./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:14:25,342 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:14:25,384 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:14:25,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:14:25,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:14:25,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:14:25,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:14:25,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:14:25,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:14:25,412 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:14:25,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:14:25,413 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:14:25,413 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:14:25,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:14:25,413 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:14:25,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:14:25,414 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:14:25,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:14:25,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:14:25,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:14:25,414 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:14:25,414 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:14:25,414 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:14:25,415 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:14:25,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:14:25,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:14:25,415 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 -> e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 [2025-02-06 12:14:25,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:14:25,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:14:25,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:14:25,620 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:14:25,620 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:14:25,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2025-02-06 12:14:26,717 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/367f10ec9/7f43b394789649119024bf4bce270005/FLAGcc1f45614 [2025-02-06 12:14:27,081 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:14:27,082 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2025-02-06 12:14:27,101 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/367f10ec9/7f43b394789649119024bf4bce270005/FLAGcc1f45614 [2025-02-06 12:14:27,115 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/367f10ec9/7f43b394789649119024bf4bce270005 [2025-02-06 12:14:27,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:14:27,118 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:14:27,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:14:27,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:14:27,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:14:27,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:14:27" (1/1) ... [2025-02-06 12:14:27,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320d7bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:27, skipping insertion in model container [2025-02-06 12:14:27,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:14:27" (1/1) ... [2025-02-06 12:14:27,155 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:14:27,530 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,555 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,556 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,558 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,562 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,583 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,583 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,584 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,584 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,586 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,588 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,589 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,589 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,595 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,596 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,600 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,601 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,602 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,605 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,607 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:27,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:14:27,621 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) [2025-02-06 12:14:27,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@59efa25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:27, skipping insertion in model container [2025-02-06 12:14:27,621 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:14:27,622 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 12:14:27,623 INFO L158 Benchmark]: Toolchain (without parser) took 504.37ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 104.6MB in the end (delta: 22.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:14:27,623 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 226.5MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:14:27,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 502.58ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 104.6MB in the end (delta: 22.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:14:27,627 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 226.5MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 502.58ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 104.6MB in the end (delta: 22.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:14:29,339 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:14:29,424 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-06 12:14:29,446 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:14:29,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:14:29,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:14:29,473 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:14:29,473 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:14:29,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:14:29,474 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:14:29,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:14:29,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:14:29,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:14:29,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:14:29,475 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:14:29,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:14:29,475 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:14:29,475 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:14:29,476 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:14:29,476 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:14:29,476 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:14:29,476 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:14:29,476 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:14:29,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:14:29,476 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:14:29,476 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 12:14:29,476 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 12:14:29,476 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:14:29,476 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:14:29,477 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:14:29,477 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:14:29,477 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:14:29,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:14:29,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:14:29,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:14:29,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:14:29,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:14:29,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:14:29,478 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 12:14:29,478 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 12:14:29,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:14:29,478 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:14:29,478 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:14:29,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:14:29,478 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 -> e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 [2025-02-06 12:14:29,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:14:29,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:14:29,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:14:29,719 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:14:29,720 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:14:29,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2025-02-06 12:14:30,893 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b31df55a/4cb30224162641f68e608f4dfae67879/FLAG24aa4a232 [2025-02-06 12:14:31,191 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:14:31,192 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2025-02-06 12:14:31,204 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b31df55a/4cb30224162641f68e608f4dfae67879/FLAG24aa4a232 [2025-02-06 12:14:31,213 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b31df55a/4cb30224162641f68e608f4dfae67879 [2025-02-06 12:14:31,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:14:31,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:14:31,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:14:31,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:14:31,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:14:31,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:31,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@90d622d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31, skipping insertion in model container [2025-02-06 12:14:31,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:31,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:14:31,588 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,622 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,624 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,628 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,637 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,671 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,671 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,676 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,676 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,678 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,679 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,680 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,680 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,683 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,684 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,686 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,686 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,687 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,687 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,690 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:14:31,711 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 12:14:31,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:14:31,763 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,781 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,782 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,787 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,790 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,814 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,816 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,817 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,820 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,822 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,823 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,823 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,823 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,828 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,829 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,830 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,835 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,835 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,836 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,837 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:14:31,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:14:31,843 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:14:31,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:14:31,957 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:14:31,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31 WrapperNode [2025-02-06 12:14:31,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:14:31,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:14:31,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:14:31,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:14:31,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:31,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:32,032 INFO L138 Inliner]: procedures = 286, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1191 [2025-02-06 12:14:32,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:14:32,033 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:14:32,033 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:14:32,033 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:14:32,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:32,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:32,044 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:32,121 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 270, 34]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 57, 4]. [2025-02-06 12:14:32,121 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:32,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:32,171 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:32,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:32,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:32,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:32,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:14:32,193 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:14:32,193 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:14:32,193 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:14:32,194 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (1/1) ... [2025-02-06 12:14:32,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:14:32,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:32,218 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) [2025-02-06 12:14:32,223 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 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-06 12:14:32,258 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-02-06 12:14:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-02-06 12:14:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-02-06 12:14:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-02-06 12:14:32,259 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-02-06 12:14:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 12:14:32,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 12:14:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 12:14:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:14:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-02-06 12:14:32,259 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-02-06 12:14:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 12:14:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 12:14:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 12:14:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 12:14:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-02-06 12:14:32,259 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-02-06 12:14:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:14:32,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:14:32,466 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:14:32,468 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:14:32,536 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-02-06 12:14:35,273 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-02-06 12:14:35,273 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-02-06 12:14:35,273 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L987: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-06 12:14:35,374 INFO L? ?]: Removed 1306 outVars from TransFormulas that were not future-live. [2025-02-06 12:14:35,374 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:14:35,391 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:14:35,392 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:14:35,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:14:35 BoogieIcfgContainer [2025-02-06 12:14:35,392 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:14:35,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:14:35,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:14:35,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:14:35,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:14:31" (1/3) ... [2025-02-06 12:14:35,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27448e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:14:35, skipping insertion in model container [2025-02-06 12:14:35,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:31" (2/3) ... [2025-02-06 12:14:35,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27448e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:14:35, skipping insertion in model container [2025-02-06 12:14:35,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:14:35" (3/3) ... [2025-02-06 12:14:35,398 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test6-2.i [2025-02-06 12:14:35,407 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:14:35,408 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test6-2.i that has 6 procedures, 1298 locations, 1 initial locations, 41 loop locations, and 625 error locations. [2025-02-06 12:14:35,440 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:14:35,451 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;@25da83fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:14:35,451 INFO L334 AbstractCegarLoop]: Starting to check reachability of 625 error locations. [2025-02-06 12:14:35,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 1298 states, 647 states have (on average 2.1823802163833075) internal successors, (1412), 1276 states have internal predecessors, (1412), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 12:14:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-06 12:14:35,466 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:35,466 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-06 12:14:35,466 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr613REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:14:35,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:35,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1453719, now seen corresponding path program 1 times [2025-02-06 12:14:35,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:35,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2083023064] [2025-02-06 12:14:35,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:35,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:35,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:35,493 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) [2025-02-06 12:14:35,495 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 [2025-02-06 12:14:35,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:14:35,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:14:35,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:35,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:35,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:14:35,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:35,703 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 [2025-02-06 12:14:35,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:35,725 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:35,726 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:35,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083023064] [2025-02-06 12:14:35,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083023064] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:35,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:35,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:14:35,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990856988] [2025-02-06 12:14:35,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:35,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:14:35,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:35,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:14:35,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:35,748 INFO L87 Difference]: Start difference. First operand has 1298 states, 647 states have (on average 2.1823802163833075) internal successors, (1412), 1276 states have internal predecessors, (1412), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:14:37,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:37,313 INFO L93 Difference]: Finished difference Result 1562 states and 1655 transitions. [2025-02-06 12:14:37,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:14:37,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-02-06 12:14:37,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:37,325 INFO L225 Difference]: With dead ends: 1562 [2025-02-06 12:14:37,325 INFO L226 Difference]: Without dead ends: 1560 [2025-02-06 12:14:37,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:37,327 INFO L435 NwaCegarLoop]: 925 mSDtfsCounter, 928 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:37,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 1278 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-06 12:14:37,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2025-02-06 12:14:37,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1321. [2025-02-06 12:14:37,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 686 states have (on average 2.053935860058309) internal successors, (1409), 1301 states have internal predecessors, (1409), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 12:14:37,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1443 transitions. [2025-02-06 12:14:37,382 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1443 transitions. Word has length 3 [2025-02-06 12:14:37,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:37,382 INFO L471 AbstractCegarLoop]: Abstraction has 1321 states and 1443 transitions. [2025-02-06 12:14:37,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:14:37,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1443 transitions. [2025-02-06 12:14:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-06 12:14:37,383 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:37,383 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-06 12:14:37,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 12:14:37,583 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 [2025-02-06 12:14:37,587 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr614REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:14:37,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:37,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1453720, now seen corresponding path program 1 times [2025-02-06 12:14:37,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:37,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [798322940] [2025-02-06 12:14:37,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:37,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:37,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:37,591 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) [2025-02-06 12:14:37,592 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 [2025-02-06 12:14:37,703 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:14:37,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:14:37,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:37,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:37,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:14:37,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:37,726 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 [2025-02-06 12:14:37,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:37,738 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:37,738 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:37,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798322940] [2025-02-06 12:14:37,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798322940] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:37,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:37,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:14:37,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014676575] [2025-02-06 12:14:37,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:37,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:14:37,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:37,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:14:37,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:37,741 INFO L87 Difference]: Start difference. First operand 1321 states and 1443 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:14:39,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:39,725 INFO L93 Difference]: Finished difference Result 1933 states and 2105 transitions. [2025-02-06 12:14:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:14:39,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-02-06 12:14:39,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:39,735 INFO L225 Difference]: With dead ends: 1933 [2025-02-06 12:14:39,735 INFO L226 Difference]: Without dead ends: 1933 [2025-02-06 12:14:39,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:39,735 INFO L435 NwaCegarLoop]: 1062 mSDtfsCounter, 645 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:39,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 1788 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-06 12:14:39,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2025-02-06 12:14:39,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1542. [2025-02-06 12:14:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 906 states have (on average 2.033112582781457) internal successors, (1842), 1520 states have internal predecessors, (1842), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-02-06 12:14:39,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1880 transitions. [2025-02-06 12:14:39,772 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1880 transitions. Word has length 3 [2025-02-06 12:14:39,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:39,772 INFO L471 AbstractCegarLoop]: Abstraction has 1542 states and 1880 transitions. [2025-02-06 12:14:39,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:14:39,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1880 transitions. [2025-02-06 12:14:39,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-06 12:14:39,773 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:39,773 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:39,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 12:14:39,977 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 [2025-02-06 12:14:39,978 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr610REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:14:39,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:39,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1257791147, now seen corresponding path program 1 times [2025-02-06 12:14:39,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:39,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961334403] [2025-02-06 12:14:39,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:39,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:39,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:39,983 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) [2025-02-06 12:14:39,984 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 [2025-02-06 12:14:40,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:14:40,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:14:40,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:40,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:40,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 12:14:40,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:40,117 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 [2025-02-06 12:14:40,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:14:40,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-02-06 12:14:40,179 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 12:14:40,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 12:14:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:40,193 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:40,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:40,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961334403] [2025-02-06 12:14:40,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961334403] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:40,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:40,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:14:40,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945705318] [2025-02-06 12:14:40,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:40,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:40,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:40,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:40,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:40,194 INFO L87 Difference]: Start difference. First operand 1542 states and 1880 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:14:43,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:43,574 INFO L93 Difference]: Finished difference Result 2642 states and 3061 transitions. [2025-02-06 12:14:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:14:43,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-02-06 12:14:43,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:43,581 INFO L225 Difference]: With dead ends: 2642 [2025-02-06 12:14:43,582 INFO L226 Difference]: Without dead ends: 2642 [2025-02-06 12:14:43,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:43,582 INFO L435 NwaCegarLoop]: 720 mSDtfsCounter, 1143 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 2201 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:43,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 1856 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2201 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2025-02-06 12:14:43,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2025-02-06 12:14:43,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 1694. [2025-02-06 12:14:43,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 1058 states have (on average 2.015122873345936) internal successors, (2132), 1672 states have internal predecessors, (2132), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-02-06 12:14:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2170 transitions. [2025-02-06 12:14:43,624 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2170 transitions. Word has length 9 [2025-02-06 12:14:43,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:43,624 INFO L471 AbstractCegarLoop]: Abstraction has 1694 states and 2170 transitions. [2025-02-06 12:14:43,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-02-06 12:14:43,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2170 transitions. [2025-02-06 12:14:43,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-06 12:14:43,625 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:43,625 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:43,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 12:14:43,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:43,826 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr607REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:14:43,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:43,828 INFO L85 PathProgramCache]: Analyzing trace with hash 336821242, now seen corresponding path program 1 times [2025-02-06 12:14:43,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:43,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1891928355] [2025-02-06 12:14:43,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:43,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:43,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:43,832 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) [2025-02-06 12:14:43,833 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 [2025-02-06 12:14:43,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 12:14:43,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 12:14:43,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:43,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:43,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:14:43,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:43,966 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 [2025-02-06 12:14:43,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:43,989 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:43,989 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:43,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891928355] [2025-02-06 12:14:43,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891928355] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:43,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:43,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:14:43,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299026719] [2025-02-06 12:14:43,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:43,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:43,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:43,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:43,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:43,991 INFO L87 Difference]: Start difference. First operand 1694 states and 2170 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-02-06 12:14:46,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:46,063 INFO L93 Difference]: Finished difference Result 2256 states and 2960 transitions. [2025-02-06 12:14:46,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:14:46,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-02-06 12:14:46,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:46,075 INFO L225 Difference]: With dead ends: 2256 [2025-02-06 12:14:46,075 INFO L226 Difference]: Without dead ends: 2256 [2025-02-06 12:14:46,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:46,076 INFO L435 NwaCegarLoop]: 1249 mSDtfsCounter, 937 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 2573 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:46,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 2573 Invalid, 1734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-06 12:14:46,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2025-02-06 12:14:46,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 1649. [2025-02-06 12:14:46,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1058 states have (on average 1.9593572778827977) internal successors, (2073), 1627 states have internal predecessors, (2073), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-02-06 12:14:46,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2111 transitions. [2025-02-06 12:14:46,109 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2111 transitions. Word has length 10 [2025-02-06 12:14:46,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:46,109 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 2111 transitions. [2025-02-06 12:14:46,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-02-06 12:14:46,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2111 transitions. [2025-02-06 12:14:46,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-06 12:14:46,109 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:46,109 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:46,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 12:14:46,310 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 [2025-02-06 12:14:46,310 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr608REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:14:46,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:46,311 INFO L85 PathProgramCache]: Analyzing trace with hash 336821243, now seen corresponding path program 1 times [2025-02-06 12:14:46,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:46,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [947728490] [2025-02-06 12:14:46,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:46,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:46,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:46,314 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) [2025-02-06 12:14:46,315 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 [2025-02-06 12:14:46,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 12:14:46,487 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 12:14:46,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:46,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:46,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 12:14:46,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:46,504 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 [2025-02-06 12:14:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:46,550 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:46,550 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:46,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947728490] [2025-02-06 12:14:46,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947728490] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:46,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:46,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:14:46,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407511613] [2025-02-06 12:14:46,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:46,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:46,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:46,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:46,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:46,552 INFO L87 Difference]: Start difference. First operand 1649 states and 2111 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-02-06 12:14:49,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:49,045 INFO L93 Difference]: Finished difference Result 2321 states and 2983 transitions. [2025-02-06 12:14:49,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:14:49,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-02-06 12:14:49,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:49,050 INFO L225 Difference]: With dead ends: 2321 [2025-02-06 12:14:49,050 INFO L226 Difference]: Without dead ends: 2321 [2025-02-06 12:14:49,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:49,052 INFO L435 NwaCegarLoop]: 1425 mSDtfsCounter, 716 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:49,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 2930 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1673 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-06 12:14:49,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2321 states. [2025-02-06 12:14:49,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2321 to 1641. [2025-02-06 12:14:49,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1641 states, 1060 states have (on average 1.9349056603773584) internal successors, (2051), 1619 states have internal predecessors, (2051), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-02-06 12:14:49,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2089 transitions. [2025-02-06 12:14:49,080 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2089 transitions. Word has length 10 [2025-02-06 12:14:49,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:49,081 INFO L471 AbstractCegarLoop]: Abstraction has 1641 states and 2089 transitions. [2025-02-06 12:14:49,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-02-06 12:14:49,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2089 transitions. [2025-02-06 12:14:49,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 12:14:49,081 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:49,081 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:49,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 12:14:49,282 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 [2025-02-06 12:14:49,282 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:14:49,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:49,282 INFO L85 PathProgramCache]: Analyzing trace with hash 610178742, now seen corresponding path program 1 times [2025-02-06 12:14:49,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:49,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578459283] [2025-02-06 12:14:49,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:49,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:49,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:49,291 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) [2025-02-06 12:14:49,299 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 [2025-02-06 12:14:49,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:14:49,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:14:49,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:49,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:49,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 12:14:49,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:49,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:49,493 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:49,493 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:49,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578459283] [2025-02-06 12:14:49,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578459283] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:49,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:49,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:14:49,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96900796] [2025-02-06 12:14:49,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:49,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:49,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:49,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:49,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:49,494 INFO L87 Difference]: Start difference. First operand 1641 states and 2089 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:14:50,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:50,081 INFO L93 Difference]: Finished difference Result 2271 states and 2864 transitions. [2025-02-06 12:14:50,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:14:50,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-02-06 12:14:50,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:50,086 INFO L225 Difference]: With dead ends: 2271 [2025-02-06 12:14:50,087 INFO L226 Difference]: Without dead ends: 2271 [2025-02-06 12:14:50,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:50,087 INFO L435 NwaCegarLoop]: 1466 mSDtfsCounter, 643 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 3990 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:50,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 3990 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 12:14:50,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2025-02-06 12:14:50,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 1905. [2025-02-06 12:14:50,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1321 states have (on average 1.9447388342165026) internal successors, (2569), 1880 states have internal predecessors, (2569), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 12:14:50,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2613 transitions. [2025-02-06 12:14:50,110 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2613 transitions. Word has length 15 [2025-02-06 12:14:50,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:50,110 INFO L471 AbstractCegarLoop]: Abstraction has 1905 states and 2613 transitions. [2025-02-06 12:14:50,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:14:50,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2613 transitions. [2025-02-06 12:14:50,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 12:14:50,111 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:50,111 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:50,117 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 [2025-02-06 12:14:50,314 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 [2025-02-06 12:14:50,314 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr291REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:14:50,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:50,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1020353923, now seen corresponding path program 1 times [2025-02-06 12:14:50,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:50,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1514007196] [2025-02-06 12:14:50,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:50,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:50,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:50,317 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) [2025-02-06 12:14:50,318 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 [2025-02-06 12:14:50,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:14:50,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:14:50,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:50,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:50,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:14:50,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:50,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:50,475 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:50,475 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:50,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514007196] [2025-02-06 12:14:50,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514007196] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:50,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:50,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:14:50,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394736905] [2025-02-06 12:14:50,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:50,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:50,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:50,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:50,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:50,476 INFO L87 Difference]: Start difference. First operand 1905 states and 2613 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2025-02-06 12:14:52,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:52,067 INFO L93 Difference]: Finished difference Result 2133 states and 2752 transitions. [2025-02-06 12:14:52,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:14:52,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-02-06 12:14:52,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:52,076 INFO L225 Difference]: With dead ends: 2133 [2025-02-06 12:14:52,076 INFO L226 Difference]: Without dead ends: 2133 [2025-02-06 12:14:52,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:52,078 INFO L435 NwaCegarLoop]: 947 mSDtfsCounter, 943 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:52,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 1981 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-06 12:14:52,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2133 states. [2025-02-06 12:14:52,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2133 to 1882. [2025-02-06 12:14:52,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1882 states, 1321 states have (on average 1.8750946252838758) internal successors, (2477), 1857 states have internal predecessors, (2477), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 12:14:52,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2521 transitions. [2025-02-06 12:14:52,138 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2521 transitions. Word has length 15 [2025-02-06 12:14:52,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:52,138 INFO L471 AbstractCegarLoop]: Abstraction has 1882 states and 2521 transitions. [2025-02-06 12:14:52,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2025-02-06 12:14:52,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2521 transitions. [2025-02-06 12:14:52,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 12:14:52,139 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:52,139 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:52,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 12:14:52,339 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 [2025-02-06 12:14:52,340 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr292REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:14:52,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:52,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1020353924, now seen corresponding path program 1 times [2025-02-06 12:14:52,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:52,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1297287693] [2025-02-06 12:14:52,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:52,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:52,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:52,345 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:14:52,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 12:14:52,456 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:14:52,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:14:52,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:52,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:52,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 12:14:52,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:52,494 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 [2025-02-06 12:14:52,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:52,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:52,627 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:52,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297287693] [2025-02-06 12:14:52,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297287693] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:52,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:52,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:14:52,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101730119] [2025-02-06 12:14:52,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:52,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:52,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:52,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:52,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:52,628 INFO L87 Difference]: Start difference. First operand 1882 states and 2521 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2025-02-06 12:14:55,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:55,082 INFO L93 Difference]: Finished difference Result 2214 states and 2682 transitions. [2025-02-06 12:14:55,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:14:55,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-02-06 12:14:55,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:55,088 INFO L225 Difference]: With dead ends: 2214 [2025-02-06 12:14:55,088 INFO L226 Difference]: Without dead ends: 2214 [2025-02-06 12:14:55,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:55,089 INFO L435 NwaCegarLoop]: 1014 mSDtfsCounter, 621 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:55,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 2322 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-06 12:14:55,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2025-02-06 12:14:55,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1831. [2025-02-06 12:14:55,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1831 states, 1270 states have (on average 1.874015748031496) internal successors, (2380), 1806 states have internal predecessors, (2380), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 12:14:55,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1831 states to 1831 states and 2424 transitions. [2025-02-06 12:14:55,153 INFO L78 Accepts]: Start accepts. Automaton has 1831 states and 2424 transitions. Word has length 15 [2025-02-06 12:14:55,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:55,153 INFO L471 AbstractCegarLoop]: Abstraction has 1831 states and 2424 transitions. [2025-02-06 12:14:55,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2025-02-06 12:14:55,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1831 states and 2424 transitions. [2025-02-06 12:14:55,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-06 12:14:55,154 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:55,154 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:55,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 12:14:55,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:55,358 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr268REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:14:55,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:55,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1566156583, now seen corresponding path program 1 times [2025-02-06 12:14:55,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:55,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1265548449] [2025-02-06 12:14:55,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:55,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:55,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:55,368 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:14:55,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 12:14:55,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 12:14:55,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 12:14:55,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:55,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:55,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:14:55,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:55,507 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:55,507 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:55,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265548449] [2025-02-06 12:14:55,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265548449] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:55,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:55,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:14:55,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944265936] [2025-02-06 12:14:55,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:55,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:55,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:55,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:55,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:55,508 INFO L87 Difference]: Start difference. First operand 1831 states and 2424 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2025-02-06 12:14:55,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:55,562 INFO L93 Difference]: Finished difference Result 1759 states and 2301 transitions. [2025-02-06 12:14:55,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:14:55,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2025-02-06 12:14:55,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:55,566 INFO L225 Difference]: With dead ends: 1759 [2025-02-06 12:14:55,566 INFO L226 Difference]: Without dead ends: 1759 [2025-02-06 12:14:55,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:55,567 INFO L435 NwaCegarLoop]: 1195 mSDtfsCounter, 45 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:55,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3562 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 12:14:55,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2025-02-06 12:14:55,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1759. [2025-02-06 12:14:55,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1759 states, 1217 states have (on average 1.8545603944124898) internal successors, (2257), 1734 states have internal predecessors, (2257), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 12:14:55,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1759 states to 1759 states and 2301 transitions. [2025-02-06 12:14:55,585 INFO L78 Accepts]: Start accepts. Automaton has 1759 states and 2301 transitions. Word has length 16 [2025-02-06 12:14:55,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:55,585 INFO L471 AbstractCegarLoop]: Abstraction has 1759 states and 2301 transitions. [2025-02-06 12:14:55,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2025-02-06 12:14:55,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1759 states and 2301 transitions. [2025-02-06 12:14:55,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-06 12:14:55,587 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:55,587 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:55,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 12:14:55,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:55,788 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:14:55,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:55,788 INFO L85 PathProgramCache]: Analyzing trace with hash -561038222, now seen corresponding path program 1 times [2025-02-06 12:14:55,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:55,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [812654454] [2025-02-06 12:14:55,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:55,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:55,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:55,791 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:14:55,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 12:14:55,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 12:14:55,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 12:14:55,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:55,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:55,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:14:55,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:55,928 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:14:55,929 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:14:55,929 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:14:55,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 12:14:55,973 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 12:14:55,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 12:14:55,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:55,982 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:55,982 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:55,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812654454] [2025-02-06 12:14:55,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812654454] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:55,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:55,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:14:55,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445174115] [2025-02-06 12:14:55,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:55,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:55,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:55,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:55,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:55,984 INFO L87 Difference]: Start difference. First operand 1759 states and 2301 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:14:56,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:56,193 INFO L93 Difference]: Finished difference Result 2478 states and 2873 transitions. [2025-02-06 12:14:56,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:14:56,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2025-02-06 12:14:56,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:56,199 INFO L225 Difference]: With dead ends: 2478 [2025-02-06 12:14:56,199 INFO L226 Difference]: Without dead ends: 2478 [2025-02-06 12:14:56,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:56,200 INFO L435 NwaCegarLoop]: 1428 mSDtfsCounter, 1080 mSDsluCounter, 2599 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 4027 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:56,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 4027 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 12:14:56,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2025-02-06 12:14:56,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 1431. [2025-02-06 12:14:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 891 states have (on average 1.8731762065095399) internal successors, (1669), 1408 states have internal predecessors, (1669), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 12:14:56,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1709 transitions. [2025-02-06 12:14:56,214 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1709 transitions. Word has length 18 [2025-02-06 12:14:56,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:56,214 INFO L471 AbstractCegarLoop]: Abstraction has 1431 states and 1709 transitions. [2025-02-06 12:14:56,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:14:56,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1709 transitions. [2025-02-06 12:14:56,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-06 12:14:56,215 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:56,215 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:56,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-06 12:14:56,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:56,419 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr599REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:14:56,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:56,420 INFO L85 PathProgramCache]: Analyzing trace with hash 564076077, now seen corresponding path program 1 times [2025-02-06 12:14:56,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:56,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1847480842] [2025-02-06 12:14:56,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:56,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:56,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:56,422 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:14:56,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 12:14:56,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:14:56,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:14:56,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:56,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:56,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:14:56,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:56,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:56,614 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:56,614 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:56,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847480842] [2025-02-06 12:14:56,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847480842] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:56,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:56,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:14:56,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228147052] [2025-02-06 12:14:56,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:56,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:56,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:56,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:56,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:56,615 INFO L87 Difference]: Start difference. First operand 1431 states and 1709 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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) [2025-02-06 12:14:58,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:58,175 INFO L93 Difference]: Finished difference Result 1821 states and 2194 transitions. [2025-02-06 12:14:58,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:14:58,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2025-02-06 12:14:58,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:58,179 INFO L225 Difference]: With dead ends: 1821 [2025-02-06 12:14:58,179 INFO L226 Difference]: Without dead ends: 1821 [2025-02-06 12:14:58,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:58,180 INFO L435 NwaCegarLoop]: 766 mSDtfsCounter, 900 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:58,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 1694 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-06 12:14:58,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2025-02-06 12:14:58,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1408. [2025-02-06 12:14:58,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 891 states have (on average 1.8215488215488216) internal successors, (1623), 1385 states have internal predecessors, (1623), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 12:14:58,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1663 transitions. [2025-02-06 12:14:58,195 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1663 transitions. Word has length 20 [2025-02-06 12:14:58,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:58,195 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1663 transitions. [2025-02-06 12:14:58,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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) [2025-02-06 12:14:58,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1663 transitions. [2025-02-06 12:14:58,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-06 12:14:58,197 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:58,197 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:58,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-06 12:14:58,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:58,397 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr600REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:14:58,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:58,397 INFO L85 PathProgramCache]: Analyzing trace with hash 564076078, now seen corresponding path program 1 times [2025-02-06 12:14:58,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:58,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [467076786] [2025-02-06 12:14:58,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:58,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:58,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:58,400 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:14:58,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 12:14:58,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:14:58,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:14:58,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:58,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:58,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 12:14:58,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:58,627 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 [2025-02-06 12:14:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:58,764 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:58,764 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:58,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467076786] [2025-02-06 12:14:58,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467076786] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:58,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:58,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:14:58,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156829116] [2025-02-06 12:14:58,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:58,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:14:58,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:58,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:14:58,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:58,765 INFO L87 Difference]: Start difference. First operand 1408 states and 1663 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2025-02-06 12:15:02,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:02,061 INFO L93 Difference]: Finished difference Result 2063 states and 2441 transitions. [2025-02-06 12:15:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:15:02,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2025-02-06 12:15:02,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:02,067 INFO L225 Difference]: With dead ends: 2063 [2025-02-06 12:15:02,067 INFO L226 Difference]: Without dead ends: 2063 [2025-02-06 12:15:02,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:15:02,067 INFO L435 NwaCegarLoop]: 1367 mSDtfsCounter, 753 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 3644 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:02,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 3644 Invalid, 2362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-02-06 12:15:02,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2025-02-06 12:15:02,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 1522. [2025-02-06 12:15:02,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1005 states have (on average 1.7522388059701492) internal successors, (1761), 1499 states have internal predecessors, (1761), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 12:15:02,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 1801 transitions. [2025-02-06 12:15:02,081 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 1801 transitions. Word has length 20 [2025-02-06 12:15:02,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:02,081 INFO L471 AbstractCegarLoop]: Abstraction has 1522 states and 1801 transitions. [2025-02-06 12:15:02,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2025-02-06 12:15:02,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 1801 transitions. [2025-02-06 12:15:02,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-02-06 12:15:02,082 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:02,082 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:02,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-06 12:15:02,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:02,283 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr600REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:02,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:02,283 INFO L85 PathProgramCache]: Analyzing trace with hash -411819895, now seen corresponding path program 1 times [2025-02-06 12:15:02,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:02,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143356698] [2025-02-06 12:15:02,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:02,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:02,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:02,286 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:02,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 12:15:02,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-06 12:15:02,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-06 12:15:02,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:02,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:02,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 12:15:02,480 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:02,493 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 [2025-02-06 12:15:02,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:02,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:15:03,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:03,010 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:03,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143356698] [2025-02-06 12:15:03,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143356698] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:15:03,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 12:15:03,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-02-06 12:15:03,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284203262] [2025-02-06 12:15:03,010 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 12:15:03,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 12:15:03,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:03,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 12:15:03,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-02-06 12:15:03,011 INFO L87 Difference]: Start difference. First operand 1522 states and 1801 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 10 states have internal predecessors, (73), 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) [2025-02-06 12:15:10,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:10,708 INFO L93 Difference]: Finished difference Result 2419 states and 2931 transitions. [2025-02-06 12:15:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:15:10,710 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 10 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2025-02-06 12:15:10,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:10,723 INFO L225 Difference]: With dead ends: 2419 [2025-02-06 12:15:10,723 INFO L226 Difference]: Without dead ends: 2419 [2025-02-06 12:15:10,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2025-02-06 12:15:10,724 INFO L435 NwaCegarLoop]: 1419 mSDtfsCounter, 1429 mSDsluCounter, 3827 mSDsCounter, 0 mSdLazyCounter, 3710 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 5246 SdHoareTripleChecker+Invalid, 3737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:10,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1431 Valid, 5246 Invalid, 3737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3710 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2025-02-06 12:15:10,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2025-02-06 12:15:10,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 1686. [2025-02-06 12:15:10,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1169 states have (on average 1.7048759623609924) internal successors, (1993), 1663 states have internal predecessors, (1993), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 12:15:10,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2033 transitions. [2025-02-06 12:15:10,766 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2033 transitions. Word has length 39 [2025-02-06 12:15:10,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:10,767 INFO L471 AbstractCegarLoop]: Abstraction has 1686 states and 2033 transitions. [2025-02-06 12:15:10,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 10 states have internal predecessors, (73), 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) [2025-02-06 12:15:10,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2033 transitions. [2025-02-06 12:15:10,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-02-06 12:15:10,767 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:10,772 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:10,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-06 12:15:10,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:10,973 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:10,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:10,974 INFO L85 PathProgramCache]: Analyzing trace with hash -335836065, now seen corresponding path program 1 times [2025-02-06 12:15:10,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:10,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1519795921] [2025-02-06 12:15:10,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:10,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:10,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:10,977 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:10,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-06 12:15:11,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-06 12:15:11,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-06 12:15:11,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:11,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:11,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:15:11,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:11,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:11,300 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:15:11,300 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:11,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519795921] [2025-02-06 12:15:11,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519795921] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:15:11,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:15:11,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:15:11,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131118925] [2025-02-06 12:15:11,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:15:11,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:15:11,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:11,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:15:11,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:15:11,301 INFO L87 Difference]: Start difference. First operand 1686 states and 2033 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:15:11,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:11,359 INFO L93 Difference]: Finished difference Result 1375 states and 1597 transitions. [2025-02-06 12:15:11,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:15:11,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2025-02-06 12:15:11,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:11,362 INFO L225 Difference]: With dead ends: 1375 [2025-02-06 12:15:11,362 INFO L226 Difference]: Without dead ends: 1375 [2025-02-06 12:15:11,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:15:11,363 INFO L435 NwaCegarLoop]: 1132 mSDtfsCounter, 56 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:11,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3323 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 12:15:11,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2025-02-06 12:15:11,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1373. [2025-02-06 12:15:11,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 879 states have (on average 1.7690557451649602) internal successors, (1555), 1350 states have internal predecessors, (1555), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 12:15:11,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1595 transitions. [2025-02-06 12:15:11,387 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1595 transitions. Word has length 57 [2025-02-06 12:15:11,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:11,387 INFO L471 AbstractCegarLoop]: Abstraction has 1373 states and 1595 transitions. [2025-02-06 12:15:11,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:15:11,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1595 transitions. [2025-02-06 12:15:11,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-06 12:15:11,388 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:11,389 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:11,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-06 12:15:11,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:11,593 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:11,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:11,594 INFO L85 PathProgramCache]: Analyzing trace with hash 959314087, now seen corresponding path program 1 times [2025-02-06 12:15:11,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:11,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849912077] [2025-02-06 12:15:11,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:11,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:11,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:11,596 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:11,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-06 12:15:11,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 12:15:11,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 12:15:11,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:11,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:11,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 12:15:11,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:11,847 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-02-06 12:15:11,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-02-06 12:15:11,871 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2025-02-06 12:15:11,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2025-02-06 12:15:12,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:12,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:15:12,086 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:12,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849912077] [2025-02-06 12:15:12,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849912077] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:15:12,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:15:12,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:15:12,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022160239] [2025-02-06 12:15:12,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:15:12,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:15:12,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:12,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:15:12,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:15:12,087 INFO L87 Difference]: Start difference. First operand 1373 states and 1595 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:15:14,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:14,294 INFO L93 Difference]: Finished difference Result 2501 states and 2919 transitions. [2025-02-06 12:15:14,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:15:14,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2025-02-06 12:15:14,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:14,310 INFO L225 Difference]: With dead ends: 2501 [2025-02-06 12:15:14,310 INFO L226 Difference]: Without dead ends: 2501 [2025-02-06 12:15:14,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:15:14,311 INFO L435 NwaCegarLoop]: 903 mSDtfsCounter, 1929 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:14,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 2153 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-06 12:15:14,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2025-02-06 12:15:14,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 1852. [2025-02-06 12:15:14,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1852 states, 1342 states have (on average 1.7533532041728763) internal successors, (2353), 1816 states have internal predecessors, (2353), 35 states have call successors, (35), 9 states have call predecessors, (35), 7 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2025-02-06 12:15:14,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1852 states to 1852 states and 2419 transitions. [2025-02-06 12:15:14,327 INFO L78 Accepts]: Start accepts. Automaton has 1852 states and 2419 transitions. Word has length 65 [2025-02-06 12:15:14,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:14,327 INFO L471 AbstractCegarLoop]: Abstraction has 1852 states and 2419 transitions. [2025-02-06 12:15:14,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:15:14,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1852 states and 2419 transitions. [2025-02-06 12:15:14,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-06 12:15:14,328 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:14,328 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:14,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-02-06 12:15:14,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:14,529 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:14,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:14,529 INFO L85 PathProgramCache]: Analyzing trace with hash 959314088, now seen corresponding path program 1 times [2025-02-06 12:15:14,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:14,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [322406126] [2025-02-06 12:15:14,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:14,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:14,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:14,532 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:14,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-06 12:15:14,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 12:15:14,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 12:15:14,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:14,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:14,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 12:15:14,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:14,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:15:14,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-02-06 12:15:14,881 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2025-02-06 12:15:14,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2025-02-06 12:15:15,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:15,497 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:15:15,497 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:15,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322406126] [2025-02-06 12:15:15,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322406126] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:15:15,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:15:15,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:15:15,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012000720] [2025-02-06 12:15:15,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:15:15,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:15:15,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:15,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:15:15,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:15:15,498 INFO L87 Difference]: Start difference. First operand 1852 states and 2419 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:15:17,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:17,044 INFO L93 Difference]: Finished difference Result 1858 states and 2426 transitions. [2025-02-06 12:15:17,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:15:17,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2025-02-06 12:15:17,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:17,052 INFO L225 Difference]: With dead ends: 1858 [2025-02-06 12:15:17,052 INFO L226 Difference]: Without dead ends: 1858 [2025-02-06 12:15:17,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:15:17,053 INFO L435 NwaCegarLoop]: 1119 mSDtfsCounter, 102 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:17,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 2394 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-06 12:15:17,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2025-02-06 12:15:17,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1858. [2025-02-06 12:15:17,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1347 states have (on average 1.7505567928730512) internal successors, (2358), 1821 states have internal predecessors, (2358), 36 states have call successors, (36), 10 states have call predecessors, (36), 7 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2025-02-06 12:15:17,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2426 transitions. [2025-02-06 12:15:17,096 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2426 transitions. Word has length 65 [2025-02-06 12:15:17,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:17,096 INFO L471 AbstractCegarLoop]: Abstraction has 1858 states and 2426 transitions. [2025-02-06 12:15:17,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:15:17,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2426 transitions. [2025-02-06 12:15:17,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-02-06 12:15:17,097 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:17,097 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:17,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-02-06 12:15:17,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:17,298 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:17,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:17,299 INFO L85 PathProgramCache]: Analyzing trace with hash -823923670, now seen corresponding path program 1 times [2025-02-06 12:15:17,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:17,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021435951] [2025-02-06 12:15:17,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:17,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:17,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:17,302 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:17,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-06 12:15:17,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-02-06 12:15:17,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-02-06 12:15:17,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:17,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:17,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 12:15:17,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:17,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:15:17,635 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:17,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021435951] [2025-02-06 12:15:17,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021435951] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:15:17,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:15:17,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 12:15:17,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973279081] [2025-02-06 12:15:17,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:15:17,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:15:17,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:17,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:15:17,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:15:17,636 INFO L87 Difference]: Start difference. First operand 1858 states and 2426 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:15:17,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:17,708 INFO L93 Difference]: Finished difference Result 1866 states and 2434 transitions. [2025-02-06 12:15:17,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:15:17,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2025-02-06 12:15:17,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:17,711 INFO L225 Difference]: With dead ends: 1866 [2025-02-06 12:15:17,711 INFO L226 Difference]: Without dead ends: 1866 [2025-02-06 12:15:17,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-06 12:15:17,711 INFO L435 NwaCegarLoop]: 1140 mSDtfsCounter, 25 mSDsluCounter, 5768 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6908 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:17,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6908 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 12:15:17,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2025-02-06 12:15:17,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1865. [2025-02-06 12:15:17,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1865 states, 1352 states have (on average 1.7477810650887573) internal successors, (2363), 1827 states have internal predecessors, (2363), 37 states have call successors, (37), 11 states have call predecessors, (37), 8 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2025-02-06 12:15:17,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1865 states to 1865 states and 2433 transitions. [2025-02-06 12:15:17,726 INFO L78 Accepts]: Start accepts. Automaton has 1865 states and 2433 transitions. Word has length 73 [2025-02-06 12:15:17,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:17,726 INFO L471 AbstractCegarLoop]: Abstraction has 1865 states and 2433 transitions. [2025-02-06 12:15:17,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:15:17,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1865 states and 2433 transitions. [2025-02-06 12:15:17,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-06 12:15:17,726 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:17,727 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:17,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-06 12:15:17,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:17,927 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr517REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:17,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:17,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1328167559, now seen corresponding path program 1 times [2025-02-06 12:15:17,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:17,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161768563] [2025-02-06 12:15:17,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:17,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:17,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:17,932 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:17,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-06 12:15:18,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-06 12:15:18,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-06 12:15:18,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:18,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:18,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 12:15:18,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:18,263 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-02-06 12:15:18,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-02-06 12:15:18,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:18,265 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:15:18,265 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:18,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161768563] [2025-02-06 12:15:18,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161768563] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:15:18,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:15:18,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:15:18,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026947426] [2025-02-06 12:15:18,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:15:18,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:15:18,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:18,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:15:18,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:15:18,267 INFO L87 Difference]: Start difference. First operand 1865 states and 2433 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 12:15:22,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 12:15:25,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:25,567 INFO L93 Difference]: Finished difference Result 2267 states and 2950 transitions. [2025-02-06 12:15:25,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:15:25,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 76 [2025-02-06 12:15:25,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:25,571 INFO L225 Difference]: With dead ends: 2267 [2025-02-06 12:15:25,571 INFO L226 Difference]: Without dead ends: 2267 [2025-02-06 12:15:25,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:15:25,571 INFO L435 NwaCegarLoop]: 715 mSDtfsCounter, 772 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 29 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:25,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 2189 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1871 Invalid, 6 Unknown, 0 Unchecked, 7.2s Time] [2025-02-06 12:15:25,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2267 states. [2025-02-06 12:15:25,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2267 to 1862. [2025-02-06 12:15:25,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1352 states have (on average 1.7433431952662721) internal successors, (2357), 1824 states have internal predecessors, (2357), 37 states have call successors, (37), 11 states have call predecessors, (37), 8 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2025-02-06 12:15:25,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2427 transitions. [2025-02-06 12:15:25,591 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2427 transitions. Word has length 76 [2025-02-06 12:15:25,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:25,591 INFO L471 AbstractCegarLoop]: Abstraction has 1862 states and 2427 transitions. [2025-02-06 12:15:25,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 12:15:25,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2427 transitions. [2025-02-06 12:15:25,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-06 12:15:25,592 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:25,592 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:25,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-02-06 12:15:25,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:25,792 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr518REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:25,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:25,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1328167560, now seen corresponding path program 1 times [2025-02-06 12:15:25,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:25,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923097581] [2025-02-06 12:15:25,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:25,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:25,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:25,796 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:25,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-06 12:15:25,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-06 12:15:26,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-06 12:15:26,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:26,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:26,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-06 12:15:26,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:26,057 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 [2025-02-06 12:15:26,417 WARN L873 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |alt_malloc_#res.base| (select |c_#length| |alt_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |alt_malloc_#res.base|)))) is different from true [2025-02-06 12:15:26,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:15:26,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-02-06 12:15:26,437 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 12:15:26,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 12:15:26,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:26,440 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:15:26,440 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:26,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923097581] [2025-02-06 12:15:26,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923097581] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:15:26,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:15:26,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:15:26,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074169834] [2025-02-06 12:15:26,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:15:26,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:15:26,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:26,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:15:26,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2025-02-06 12:15:26,441 INFO L87 Difference]: Start difference. First operand 1862 states and 2427 transitions. Second operand has 7 states, 6 states have (on average 12.0) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 12:15:30,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:30,063 INFO L93 Difference]: Finished difference Result 2916 states and 3775 transitions. [2025-02-06 12:15:30,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:15:30,064 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 76 [2025-02-06 12:15:30,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:30,071 INFO L225 Difference]: With dead ends: 2916 [2025-02-06 12:15:30,074 INFO L226 Difference]: Without dead ends: 2916 [2025-02-06 12:15:30,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=28, Unknown=1, NotChecked=10, Total=56 [2025-02-06 12:15:30,075 INFO L435 NwaCegarLoop]: 1189 mSDtfsCounter, 1430 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 3036 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 5020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1955 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:30,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 3019 Invalid, 5020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3036 Invalid, 0 Unknown, 1955 Unchecked, 3.6s Time] [2025-02-06 12:15:30,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2025-02-06 12:15:30,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1854. [2025-02-06 12:15:30,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1854 states, 1352 states have (on average 1.731508875739645) internal successors, (2341), 1816 states have internal predecessors, (2341), 37 states have call successors, (37), 11 states have call predecessors, (37), 8 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2025-02-06 12:15:30,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2411 transitions. [2025-02-06 12:15:30,100 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2411 transitions. Word has length 76 [2025-02-06 12:15:30,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:30,100 INFO L471 AbstractCegarLoop]: Abstraction has 1854 states and 2411 transitions. [2025-02-06 12:15:30,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 7 states have internal predecessors, (72), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 12:15:30,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2411 transitions. [2025-02-06 12:15:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-06 12:15:30,101 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:30,101 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:30,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-06 12:15:30,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:30,302 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:30,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:30,303 INFO L85 PathProgramCache]: Analyzing trace with hash 931326210, now seen corresponding path program 1 times [2025-02-06 12:15:30,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:30,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [344645935] [2025-02-06 12:15:30,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:30,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:30,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:30,307 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:30,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-06 12:15:30,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-06 12:15:30,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-06 12:15:30,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:30,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:30,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 12:15:30,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:30,564 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 [2025-02-06 12:15:30,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-06 12:15:30,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-06 12:15:30,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:30,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:15:30,627 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:30,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344645935] [2025-02-06 12:15:30,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344645935] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:15:30,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:15:30,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 12:15:30,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047687429] [2025-02-06 12:15:30,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:15:30,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:15:30,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:30,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:15:30,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:15:30,628 INFO L87 Difference]: Start difference. First operand 1854 states and 2411 transitions. Second operand has 8 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 12:15:33,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:33,276 INFO L93 Difference]: Finished difference Result 1869 states and 2427 transitions. [2025-02-06 12:15:33,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:15:33,278 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2025-02-06 12:15:33,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:33,280 INFO L225 Difference]: With dead ends: 1869 [2025-02-06 12:15:33,281 INFO L226 Difference]: Without dead ends: 1869 [2025-02-06 12:15:33,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-06 12:15:33,282 INFO L435 NwaCegarLoop]: 1126 mSDtfsCounter, 16 mSDsluCounter, 3775 mSDsCounter, 0 mSdLazyCounter, 3036 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4901 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:33,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4901 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3036 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-06 12:15:33,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1869 states. [2025-02-06 12:15:33,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1869 to 1868. [2025-02-06 12:15:33,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1364 states have (on average 1.7280058651026393) internal successors, (2357), 1828 states have internal predecessors, (2357), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2025-02-06 12:15:33,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2427 transitions. [2025-02-06 12:15:33,334 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2427 transitions. Word has length 83 [2025-02-06 12:15:33,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:33,334 INFO L471 AbstractCegarLoop]: Abstraction has 1868 states and 2427 transitions. [2025-02-06 12:15:33,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 12:15:33,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2427 transitions. [2025-02-06 12:15:33,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-06 12:15:33,334 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:33,335 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:33,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-02-06 12:15:33,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:33,535 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:33,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:33,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1193658558, now seen corresponding path program 1 times [2025-02-06 12:15:33,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:33,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [983685274] [2025-02-06 12:15:33,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:33,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:33,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:33,539 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:33,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-02-06 12:15:33,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-06 12:15:33,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-06 12:15:33,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:33,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:33,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-06 12:15:33,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:33,819 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 [2025-02-06 12:15:33,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-06 12:15:33,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-02-06 12:15:33,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2025-02-06 12:15:33,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:33,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:15:33,944 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:33,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983685274] [2025-02-06 12:15:33,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983685274] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:15:33,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:15:33,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 12:15:33,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511967770] [2025-02-06 12:15:33,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:15:33,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 12:15:33,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:33,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 12:15:33,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 12:15:33,945 INFO L87 Difference]: Start difference. First operand 1868 states and 2427 transitions. Second operand has 9 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 12:15:37,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:37,670 INFO L93 Difference]: Finished difference Result 1868 states and 2425 transitions. [2025-02-06 12:15:37,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:15:37,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 84 [2025-02-06 12:15:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:37,673 INFO L225 Difference]: With dead ends: 1868 [2025-02-06 12:15:37,673 INFO L226 Difference]: Without dead ends: 1868 [2025-02-06 12:15:37,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-06 12:15:37,674 INFO L435 NwaCegarLoop]: 1122 mSDtfsCounter, 13 mSDsluCounter, 4713 mSDsCounter, 0 mSdLazyCounter, 3234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5835 SdHoareTripleChecker+Invalid, 3235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:37,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5835 Invalid, 3235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3234 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-02-06 12:15:37,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2025-02-06 12:15:37,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1868. [2025-02-06 12:15:37,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1364 states have (on average 1.7265395894428153) internal successors, (2355), 1828 states have internal predecessors, (2355), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (33), 28 states have call predecessors, (33), 33 states have call successors, (33) [2025-02-06 12:15:37,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2425 transitions. [2025-02-06 12:15:37,686 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2425 transitions. Word has length 84 [2025-02-06 12:15:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:37,686 INFO L471 AbstractCegarLoop]: Abstraction has 1868 states and 2425 transitions. [2025-02-06 12:15:37,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 12:15:37,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2425 transitions. [2025-02-06 12:15:37,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-02-06 12:15:37,686 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:37,686 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:37,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-02-06 12:15:37,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:37,887 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr509REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:37,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:37,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1243648381, now seen corresponding path program 1 times [2025-02-06 12:15:37,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:37,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984423941] [2025-02-06 12:15:37,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:37,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:37,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:37,894 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:37,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-02-06 12:15:38,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-02-06 12:15:38,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-02-06 12:15:38,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:38,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:38,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 12:15:38,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:38,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-06 12:15:38,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-06 12:15:38,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:38,268 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:15:38,268 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:38,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984423941] [2025-02-06 12:15:38,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984423941] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:15:38,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:15:38,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 12:15:38,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501324610] [2025-02-06 12:15:38,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:15:38,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:15:38,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:38,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:15:38,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:15:38,270 INFO L87 Difference]: Start difference. First operand 1868 states and 2425 transitions. Second operand has 8 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 12:15:41,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:41,093 INFO L93 Difference]: Finished difference Result 1899 states and 2465 transitions. [2025-02-06 12:15:41,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:15:41,096 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 91 [2025-02-06 12:15:41,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:41,099 INFO L225 Difference]: With dead ends: 1899 [2025-02-06 12:15:41,099 INFO L226 Difference]: Without dead ends: 1899 [2025-02-06 12:15:41,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2025-02-06 12:15:41,100 INFO L435 NwaCegarLoop]: 1088 mSDtfsCounter, 43 mSDsluCounter, 4329 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 5417 SdHoareTripleChecker+Invalid, 2491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:41,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 5417 Invalid, 2491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-02-06 12:15:41,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2025-02-06 12:15:41,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1882. [2025-02-06 12:15:41,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1882 states, 1376 states have (on average 1.723110465116279) internal successors, (2371), 1840 states have internal predecessors, (2371), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (35), 30 states have call predecessors, (35), 33 states have call successors, (35) [2025-02-06 12:15:41,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2443 transitions. [2025-02-06 12:15:41,115 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2443 transitions. Word has length 91 [2025-02-06 12:15:41,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:41,115 INFO L471 AbstractCegarLoop]: Abstraction has 1882 states and 2443 transitions. [2025-02-06 12:15:41,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 12:15:41,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2443 transitions. [2025-02-06 12:15:41,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-02-06 12:15:41,116 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:41,116 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:41,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2025-02-06 12:15:41,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:41,317 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr510REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:41,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:41,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1243648382, now seen corresponding path program 1 times [2025-02-06 12:15:41,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:41,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1780466722] [2025-02-06 12:15:41,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:41,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:41,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:41,320 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:41,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-02-06 12:15:41,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-02-06 12:15:41,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-02-06 12:15:41,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:41,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:41,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 12:15:41,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:41,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:41,615 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:15:41,615 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:41,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780466722] [2025-02-06 12:15:41,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780466722] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:15:41,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:15:41,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:15:41,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945162508] [2025-02-06 12:15:41,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:15:41,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:15:41,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:41,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:15:41,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:15:41,616 INFO L87 Difference]: Start difference. First operand 1882 states and 2443 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 12:15:41,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:41,657 INFO L93 Difference]: Finished difference Result 1884 states and 2443 transitions. [2025-02-06 12:15:41,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:15:41,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 91 [2025-02-06 12:15:41,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:41,662 INFO L225 Difference]: With dead ends: 1884 [2025-02-06 12:15:41,662 INFO L226 Difference]: Without dead ends: 1878 [2025-02-06 12:15:41,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:15:41,662 INFO L435 NwaCegarLoop]: 1131 mSDtfsCounter, 3 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3384 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:41,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3384 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 12:15:41,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2025-02-06 12:15:41,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1878. [2025-02-06 12:15:41,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1372 states have (on average 1.7237609329446064) internal successors, (2365), 1838 states have internal predecessors, (2365), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (35), 28 states have call predecessors, (35), 33 states have call successors, (35) [2025-02-06 12:15:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2437 transitions. [2025-02-06 12:15:41,678 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2437 transitions. Word has length 91 [2025-02-06 12:15:41,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:41,678 INFO L471 AbstractCegarLoop]: Abstraction has 1878 states and 2437 transitions. [2025-02-06 12:15:41,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 12:15:41,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2437 transitions. [2025-02-06 12:15:41,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-02-06 12:15:41,679 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:41,679 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:41,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-02-06 12:15:41,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:41,880 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr509REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:41,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:41,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1616689665, now seen corresponding path program 1 times [2025-02-06 12:15:41,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:41,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [268014415] [2025-02-06 12:15:41,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:41,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:41,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:41,884 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:41,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-02-06 12:15:42,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-02-06 12:15:42,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-02-06 12:15:42,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:42,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:42,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 12:15:42,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:42,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:42,181 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:15:42,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:42,254 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:42,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268014415] [2025-02-06 12:15:42,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268014415] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:15:42,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 12:15:42,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-06 12:15:42,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91361295] [2025-02-06 12:15:42,254 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 12:15:42,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 12:15:42,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:42,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 12:15:42,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-06 12:15:42,255 INFO L87 Difference]: Start difference. First operand 1878 states and 2437 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 12:15:42,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:42,389 INFO L93 Difference]: Finished difference Result 1904 states and 2467 transitions. [2025-02-06 12:15:42,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 12:15:42,390 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 92 [2025-02-06 12:15:42,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:42,392 INFO L225 Difference]: With dead ends: 1904 [2025-02-06 12:15:42,392 INFO L226 Difference]: Without dead ends: 1892 [2025-02-06 12:15:42,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-06 12:15:42,392 INFO L435 NwaCegarLoop]: 1131 mSDtfsCounter, 16 mSDsluCounter, 4503 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 5634 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:42,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 5634 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 12:15:42,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2025-02-06 12:15:42,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1886. [2025-02-06 12:15:42,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1886 states, 1380 states have (on average 1.7210144927536233) internal successors, (2375), 1846 states have internal predecessors, (2375), 37 states have call successors, (37), 13 states have call predecessors, (37), 12 states have return successors, (35), 28 states have call predecessors, (35), 33 states have call successors, (35) [2025-02-06 12:15:42,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 2447 transitions. [2025-02-06 12:15:42,405 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 2447 transitions. Word has length 92 [2025-02-06 12:15:42,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:42,405 INFO L471 AbstractCegarLoop]: Abstraction has 1886 states and 2447 transitions. [2025-02-06 12:15:42,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 12:15:42,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 2447 transitions. [2025-02-06 12:15:42,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-02-06 12:15:42,405 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:42,405 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:42,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-02-06 12:15:42,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:42,606 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr509REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 622 more)] === [2025-02-06 12:15:42,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:42,607 INFO L85 PathProgramCache]: Analyzing trace with hash -278224387, now seen corresponding path program 2 times [2025-02-06 12:15:42,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:42,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928444819] [2025-02-06 12:15:42,607 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:15:42,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:42,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:42,610 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:15:42,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-02-06 12:15:42,790 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes.