). Free memory was 213.8MB in the beginning and 379.9MB in the end (delta: -166.1MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2025-02-08 08:33:01,494 INFO L158 Benchmark]: Witness Printer took 98.82ms. Allocated memory is still 536.9MB. Free memory was 379.9MB in the beginning and 373.4MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:33:01,496 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 700.88ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 43.9MB in the end (delta: 13.0MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.49ms. Allocated memory is still 83.9MB. Free memory was 43.9MB in the beginning and 40.6MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 87.61ms. Allocated memory is still 83.9MB. Free memory was 40.6MB in the beginning and 36.0MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 3247.20ms. Allocated memory was 83.9MB in the beginning and 318.8MB in the end (delta: 234.9MB). Free memory was 36.0MB in the beginning and 213.8MB in the end (delta: -177.8MB). Peak memory consumption was 175.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6228.31ms. Allocated memory was 318.8MB in the beginning and 536.9MB in the end (delta: 218.1MB). Free memory was 213.8MB in the beginning and 379.9MB in the end (delta: -166.1MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * Witness Printer took 98.82ms. Allocated memory is still 536.9MB. Free memory was 379.9MB in the beginning and 373.4MB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1055]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 998]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 151 locations, 46 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.1s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 474 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 234 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 704 IncrementalHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 54 mSDtfsCounter, 704 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=240occurred in iteration=2, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 115 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2262 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 40 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 08:33:01,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE