./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.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_90-arrayloop2_racing.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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:32:38,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:32:38,935 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:32:38,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:32:38,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:32:38,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:32:38,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:32:38,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:32:38,973 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:32:38,973 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:32:38,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:32:38,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:32:38,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:32:38,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:32:38,974 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:32:38,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:32:38,974 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:32:38,974 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:32:38,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:32:38,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:32:38,975 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:32:38,975 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:32:38,975 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:32:38,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:32:38,975 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:32:38,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:32:38,976 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:32:38,976 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:32:38,976 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:32:38,976 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:32:38,976 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:32:38,976 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:32:38,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:32:38,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:32:38,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:32:38,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:32:38,976 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:32:38,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:32:38,976 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:32:38,977 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:32:38,977 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:32:38,977 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:32:38,977 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 -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2025-02-08 08:32:39,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:32:39,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:32:39,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:32:39,292 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:32:39,292 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:32:39,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-02-08 08:32:40,596 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c359fa323/1263ebe382f04a8fb8aa62afd466e783/FLAG619501c38 [2025-02-08 08:32:40,964 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:32:40,965 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-02-08 08:32:40,981 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c359fa323/1263ebe382f04a8fb8aa62afd466e783/FLAG619501c38 [2025-02-08 08:32:40,997 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c359fa323/1263ebe382f04a8fb8aa62afd466e783 [2025-02-08 08:32:40,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:32:41,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:32:41,002 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:32:41,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:32:41,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:32:41,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:32:40" (1/1) ... [2025-02-08 08:32:41,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@615fef50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:41, skipping insertion in model container [2025-02-08 08:32:41,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:32:40" (1/1) ... [2025-02-08 08:32:41,052 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:32:41,514 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:41,515 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:41,515 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:41,516 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:41,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:32:41,597 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 08:32:41,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@18f080d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:41, skipping insertion in model container [2025-02-08 08:32:41,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:32:41,598 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 08:32:41,600 INFO L158 Benchmark]: Toolchain (without parser) took 598.96ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 93.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:32:41,600 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:32:41,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 596.75ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 93.5MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:32:41,605 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 596.75ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 93.5MB in the end (delta: 17.3MB). 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_90-arrayloop2_racing.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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:32:43,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:32:43,874 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 08:32:43,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:32:43,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:32:43,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:32:43,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:32:43,901 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:32:43,902 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:32:43,902 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:32:43,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:32:43,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:32:43,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:32:43,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:32:43,903 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:32:43,903 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:32:43,903 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:32:43,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:32:43,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:32:43,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:32:43,903 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:32:43,903 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:32:43,904 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:32:43,904 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:32:43,904 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:32:43,904 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 08:32:43,904 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 08:32:43,904 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:32:43,904 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:32:43,905 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:32:43,905 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:32:43,905 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:32:43,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:32:43,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:32:43,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:32:43,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:32:43,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:32:43,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:32:43,906 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 08:32:43,906 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 08:32:43,906 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:32:43,906 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:32:43,906 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:32:43,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:32:43,906 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 -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2025-02-08 08:32:44,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:32:44,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:32:44,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:32:44,206 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:32:44,206 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:32:44,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-02-08 08:32:45,510 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f9a549317/f61c460a889a479091ddc7041bd17503/FLAGf2e249312 [2025-02-08 08:32:45,840 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:32:45,840 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-02-08 08:32:45,864 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f9a549317/f61c460a889a479091ddc7041bd17503/FLAGf2e249312 [2025-02-08 08:32:45,882 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f9a549317/f61c460a889a479091ddc7041bd17503 [2025-02-08 08:32:45,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:32:45,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:32:45,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:32:45,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:32:45,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:32:45,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:32:45" (1/1) ... [2025-02-08 08:32:45,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@275aee97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:45, skipping insertion in model container [2025-02-08 08:32:45,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:32:45" (1/1) ... [2025-02-08 08:32:45,939 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:32:46,432 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,433 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,434 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,434 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:32:46,537 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 08:32:46,549 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:32:46,576 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,576 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,577 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,577 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:32:46,629 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:32:46,699 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,701 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,701 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,701 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:32:46,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:32:46,773 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:32:46,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46 WrapperNode [2025-02-08 08:32:46,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:32:46,776 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:32:46,776 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:32:46,776 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:32:46,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,849 INFO L138 Inliner]: procedures = 284, calls = 143, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 355 [2025-02-08 08:32:46,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:32:46,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:32:46,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:32:46,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:32:46,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,874 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,903 INFO L175 MemorySlicer]: Split 105 memory accesses to 5 slices as follows [2, 94, 5, 2, 2]. 90 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 70, 5, 0, 0]. The 15 writes are split as follows [0, 13, 0, 1, 1]. [2025-02-08 08:32:46,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,928 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,930 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,937 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:32:46,954 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:32:46,954 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:32:46,954 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:32:46,956 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (1/1) ... [2025-02-08 08:32:46,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:32:46,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:32:46,991 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 08:32:46,994 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 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-02-08 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-02-08 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-02-08 08:32:47,018 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-02-08 08:32:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-02-08 08:32:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-02-08 08:32:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-02-08 08:32:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2025-02-08 08:32:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 08:32:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-02-08 08:32:47,022 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-02-08 08:32:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 08:32:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 08:32:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:32:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 08:32:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 08:32:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 08:32:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 08:32:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 08:32:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:32:47,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:32:47,023 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 08:32:47,234 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:32:47,236 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:32:48,285 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 08:32:48,286 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 08:32:48,286 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029: havoc list_add_#t~mem4#1.base, list_add_#t~mem4#1.offset; [2025-02-08 08:32:48,286 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 08:32:48,286 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$#1(list_add_~head#1.base, list_add_~head#1.offset, 4bv32); srcloc: null [2025-02-08 08:32:48,286 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1029-2: assume !(1bv1 == #valid[list_add_~head#1.base]); [2025-02-08 08:32:48,287 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 08:32:48,287 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1030: SUMMARY for call write~$Pointer$#1(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 08:32:48,287 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1030: assume !(1bv1 == #valid[list_add_~next~0#1.base]); [2025-02-08 08:32:48,287 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 08:32:48,287 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1080-1: havoc main_#t~post42#1; [2025-02-08 08:32:48,287 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1080-2: main_~j~2#1 := ~bvadd~32(1bv32, main_#t~post42#1); [2025-02-08 08:32:48,287 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1080-3: assume { :end_inline_list_add } true;main_#t~post42#1 := main_~j~2#1; [2025-02-08 08:32:48,288 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1080-4: 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 08:32:48,288 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1080-5: 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 08:32:48,288 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1080-6: 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~ret41#1.base, ~bvadd~32(4bv32, main_#t~ret41#1.offset), ~#c~0.base, ~bvadd~32(~#c~0.offset, ~bvmul~32(8bv32, main_~i~0#1)); [2025-02-08 08:32:48,288 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1080-7: havoc new_#in~x#1; [2025-02-08 08:32:48,288 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1080-8: 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 08:32:48,288 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1080-9: main_#t~ret41#1.base, main_#t~ret41#1.offset := new_#res#1.base, new_#res#1.offset; [2025-02-08 08:32:48,288 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031: SUMMARY for call write~$Pointer$#1(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 08:32:48,289 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1031: assume !(1bv1 == #valid[list_add_~new#1.base]); [2025-02-08 08:32:48,289 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 08:32:48,289 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032: SUMMARY for call write~$Pointer$#1(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 08:32:48,290 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1032: assume !(1bv1 == #valid[list_add_~new#1.base]); [2025-02-08 08:32:48,290 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 08:32:48,290 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-02-08 08:32:48,290 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2025-02-08 08:32:48,290 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-02-08 08:32:48,290 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-3: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2025-02-08 08:32:48,291 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 08:32:48,291 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1033-1: SUMMARY for call write~$Pointer$#1(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 08:32:48,292 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1033-1: assume !(1bv1 == #valid[list_add_~head#1.base]); [2025-02-08 08:32:48,292 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 08:32:48,293 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:32:48,293 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:32:50,192 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:32:50,192 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:32:50,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:32:50 BoogieIcfgContainer [2025-02-08 08:32:50,196 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:32:50,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:32:50,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:32:50,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:32:50,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:32:45" (1/3) ... [2025-02-08 08:32:50,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49787fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:32:50, skipping insertion in model container [2025-02-08 08:32:50,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:32:46" (2/3) ... [2025-02-08 08:32:50,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49787fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:32:50, skipping insertion in model container [2025-02-08 08:32:50,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:32:50" (3/3) ... [2025-02-08 08:32:50,205 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2025-02-08 08:32:50,220 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:32:50,221 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_90-arrayloop2_racing.i that has 3 procedures, 162 locations, 1 initial locations, 20 loop locations, and 59 error locations. [2025-02-08 08:32:50,221 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:32:50,349 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-02-08 08:32:50,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 198 transitions, 416 flow [2025-02-08 08:32:50,529 INFO L124 PetriNetUnfolderBase]: 54/337 cut-off events. [2025-02-08 08:32:50,535 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-08 08:32:50,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 337 events. 54/337 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1856 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 195. Up to 8 conditions per place. [2025-02-08 08:32:50,545 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 198 transitions, 416 flow [2025-02-08 08:32:50,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 197 transitions, 414 flow [2025-02-08 08:32:50,568 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:32:50,580 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;@180bcf14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:32:50,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2025-02-08 08:32:50,591 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:32:50,592 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2025-02-08 08:32:50,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:32:50,592 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:32:50,593 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 08:32:50,593 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 78 more)] === [2025-02-08 08:32:50,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:32:50,598 INFO L85 PathProgramCache]: Analyzing trace with hash 932310, now seen corresponding path program 1 times [2025-02-08 08:32:50,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:32:50,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [164420801] [2025-02-08 08:32:50,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:32:50,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:50,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:32:50,616 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 08:32:50,618 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 08:32:50,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 08:32:50,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 08:32:50,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:32:50,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:32:50,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 08:32:50,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:32:51,015 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 08:32:51,016 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:32:51,016 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:32:51,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164420801] [2025-02-08 08:32:51,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164420801] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:32:51,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:32:51,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:32:51,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684779193] [2025-02-08 08:32:51,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:32:51,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:32:51,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:32:51,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:32:51,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:32:51,379 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 198 [2025-02-08 08:32:51,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 197 transitions, 414 flow. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 08:32:51,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:32:51,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 198 [2025-02-08 08:32:51,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:32:53,908 INFO L124 PetriNetUnfolderBase]: 6916/15896 cut-off events. [2025-02-08 08:32:53,909 INFO L125 PetriNetUnfolderBase]: For 231/233 co-relation queries the response was YES. [2025-02-08 08:32:53,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26383 conditions, 15896 events. 6916/15896 cut-off events. For 231/233 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 152161 event pairs, 4107 based on Foata normal form. 3662/17361 useless extension candidates. Maximal degree in co-relation 25150. Up to 7201 conditions per place. [2025-02-08 08:32:54,059 INFO L140 encePairwiseOnDemand]: 166/198 looper letters, 112 selfloop transitions, 4 changer transitions 0/213 dead transitions. [2025-02-08 08:32:54,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 213 transitions, 678 flow [2025-02-08 08:32:54,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:32:54,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:32:54,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 556 transitions. [2025-02-08 08:32:54,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.702020202020202 [2025-02-08 08:32:54,078 INFO L175 Difference]: Start difference. First operand has 167 places, 197 transitions, 414 flow. Second operand 4 states and 556 transitions. [2025-02-08 08:32:54,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 213 transitions, 678 flow [2025-02-08 08:32:54,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 213 transitions, 678 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 08:32:54,094 INFO L231 Difference]: Finished difference. Result has 167 places, 169 transitions, 374 flow [2025-02-08 08:32:54,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=374, PETRI_PLACES=167, PETRI_TRANSITIONS=169} [2025-02-08 08:32:54,101 INFO L279 CegarLoopForPetriNet]: 167 programPoint places, 0 predicate places. [2025-02-08 08:32:54,102 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 169 transitions, 374 flow [2025-02-08 08:32:54,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 08:32:54,103 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:32:54,103 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 08:32:54,118 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 08:32:54,308 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 08:32:54,308 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 78 more)] === [2025-02-08 08:32:54,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:32:54,309 INFO L85 PathProgramCache]: Analyzing trace with hash 932311, now seen corresponding path program 1 times [2025-02-08 08:32:54,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:32:54,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1670299031] [2025-02-08 08:32:54,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:32:54,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:54,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:32:54,312 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 08:32:54,313 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 08:32:54,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 08:32:54,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 08:32:54,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:32:54,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:32:54,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 08:32:54,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:32:54,681 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 08:32:54,681 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:32:54,682 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:32:54,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670299031] [2025-02-08 08:32:54,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670299031] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:32:54,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:32:54,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:32:54,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157164374] [2025-02-08 08:32:54,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:32:54,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:32:54,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:32:54,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:32:54,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:32:54,935 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 198 [2025-02-08 08:32:54,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 169 transitions, 374 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 08:32:54,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:32:54,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 198 [2025-02-08 08:32:54,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:32:56,774 INFO L124 PetriNetUnfolderBase]: 6853/16813 cut-off events. [2025-02-08 08:32:56,774 INFO L125 PetriNetUnfolderBase]: For 705/707 co-relation queries the response was YES. [2025-02-08 08:32:56,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28076 conditions, 16813 events. 6853/16813 cut-off events. For 705/707 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 166788 event pairs, 5821 based on Foata normal form. 3/14392 useless extension candidates. Maximal degree in co-relation 26749. Up to 10128 conditions per place. [2025-02-08 08:32:56,913 INFO L140 encePairwiseOnDemand]: 190/198 looper letters, 71 selfloop transitions, 5 changer transitions 0/173 dead transitions. [2025-02-08 08:32:56,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 173 transitions, 540 flow [2025-02-08 08:32:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:32:56,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:32:56,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 475 transitions. [2025-02-08 08:32:56,917 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5997474747474747 [2025-02-08 08:32:56,917 INFO L175 Difference]: Start difference. First operand has 167 places, 169 transitions, 374 flow. Second operand 4 states and 475 transitions. [2025-02-08 08:32:56,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 173 transitions, 540 flow [2025-02-08 08:32:56,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 173 transitions, 528 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 08:32:56,926 INFO L231 Difference]: Finished difference. Result has 169 places, 173 transitions, 407 flow [2025-02-08 08:32:56,926 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=407, PETRI_PLACES=169, PETRI_TRANSITIONS=173} [2025-02-08 08:32:56,927 INFO L279 CegarLoopForPetriNet]: 167 programPoint places, 2 predicate places. [2025-02-08 08:32:56,927 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 173 transitions, 407 flow [2025-02-08 08:32:56,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 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 08:32:56,928 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:32:56,928 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 08:32:56,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 08:32:57,128 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 08:32:57,130 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 78 more)] === [2025-02-08 08:32:57,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:32:57,130 INFO L85 PathProgramCache]: Analyzing trace with hash 2005384919, now seen corresponding path program 1 times [2025-02-08 08:32:57,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:32:57,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536160602] [2025-02-08 08:32:57,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:32:57,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:57,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:32:57,136 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 08:32:57,137 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 08:32:57,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 08:32:57,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 08:32:57,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:32:57,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:32:57,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:32:57,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:32:57,440 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 08:32:57,447 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 08:32:57,448 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:32:57,448 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:32:57,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536160602] [2025-02-08 08:32:57,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536160602] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:32:57,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:32:57,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:32:57,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914341977] [2025-02-08 08:32:57,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:32:57,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:32:57,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:32:57,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:32:57,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:32:57,565 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 198 [2025-02-08 08:32:57,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 173 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 08:32:57,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:32:57,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 198 [2025-02-08 08:32:57,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:32:59,501 INFO L124 PetriNetUnfolderBase]: 6853/16812 cut-off events. [2025-02-08 08:32:59,501 INFO L125 PetriNetUnfolderBase]: For 240/242 co-relation queries the response was YES. [2025-02-08 08:32:59,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27600 conditions, 16812 events. 6853/16812 cut-off events. For 240/242 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 166814 event pairs, 5821 based on Foata normal form. 0/14386 useless extension candidates. Maximal degree in co-relation 27566. Up to 10124 conditions per place. [2025-02-08 08:32:59,604 INFO L140 encePairwiseOnDemand]: 196/198 looper letters, 70 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2025-02-08 08:32:59,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 172 transitions, 549 flow [2025-02-08 08:32:59,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:32:59,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:32:59,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2025-02-08 08:32:59,607 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6313131313131313 [2025-02-08 08:32:59,609 INFO L175 Difference]: Start difference. First operand has 169 places, 173 transitions, 407 flow. Second operand 3 states and 375 transitions. [2025-02-08 08:32:59,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 172 transitions, 549 flow [2025-02-08 08:32:59,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 172 transitions, 546 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:32:59,619 INFO L231 Difference]: Finished difference. Result has 169 places, 172 transitions, 406 flow [2025-02-08 08:32:59,619 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=406, PETRI_PLACES=169, PETRI_TRANSITIONS=172} [2025-02-08 08:32:59,623 INFO L279 CegarLoopForPetriNet]: 167 programPoint places, 2 predicate places. [2025-02-08 08:32:59,623 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 172 transitions, 406 flow [2025-02-08 08:32:59,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 08:32:59,624 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:32:59,624 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 08:32:59,641 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 08:32:59,824 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 08:32:59,826 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 78 more)] === [2025-02-08 08:32:59,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:32:59,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2005384920, now seen corresponding path program 1 times [2025-02-08 08:32:59,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:32:59,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173182355] [2025-02-08 08:32:59,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:32:59,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:32:59,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:32:59,832 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 08:32:59,835 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 08:32:59,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 08:33:00,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 08:33:00,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:33:00,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:33:00,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:33:00,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:33:00,128 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 08:33:00,143 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 08:33:00,143 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:33:00,143 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:33:00,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173182355] [2025-02-08 08:33:00,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173182355] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:33:00,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:33:00,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:33:00,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317778123] [2025-02-08 08:33:00,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:33:00,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:33:00,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:33:00,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:33:00,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:33:00,319 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 198 [2025-02-08 08:33:00,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 172 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 08:33:00,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:33:00,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 198 [2025-02-08 08:33:00,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:33:01,525 INFO L124 PetriNetUnfolderBase]: 6853/16811 cut-off events. [2025-02-08 08:33:01,525 INFO L125 PetriNetUnfolderBase]: For 241/243 co-relation queries the response was YES. [2025-02-08 08:33:01,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27599 conditions, 16811 events. 6853/16811 cut-off events. For 241/243 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 166798 event pairs, 5821 based on Foata normal form. 0/14387 useless extension candidates. Maximal degree in co-relation 27576. Up to 10124 conditions per place. [2025-02-08 08:33:01,631 INFO L140 encePairwiseOnDemand]: 196/198 looper letters, 70 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2025-02-08 08:33:01,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 171 transitions, 548 flow [2025-02-08 08:33:01,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:33:01,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:33:01,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2025-02-08 08:33:01,633 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6313131313131313 [2025-02-08 08:33:01,633 INFO L175 Difference]: Start difference. First operand has 169 places, 172 transitions, 406 flow. Second operand 3 states and 375 transitions. [2025-02-08 08:33:01,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 171 transitions, 548 flow [2025-02-08 08:33:01,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 171 transitions, 546 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:33:01,641 INFO L231 Difference]: Finished difference. Result has 169 places, 171 transitions, 406 flow [2025-02-08 08:33:01,642 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=406, PETRI_PLACES=169, PETRI_TRANSITIONS=171} [2025-02-08 08:33:01,643 INFO L279 CegarLoopForPetriNet]: 167 programPoint places, 2 predicate places. [2025-02-08 08:33:01,644 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 171 transitions, 406 flow [2025-02-08 08:33:01,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 08:33:01,644 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:33:01,644 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:33:01,658 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 08:33:01,845 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 08:33:01,845 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 78 more)] === [2025-02-08 08:33:01,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:33:01,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2037391264, now seen corresponding path program 1 times [2025-02-08 08:33:01,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:33:01,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1751490817] [2025-02-08 08:33:01,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:33:01,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:33:01,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:33:01,852 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 08:33:01,854 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 08:33:01,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:33:02,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:33:02,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:33:02,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:33:02,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 08:33:02,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:33:02,123 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 08:33:02,137 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 08:33:02,138 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:33:02,138 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:33:02,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751490817] [2025-02-08 08:33:02,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751490817] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:33:02,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:33:02,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:33:02,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836648671] [2025-02-08 08:33:02,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:33:02,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:33:02,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:33:02,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:33:02,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:33:02,291 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 198 [2025-02-08 08:33:02,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 171 transitions, 406 flow. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 08:33:02,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:33:02,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 198 [2025-02-08 08:33:02,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:33:03,328 INFO L124 PetriNetUnfolderBase]: 6853/16809 cut-off events. [2025-02-08 08:33:03,328 INFO L125 PetriNetUnfolderBase]: For 236/238 co-relation queries the response was YES. [2025-02-08 08:33:03,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27602 conditions, 16809 events. 6853/16809 cut-off events. For 236/238 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 166852 event pairs, 5821 based on Foata normal form. 1/14389 useless extension candidates. Maximal degree in co-relation 27578. Up to 10124 conditions per place. [2025-02-08 08:33:03,437 INFO L140 encePairwiseOnDemand]: 192/198 looper letters, 68 selfloop transitions, 6 changer transitions 0/169 dead transitions. [2025-02-08 08:33:03,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 169 transitions, 550 flow [2025-02-08 08:33:03,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:33:03,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:33:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 552 transitions. [2025-02-08 08:33:03,439 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5575757575757576 [2025-02-08 08:33:03,439 INFO L175 Difference]: Start difference. First operand has 169 places, 171 transitions, 406 flow. Second operand 5 states and 552 transitions. [2025-02-08 08:33:03,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 169 transitions, 550 flow [2025-02-08 08:33:03,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 169 transitions, 548 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:33:03,444 INFO L231 Difference]: Finished difference. Result has 170 places, 169 transitions, 412 flow [2025-02-08 08:33:03,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=412, PETRI_PLACES=170, PETRI_TRANSITIONS=169} [2025-02-08 08:33:03,444 INFO L279 CegarLoopForPetriNet]: 167 programPoint places, 3 predicate places. [2025-02-08 08:33:03,444 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 169 transitions, 412 flow [2025-02-08 08:33:03,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 08:33:03,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:33:03,445 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2025-02-08 08:33:03,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 08:33:03,645 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 08:33:03,646 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 78 more)] === [2025-02-08 08:33:03,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:33:03,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2037389649, now seen corresponding path program 1 times [2025-02-08 08:33:03,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:33:03,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130174545] [2025-02-08 08:33:03,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:33:03,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:33:03,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:33:03,650 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 08:33:03,652 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 08:33:03,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:33:03,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:33:03,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:33:03,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:33:03,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 08:33:03,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:33:03,880 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 08:33:03,880 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:33:03,880 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:33:03,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130174545] [2025-02-08 08:33:03,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130174545] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:33:03,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:33:03,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:33:03,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60966408] [2025-02-08 08:33:03,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:33:03,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:33:03,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:33:03,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:33:03,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:33:03,881 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 198 [2025-02-08 08:33:03,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 169 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 08:33:03,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:33:03,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 198 [2025-02-08 08:33:03,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:33:03,917 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-02-08 08:33:03,917 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 08:33:03,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 9 events. 0/9 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2025-02-08 08:33:03,917 INFO L140 encePairwiseOnDemand]: 196/198 looper letters, 4 selfloop transitions, 1 changer transitions 0/9 dead transitions. [2025-02-08 08:33:03,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 9 transitions, 53 flow [2025-02-08 08:33:03,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:33:03,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:33:03,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions. [2025-02-08 08:33:03,921 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5303030303030303 [2025-02-08 08:33:03,921 INFO L175 Difference]: Start difference. First operand has 170 places, 169 transitions, 412 flow. Second operand 3 states and 315 transitions. [2025-02-08 08:33:03,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 9 transitions, 53 flow [2025-02-08 08:33:03,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 9 transitions, 31 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-02-08 08:33:03,922 INFO L231 Difference]: Finished difference. Result has 17 places, 9 transitions, 23 flow [2025-02-08 08:33:03,923 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=21, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=23, PETRI_PLACES=17, PETRI_TRANSITIONS=9} [2025-02-08 08:33:03,923 INFO L279 CegarLoopForPetriNet]: 167 programPoint places, -150 predicate places. [2025-02-08 08:33:03,923 INFO L471 AbstractCegarLoop]: Abstraction has has 17 places, 9 transitions, 23 flow [2025-02-08 08:33:03,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 08:33:03,924 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:33:03,924 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:33:03,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 08:33:04,124 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 08:33:04,124 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 78 more)] === [2025-02-08 08:33:04,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:33:04,125 INFO L85 PathProgramCache]: Analyzing trace with hash 2037391265, now seen corresponding path program 1 times [2025-02-08 08:33:04,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:33:04,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1659258606] [2025-02-08 08:33:04,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:33:04,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:33:04,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:33:04,127 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 08:33:04,129 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 08:33:04,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:33:04,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:33:04,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:33:04,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:33:04,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 08:33:04,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:33:04,377 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 08:33:04,402 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 08:33:04,402 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:33:04,402 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:33:04,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659258606] [2025-02-08 08:33:04,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659258606] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:33:04,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:33:04,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:33:04,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123637270] [2025-02-08 08:33:04,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:33:04,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:33:04,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:33:04,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:33:04,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:33:04,527 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 198 [2025-02-08 08:33:04,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 9 transitions, 23 flow. Second operand has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 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 08:33:04,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:33:04,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 198 [2025-02-08 08:33:04,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:33:04,582 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2025-02-08 08:33:04,582 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 08:33:04,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 7 events. 0/7 cut-off events. For 1/1 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 08:33:04,582 INFO L140 encePairwiseOnDemand]: 194/198 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2025-02-08 08:33:04,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 7 transitions, 29 flow [2025-02-08 08:33:04,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:33:04,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:33:04,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 399 transitions. [2025-02-08 08:33:04,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5037878787878788 [2025-02-08 08:33:04,584 INFO L175 Difference]: Start difference. First operand has 17 places, 9 transitions, 23 flow. Second operand 4 states and 399 transitions. [2025-02-08 08:33:04,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 7 transitions, 29 flow [2025-02-08 08:33:04,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 7 transitions, 28 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:33:04,585 INFO L231 Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow [2025-02-08 08:33:04,585 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=14, 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=17, PETRI_TRANSITIONS=0} [2025-02-08 08:33:04,585 INFO L279 CegarLoopForPetriNet]: 167 programPoint places, -150 predicate places. [2025-02-08 08:33:04,585 INFO L471 AbstractCegarLoop]: Abstraction has has 17 places, 0 transitions, 0 flow [2025-02-08 08:33:04,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 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 08:33:04,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 81 remaining) [2025-02-08 08:33:04,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 81 remaining) [2025-02-08 08:33:04,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 81 remaining) [2025-02-08 08:33:04,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 81 remaining) [2025-02-08 08:33:04,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 81 remaining) [2025-02-08 08:33:04,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 81 remaining) [2025-02-08 08:33:04,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 81 remaining) [2025-02-08 08:33:04,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr10ASSERT_VIOLATIONMEMORY_LEAK (66 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (51 of 81 remaining) [2025-02-08 08:33:04,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr10ASSERT_VIOLATIONMEMORY_LEAK (30 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 81 remaining) [2025-02-08 08:33:04,590 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr10ASSERT_VIOLATIONMEMORY_LEAK (15 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 81 remaining) [2025-02-08 08:33:04,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 81 remaining) [2025-02-08 08:33:04,592 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 81 remaining) [2025-02-08 08:33:04,592 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1_funErr10ASSERT_VIOLATIONMEMORY_LEAK (0 of 81 remaining) [2025-02-08 08:33:04,608 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 08:33:04,792 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 08:33:04,793 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:33:04,797 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:33:04,797 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:33:04,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:33:04 BasicIcfg [2025-02-08 08:33:04,804 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:33:04,804 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:33:04,804 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:33:04,805 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:33:04,805 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:32:50" (3/4) ... [2025-02-08 08:33:04,807 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:33:04,810 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t2_fun [2025-02-08 08:33:04,810 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t1_fun [2025-02-08 08:33:04,818 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 98 nodes and edges [2025-02-08 08:33:04,819 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2025-02-08 08:33:04,819 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2025-02-08 08:33:04,820 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-08 08:33:04,820 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 08:33:04,820 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 08:33:04,820 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 08:33:04,910 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:33:04,911 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:33:04,911 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:33:04,913 INFO L158 Benchmark]: Toolchain (without parser) took 19023.59ms. Allocated memory was 83.9MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 54.9MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 326.1MB. Max. memory is 16.1GB. [2025-02-08 08:33:04,913 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory was 53.8MB in the beginning and 53.8MB in the end (delta: 17.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:33:04,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 885.73ms. Allocated memory is still 83.9MB. Free memory was 54.7MB in the beginning and 39.4MB in the end (delta: 15.3MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2025-02-08 08:33:04,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.95ms. Allocated memory is still 83.9MB. Free memory was 39.4MB in the beginning and 35.8MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:33:04,914 INFO L158 Benchmark]: Boogie Preprocessor took 102.91ms. Allocated memory is still 83.9MB. Free memory was 35.8MB in the beginning and 30.2MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:33:04,915 INFO L158 Benchmark]: IcfgBuilder took 3242.03ms. Allocated memory was 83.9MB in the beginning and 352.3MB in the end (delta: 268.4MB). Free memory was 30.2MB in the beginning and 149.7MB in the end (delta: -119.4MB). Peak memory consumption was 191.3MB. Max. memory is 16.1GB. [2025-02-08 08:33:04,915 INFO L158 Benchmark]: TraceAbstraction took 14605.85ms. Allocated memory was 352.3MB in the beginning and 1.9GB in the end (delta: 1.5GB). Free memory was 149.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 146.4MB. Max. memory is 16.1GB. [2025-02-08 08:33:04,915 INFO L158 Benchmark]: Witness Printer took 106.56ms. Allocated memory is still 1.9GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:33:04,916 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory was 53.8MB in the beginning and 53.8MB in the end (delta: 17.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 885.73ms. Allocated memory is still 83.9MB. Free memory was 54.7MB in the beginning and 39.4MB in the end (delta: 15.3MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.95ms. Allocated memory is still 83.9MB. Free memory was 39.4MB in the beginning and 35.8MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.91ms. Allocated memory is still 83.9MB. Free memory was 35.8MB in the beginning and 30.2MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 3242.03ms. Allocated memory was 83.9MB in the beginning and 352.3MB in the end (delta: 268.4MB). Free memory was 30.2MB in the beginning and 149.7MB in the end (delta: -119.4MB). Peak memory consumption was 191.3MB. Max. memory is 16.1GB. * TraceAbstraction took 14605.85ms. Allocated memory was 352.3MB in the beginning and 1.9GB in the end (delta: 1.5GB). Free memory was 149.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 146.4MB. Max. memory is 16.1GB. * Witness Printer took 106.56ms. Allocated memory is still 1.9GB. Free memory was 1.5GB in the beginning and 1.5GB 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: -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 - 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: 1075]: 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: 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 5 procedures, 280 locations, 81 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: 14.4s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 800 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 412 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1486 IncrementalHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 90 mSDtfsCounter, 1486 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=414occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 1.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2262 ConjunctsInSsa, 36 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 59 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 08:33:04,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE