./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:57:03,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:57:03,211 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-08 05:57:03,220 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:57:03,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:57:03,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:57:03,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:57:03,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:57:03,247 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 05:57:03,248 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 05:57:03,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:57:03,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:57:03,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:57:03,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:57:03,248 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:57:03,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:57:03,249 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:57:03,249 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:57:03,249 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:57:03,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:57:03,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:57:03,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:57:03,249 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 05:57:03,249 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 05:57:03,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:57:03,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:57:03,251 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 05:57:03,251 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:57:03,251 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:57:03,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:57:03,251 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:57:03,252 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:57:03,252 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:57:03,252 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:57:03,252 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 05:57:03,252 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:57:03,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:57:03,253 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:57:03,253 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:57:03,253 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:57:03,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:57:03,253 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:57:03,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:57:03,254 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:57:03,254 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:57:03,254 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-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2025-02-08 05:57:03,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:57:03,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:57:03,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:57:03,564 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:57:03,565 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:57:03,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i [2025-02-08 05:57:04,769 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b206c1887/fbe82003dda34623b349e3a737dcff14/FLAGda4736ac1 [2025-02-08 05:57:05,113 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:57:05,113 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i [2025-02-08 05:57:05,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b206c1887/fbe82003dda34623b349e3a737dcff14/FLAGda4736ac1 [2025-02-08 05:57:05,353 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b206c1887/fbe82003dda34623b349e3a737dcff14 [2025-02-08 05:57:05,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:57:05,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:57:05,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:57:05,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:57:05,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:57:05,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:57:05" (1/1) ... [2025-02-08 05:57:05,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bfc5c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:05, skipping insertion in model container [2025-02-08 05:57:05,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:57:05" (1/1) ... [2025-02-08 05:57:05,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:57:05,706 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,737 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,740 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,744 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,749 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,784 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,784 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,788 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,788 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,790 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,792 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,793 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,794 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,794 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,799 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:05,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:57:05,824 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-08 05:57:05,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7156c9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:05, skipping insertion in model container [2025-02-08 05:57:05,829 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:57:05,829 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 05:57:05,831 INFO L158 Benchmark]: Toolchain (without parser) took 473.80ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 92.3MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:57:05,831 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory was 124.4MB in the beginning and 124.1MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:57:05,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.21ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 92.3MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:57:05,833 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory was 124.4MB in the beginning and 124.1MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.21ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 92.3MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 831]: 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_JEN_nondet_test2-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:57:07,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:57:08,048 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-08 05:57:08,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:57:08,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:57:08,087 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:57:08,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:57:08,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:57:08,089 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 05:57:08,089 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 05:57:08,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:57:08,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:57:08,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:57:08,091 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:57:08,091 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:57:08,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:57:08,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:57:08,092 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:57:08,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:57:08,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:57:08,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:57:08,092 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:57:08,092 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 05:57:08,093 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 05:57:08,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:57:08,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:57:08,093 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 05:57:08,093 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 05:57:08,093 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 05:57:08,093 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:57:08,094 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:57:08,094 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:57:08,094 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:57:08,094 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:57:08,094 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:57:08,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:57:08,094 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 05:57:08,094 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:57:08,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:57:08,095 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:57:08,095 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:57:08,095 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 05:57:08,095 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 05:57:08,095 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:57:08,095 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:57:08,095 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:57:08,095 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:57:08,095 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-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2025-02-08 05:57:08,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:57:08,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:57:08,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:57:08,409 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:57:08,409 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:57:08,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i [2025-02-08 05:57:09,816 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b2373bc9c/7b410153afff46d5b96eb3bed0ca7603/FLAG3aef156fa [2025-02-08 05:57:10,109 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:57:10,110 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i [2025-02-08 05:57:10,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b2373bc9c/7b410153afff46d5b96eb3bed0ca7603/FLAG3aef156fa [2025-02-08 05:57:10,145 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b2373bc9c/7b410153afff46d5b96eb3bed0ca7603 [2025-02-08 05:57:10,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:57:10,148 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:57:10,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:57:10,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:57:10,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:57:10,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:10,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167089e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10, skipping insertion in model container [2025-02-08 05:57:10,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:10,191 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:57:10,522 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,560 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,564 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,569 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,576 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,611 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,611 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,613 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,614 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,615 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,617 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,619 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,619 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,620 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,624 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:57:10,646 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 05:57:10,659 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:57:10,712 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,739 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,745 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,748 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,753 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,786 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,786 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,791 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,792 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,793 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,794 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,796 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,796 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,797 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,804 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:10,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:57:10,810 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:57:10,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:57:10,930 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:57:10,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10 WrapperNode [2025-02-08 05:57:10,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:57:10,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:57:10,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:57:10,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:57:10,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:10,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:11,011 INFO L138 Inliner]: procedures = 210, calls = 273, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 995 [2025-02-08 05:57:11,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:57:11,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:57:11,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:57:11,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:57:11,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:11,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:11,064 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:11,140 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 34, 218]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 4, 50]. [2025-02-08 05:57:11,143 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:11,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:11,193 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:11,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:11,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:11,214 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:11,227 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:57:11,231 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:57:11,231 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:57:11,231 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:57:11,232 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (1/1) ... [2025-02-08 05:57:11,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:57:11,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:57:11,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:57:11,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:57:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 05:57:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 05:57:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 05:57:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 05:57:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 05:57:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 05:57:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 05:57:11,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 05:57:11,281 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 05:57:11,281 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 05:57:11,281 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 05:57:11,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 05:57:11,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 05:57:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:57:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:57:11,468 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:57:11,470 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:57:18,867 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L812: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-08 05:57:18,924 INFO L? ?]: Removed 134 outVars from TransFormulas that were not future-live. [2025-02-08 05:57:18,925 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:57:18,939 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:57:18,942 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:57:18,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:57:18 BoogieIcfgContainer [2025-02-08 05:57:18,943 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:57:18,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:57:18,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:57:18,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:57:18,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:57:10" (1/3) ... [2025-02-08 05:57:18,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0adece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:57:18, skipping insertion in model container [2025-02-08 05:57:18,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:10" (2/3) ... [2025-02-08 05:57:18,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0adece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:57:18, skipping insertion in model container [2025-02-08 05:57:18,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:57:18" (3/3) ... [2025-02-08 05:57:18,952 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test2-2.i [2025-02-08 05:57:18,966 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:57:18,968 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_nondet_test2-2.i that has 4 procedures, 202 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2025-02-08 05:57:19,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:57:19,023 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;@37c7fdd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:57:19,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 05:57:19,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 187 states have (on average 1.6577540106951871) internal successors, (310), 189 states have internal predecessors, (310), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:57:19,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-08 05:57:19,036 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:57:19,036 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-08 05:57:19,037 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:57:19,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:57:19,042 INFO L85 PathProgramCache]: Analyzing trace with hash 355087, now seen corresponding path program 1 times [2025-02-08 05:57:19,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:57:19,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134169955] [2025-02-08 05:57:19,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:57:19,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:19,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:57:19,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:57:19,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 05:57:19,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 05:57:19,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 05:57:19,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:57:19,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:57:19,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 05:57:19,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:57:19,330 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_18| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18| (_ bv0 1)) |c_#valid|))) is different from true [2025-02-08 05:57:19,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:57:19,334 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:57:19,335 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:57:19,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134169955] [2025-02-08 05:57:19,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134169955] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:57:19,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:57:19,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:57:19,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858626082] [2025-02-08 05:57:19,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:57:19,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:57:19,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:57:19,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:57:19,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-08 05:57:19,364 INFO L87 Difference]: Start difference. First operand has 194 states, 187 states have (on average 1.6577540106951871) internal successors, (310), 189 states have internal predecessors, (310), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) 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) [2025-02-08 05:57:23,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:57:23,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:57:23,872 INFO L93 Difference]: Finished difference Result 289 states and 378 transitions. [2025-02-08 05:57:23,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:57:23,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) 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 [2025-02-08 05:57:23,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:57:23,892 INFO L225 Difference]: With dead ends: 289 [2025-02-08 05:57:23,892 INFO L226 Difference]: Without dead ends: 286 [2025-02-08 05:57:23,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-08 05:57:23,895 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 123 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 379 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-02-08 05:57:23,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 474 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 1 Unknown, 379 Unchecked, 4.5s Time] [2025-02-08 05:57:23,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2025-02-08 05:57:23,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 191. [2025-02-08 05:57:23,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 185 states have (on average 1.308108108108108) internal successors, (242), 186 states have internal predecessors, (242), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:57:23,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 248 transitions. [2025-02-08 05:57:23,935 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 248 transitions. Word has length 3 [2025-02-08 05:57:23,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:57:23,935 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 248 transitions. [2025-02-08 05:57:23,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) 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) [2025-02-08 05:57:23,935 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 248 transitions. [2025-02-08 05:57:23,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 05:57:23,936 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:57:23,936 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:57:23,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 05:57:24,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:24,137 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:57:24,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:57:24,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1489526413, now seen corresponding path program 1 times [2025-02-08 05:57:24,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:57:24,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1321892351] [2025-02-08 05:57:24,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:57:24,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:24,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:57:24,141 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:57:24,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 05:57:24,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 05:57:24,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 05:57:24,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:57:24,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:57:24,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:57:24,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:57:24,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:57:24,428 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:57:24,429 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:57:24,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321892351] [2025-02-08 05:57:24,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321892351] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:57:24,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:57:24,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:57:24,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922644975] [2025-02-08 05:57:24,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:57:24,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:57:24,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:57:24,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:57:24,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:57:24,432 INFO L87 Difference]: Start difference. First operand 191 states and 248 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:57:25,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:57:25,029 INFO L93 Difference]: Finished difference Result 310 states and 402 transitions. [2025-02-08 05:57:25,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:57:25,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2025-02-08 05:57:25,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:57:25,032 INFO L225 Difference]: With dead ends: 310 [2025-02-08 05:57:25,032 INFO L226 Difference]: Without dead ends: 310 [2025-02-08 05:57:25,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:57:25,033 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 145 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-08 05:57:25,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 457 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-08 05:57:25,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2025-02-08 05:57:25,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 278. [2025-02-08 05:57:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 272 states have (on average 1.3088235294117647) internal successors, (356), 273 states have internal predecessors, (356), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:57:25,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 362 transitions. [2025-02-08 05:57:25,047 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 362 transitions. Word has length 12 [2025-02-08 05:57:25,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:57:25,048 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 362 transitions. [2025-02-08 05:57:25,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:57:25,048 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 362 transitions. [2025-02-08 05:57:25,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 05:57:25,049 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:57:25,049 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:57:25,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 05:57:25,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:25,249 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:57:25,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:57:25,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1489556204, now seen corresponding path program 1 times [2025-02-08 05:57:25,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:57:25,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387830049] [2025-02-08 05:57:25,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:57:25,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:25,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:57:25,253 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:57:25,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 05:57:25,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 05:57:25,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 05:57:25,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:57:25,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:57:25,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 05:57:25,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:57:25,530 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_19| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_19| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_19|)))) is different from true [2025-02-08 05:57:25,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:57:25,531 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:57:25,531 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:57:25,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387830049] [2025-02-08 05:57:25,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387830049] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:57:25,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:57:25,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:57:25,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113396177] [2025-02-08 05:57:25,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:57:25,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:57:25,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:57:25,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:57:25,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-08 05:57:25,533 INFO L87 Difference]: Start difference. First operand 278 states and 362 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:57:29,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:57:30,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:57:30,305 INFO L93 Difference]: Finished difference Result 354 states and 459 transitions. [2025-02-08 05:57:30,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:57:30,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2025-02-08 05:57:30,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:57:30,316 INFO L225 Difference]: With dead ends: 354 [2025-02-08 05:57:30,316 INFO L226 Difference]: Without dead ends: 353 [2025-02-08 05:57:30,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-08 05:57:30,317 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 89 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 348 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2025-02-08 05:57:30,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 471 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 1 Unknown, 348 Unchecked, 4.8s Time] [2025-02-08 05:57:30,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2025-02-08 05:57:30,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 326. [2025-02-08 05:57:30,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 320 states have (on average 1.30625) internal successors, (418), 321 states have internal predecessors, (418), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:57:30,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 424 transitions. [2025-02-08 05:57:30,334 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 424 transitions. Word has length 12 [2025-02-08 05:57:30,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:57:30,334 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 424 transitions. [2025-02-08 05:57:30,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:57:30,334 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 424 transitions. [2025-02-08 05:57:30,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-02-08 05:57:30,335 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:57:30,335 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] [2025-02-08 05:57:30,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 05:57:30,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:30,535 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:57:30,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:57:30,536 INFO L85 PathProgramCache]: Analyzing trace with hash 375391844, now seen corresponding path program 1 times [2025-02-08 05:57:30,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:57:30,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [875422260] [2025-02-08 05:57:30,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:57:30,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:30,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:57:30,540 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:57:30,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 05:57:30,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 05:57:30,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 05:57:30,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:57:30,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:57:30,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 05:57:30,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:57:30,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:57:30,809 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:57:30,810 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:57:30,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875422260] [2025-02-08 05:57:30,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875422260] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:57:30,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:57:30,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:57:30,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996913588] [2025-02-08 05:57:30,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:57:30,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:57:30,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:57:30,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:57:30,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:57:30,811 INFO L87 Difference]: Start difference. First operand 326 states and 424 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:57:34,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:57:37,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:57:37,083 INFO L93 Difference]: Finished difference Result 360 states and 465 transitions. [2025-02-08 05:57:37,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:57:37,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2025-02-08 05:57:37,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:57:37,086 INFO L225 Difference]: With dead ends: 360 [2025-02-08 05:57:37,086 INFO L226 Difference]: Without dead ends: 356 [2025-02-08 05:57:37,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:57:37,087 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 147 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2025-02-08 05:57:37,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 721 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2025-02-08 05:57:37,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-02-08 05:57:37,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 324. [2025-02-08 05:57:37,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 318 states have (on average 1.3050314465408805) internal successors, (415), 319 states have internal predecessors, (415), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:57:37,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 421 transitions. [2025-02-08 05:57:37,100 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 421 transitions. Word has length 21 [2025-02-08 05:57:37,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:57:37,100 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 421 transitions. [2025-02-08 05:57:37,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:57:37,100 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 421 transitions. [2025-02-08 05:57:37,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-02-08 05:57:37,101 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:57:37,101 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] [2025-02-08 05:57:37,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 05:57:37,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:37,306 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:57:37,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:57:37,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1918222445, now seen corresponding path program 1 times [2025-02-08 05:57:37,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:57:37,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250914571] [2025-02-08 05:57:37,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:57:37,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:37,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:57:37,309 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:57:37,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 05:57:37,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-08 05:57:37,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-08 05:57:37,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:57:37,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:57:37,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:57:37,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:57:37,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:57:37,490 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:57:37,490 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:57:37,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250914571] [2025-02-08 05:57:37,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250914571] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:57:37,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:57:37,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:57:37,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918397339] [2025-02-08 05:57:37,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:57:37,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:57:37,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:57:37,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:57:37,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:57:37,492 INFO L87 Difference]: Start difference. First operand 324 states and 421 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:57:37,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:57:37,594 INFO L93 Difference]: Finished difference Result 384 states and 481 transitions. [2025-02-08 05:57:37,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:57:37,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2025-02-08 05:57:37,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:57:37,596 INFO L225 Difference]: With dead ends: 384 [2025-02-08 05:57:37,596 INFO L226 Difference]: Without dead ends: 384 [2025-02-08 05:57:37,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:57:37,596 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 8 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:57:37,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 441 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:57:37,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2025-02-08 05:57:37,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2025-02-08 05:57:37,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 378 states have (on average 1.2566137566137565) internal successors, (475), 379 states have internal predecessors, (475), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:57:37,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 481 transitions. [2025-02-08 05:57:37,610 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 481 transitions. Word has length 47 [2025-02-08 05:57:37,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:57:37,610 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 481 transitions. [2025-02-08 05:57:37,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:57:37,610 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 481 transitions. [2025-02-08 05:57:37,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-02-08 05:57:37,611 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:57:37,611 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] [2025-02-08 05:57:37,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 05:57:37,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:37,812 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:57:37,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:57:37,813 INFO L85 PathProgramCache]: Analyzing trace with hash -2122008306, now seen corresponding path program 1 times [2025-02-08 05:57:37,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:57:37,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227119726] [2025-02-08 05:57:37,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:57:37,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:37,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:57:37,815 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:57:37,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 05:57:37,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-08 05:57:37,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-08 05:57:37,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:57:37,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:57:37,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:57:37,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:57:38,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:57:38,015 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:57:38,015 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:57:38,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227119726] [2025-02-08 05:57:38,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227119726] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:57:38,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:57:38,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:57:38,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091700942] [2025-02-08 05:57:38,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:57:38,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:57:38,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:57:38,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:57:38,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:57:38,016 INFO L87 Difference]: Start difference. First operand 384 states and 481 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:57:38,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:57:38,151 INFO L93 Difference]: Finished difference Result 333 states and 397 transitions. [2025-02-08 05:57:38,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 05:57:38,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 47 [2025-02-08 05:57:38,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:57:38,154 INFO L225 Difference]: With dead ends: 333 [2025-02-08 05:57:38,155 INFO L226 Difference]: Without dead ends: 333 [2025-02-08 05:57:38,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:57:38,156 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 32 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:57:38,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 634 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:57:38,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2025-02-08 05:57:38,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2025-02-08 05:57:38,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 327 states have (on average 1.1957186544342508) internal successors, (391), 328 states have internal predecessors, (391), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:57:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 397 transitions. [2025-02-08 05:57:38,166 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 397 transitions. Word has length 47 [2025-02-08 05:57:38,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:57:38,168 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 397 transitions. [2025-02-08 05:57:38,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:57:38,169 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 397 transitions. [2025-02-08 05:57:38,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-02-08 05:57:38,170 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:57:38,170 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] [2025-02-08 05:57:38,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 05:57:38,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:38,370 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:57:38,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:57:38,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1435727257, now seen corresponding path program 1 times [2025-02-08 05:57:38,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:57:38,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1103497248] [2025-02-08 05:57:38,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:57:38,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:38,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:57:38,373 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:57:38,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 05:57:38,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-08 05:57:38,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-08 05:57:38,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:57:38,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:57:38,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 05:57:38,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:57:38,552 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:57:38,553 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:57:38,554 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:57:38,558 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 [2025-02-08 05:57:38,646 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:57:38,646 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 [2025-02-08 05:57:38,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:57:38,710 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:57:38,710 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:57:38,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103497248] [2025-02-08 05:57:38,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103497248] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:57:38,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:57:38,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:57:38,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036347361] [2025-02-08 05:57:38,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:57:38,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 05:57:38,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:57:38,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 05:57:38,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:57:38,711 INFO L87 Difference]: Start difference. First operand 333 states and 397 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:57:39,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:57:39,297 INFO L93 Difference]: Finished difference Result 334 states and 408 transitions. [2025-02-08 05:57:39,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 05:57:39,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 47 [2025-02-08 05:57:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:57:39,300 INFO L225 Difference]: With dead ends: 334 [2025-02-08 05:57:39,300 INFO L226 Difference]: Without dead ends: 331 [2025-02-08 05:57:39,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 05:57:39,301 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 106 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 05:57:39,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 972 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 05:57:39,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2025-02-08 05:57:39,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 285. [2025-02-08 05:57:39,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 279 states have (on average 1.2186379928315412) internal successors, (340), 280 states have internal predecessors, (340), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:57:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 346 transitions. [2025-02-08 05:57:39,312 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 346 transitions. Word has length 47 [2025-02-08 05:57:39,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:57:39,313 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 346 transitions. [2025-02-08 05:57:39,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:57:39,313 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 346 transitions. [2025-02-08 05:57:39,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-02-08 05:57:39,315 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:57:39,315 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:57:39,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 05:57:39,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:39,516 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:57:39,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:57:39,516 INFO L85 PathProgramCache]: Analyzing trace with hash 636009277, now seen corresponding path program 1 times [2025-02-08 05:57:39,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:57:39,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721797909] [2025-02-08 05:57:39,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:57:39,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:39,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:57:39,519 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) [2025-02-08 05:57:39,521 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 [2025-02-08 05:57:39,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-08 05:57:39,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-08 05:57:39,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:57:39,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:57:39,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:57:39,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:57:39,954 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 05:57:39,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:57:39,956 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:57:39,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721797909] [2025-02-08 05:57:39,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721797909] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:57:39,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:57:39,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:57:39,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79231316] [2025-02-08 05:57:39,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:57:39,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:57:39,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:57:39,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:57:39,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:57:39,958 INFO L87 Difference]: Start difference. First operand 285 states and 346 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:57:40,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:57:40,067 INFO L93 Difference]: Finished difference Result 325 states and 386 transitions. [2025-02-08 05:57:40,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:57:40,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2025-02-08 05:57:40,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:57:40,069 INFO L225 Difference]: With dead ends: 325 [2025-02-08 05:57:40,069 INFO L226 Difference]: Without dead ends: 325 [2025-02-08 05:57:40,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:57:40,071 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 8 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:57:40,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 419 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:57:40,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2025-02-08 05:57:40,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2025-02-08 05:57:40,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 319 states have (on average 1.1912225705329154) internal successors, (380), 320 states have internal predecessors, (380), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:57:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 386 transitions. [2025-02-08 05:57:40,078 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 386 transitions. Word has length 82 [2025-02-08 05:57:40,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:57:40,078 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 386 transitions. [2025-02-08 05:57:40,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:57:40,079 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 386 transitions. [2025-02-08 05:57:40,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-02-08 05:57:40,081 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:57:40,081 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:57:40,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-08 05:57:40,281 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 [2025-02-08 05:57:40,281 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:57:40,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:57:40,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1484277922, now seen corresponding path program 1 times [2025-02-08 05:57:40,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:57:40,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466782172] [2025-02-08 05:57:40,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:57:40,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:40,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:57:40,284 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) [2025-02-08 05:57:40,285 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 [2025-02-08 05:57:40,530 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-08 05:57:40,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-08 05:57:40,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:57:40,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:57:40,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:57:40,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:57:40,960 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 05:57:40,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:57:40,961 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:57:40,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466782172] [2025-02-08 05:57:40,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466782172] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:57:40,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:57:40,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:57:40,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202644725] [2025-02-08 05:57:40,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:57:40,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:57:40,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:57:40,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:57:40,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:57:40,972 INFO L87 Difference]: Start difference. First operand 325 states and 386 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:57:45,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:57:47,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:57:48,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:57:48,858 INFO L93 Difference]: Finished difference Result 343 states and 419 transitions. [2025-02-08 05:57:48,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 05:57:48,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2025-02-08 05:57:48,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:57:48,863 INFO L225 Difference]: With dead ends: 343 [2025-02-08 05:57:48,863 INFO L226 Difference]: Without dead ends: 343 [2025-02-08 05:57:48,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:57:48,863 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 410 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2025-02-08 05:57:48,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 396 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2025-02-08 05:57:48,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2025-02-08 05:57:48,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 275. [2025-02-08 05:57:48,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 269 states have (on average 1.204460966542751) internal successors, (324), 270 states have internal predecessors, (324), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:57:48,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 330 transitions. [2025-02-08 05:57:48,872 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 330 transitions. Word has length 82 [2025-02-08 05:57:48,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:57:48,872 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 330 transitions. [2025-02-08 05:57:48,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:57:48,872 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 330 transitions. [2025-02-08 05:57:48,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-02-08 05:57:48,874 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:57:48,874 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:57:48,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-08 05:57:49,074 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 [2025-02-08 05:57:49,074 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:57:49,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:57:49,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1361706446, now seen corresponding path program 1 times [2025-02-08 05:57:49,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:57:49,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014219738] [2025-02-08 05:57:49,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:57:49,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:49,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:57:49,078 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) [2025-02-08 05:57:49,079 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 [2025-02-08 05:57:49,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-02-08 05:57:49,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-02-08 05:57:49,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:57:49,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:57:49,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:57:49,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:57:49,526 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 05:57:49,527 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:57:49,527 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:57:49,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014219738] [2025-02-08 05:57:49,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014219738] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:57:49,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:57:49,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:57:49,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355379464] [2025-02-08 05:57:49,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:57:49,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:57:49,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:57:49,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:57:49,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:57:49,529 INFO L87 Difference]: Start difference. First operand 275 states and 330 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:57:49,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:57:49,653 INFO L93 Difference]: Finished difference Result 241 states and 274 transitions. [2025-02-08 05:57:49,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 05:57:49,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2025-02-08 05:57:49,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:57:49,655 INFO L225 Difference]: With dead ends: 241 [2025-02-08 05:57:49,655 INFO L226 Difference]: Without dead ends: 241 [2025-02-08 05:57:49,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:57:49,656 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 32 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:57:49,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 595 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:57:49,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2025-02-08 05:57:49,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2025-02-08 05:57:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 235 states have (on average 1.1404255319148937) internal successors, (268), 236 states have internal predecessors, (268), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:57:49,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 274 transitions. [2025-02-08 05:57:49,662 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 274 transitions. Word has length 91 [2025-02-08 05:57:49,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:57:49,662 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 274 transitions. [2025-02-08 05:57:49,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:57:49,663 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 274 transitions. [2025-02-08 05:57:49,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-02-08 05:57:49,664 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:57:49,664 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:57:49,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-08 05:57:49,868 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 [2025-02-08 05:57:49,868 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:57:49,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:57:49,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1719537017, now seen corresponding path program 1 times [2025-02-08 05:57:49,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:57:49,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064034781] [2025-02-08 05:57:49,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:57:49,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:57:49,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:57:49,871 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) [2025-02-08 05:57:49,872 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 [2025-02-08 05:57:50,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-02-08 05:57:50,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-02-08 05:57:50,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:57:50,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:57:50,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 05:57:50,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:57:50,292 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 05:57:50,292 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:57:50,292 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:57:50,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064034781] [2025-02-08 05:57:50,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064034781] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:57:50,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:57:50,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:57:50,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795700] [2025-02-08 05:57:50,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:57:50,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:57:50,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:57:50,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:57:50,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:57:50,294 INFO L87 Difference]: Start difference. First operand 241 states and 274 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:57:54,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:57:58,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:58:01,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:58:02,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:02,064 INFO L93 Difference]: Finished difference Result 243 states and 276 transitions. [2025-02-08 05:58:02,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:58:02,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2025-02-08 05:58:02,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:02,067 INFO L225 Difference]: With dead ends: 243 [2025-02-08 05:58:02,067 INFO L226 Difference]: Without dead ends: 243 [2025-02-08 05:58:02,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:58:02,068 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 201 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:02,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 390 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2025-02-08 05:58:02,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2025-02-08 05:58:02,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 242. [2025-02-08 05:58:02,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 236 states have (on average 1.1398305084745763) internal successors, (269), 237 states have internal predecessors, (269), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:58:02,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 275 transitions. [2025-02-08 05:58:02,074 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 275 transitions. Word has length 91 [2025-02-08 05:58:02,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:02,074 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 275 transitions. [2025-02-08 05:58:02,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:02,075 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 275 transitions. [2025-02-08 05:58:02,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-02-08 05:58:02,076 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:02,076 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:02,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 05:58:02,276 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 [2025-02-08 05:58:02,277 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:02,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:02,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1719566808, now seen corresponding path program 1 times [2025-02-08 05:58:02,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:02,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873399939] [2025-02-08 05:58:02,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:58:02,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:02,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:02,281 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) [2025-02-08 05:58:02,284 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 [2025-02-08 05:58:02,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-02-08 05:58:02,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-02-08 05:58:02,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:58:02,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:02,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:58:02,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:02,740 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 05:58:02,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:58:02,740 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:02,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873399939] [2025-02-08 05:58:02,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873399939] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:58:02,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:58:02,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:58:02,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196212648] [2025-02-08 05:58:02,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:58:02,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:58:02,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:02,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:58:02,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:58:02,742 INFO L87 Difference]: Start difference. First operand 242 states and 275 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:02,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:02,791 INFO L93 Difference]: Finished difference Result 245 states and 279 transitions. [2025-02-08 05:58:02,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:58:02,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2025-02-08 05:58:02,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:02,794 INFO L225 Difference]: With dead ends: 245 [2025-02-08 05:58:02,794 INFO L226 Difference]: Without dead ends: 245 [2025-02-08 05:58:02,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:58:02,795 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 0 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:02,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 659 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 05:58:02,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2025-02-08 05:58:02,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2025-02-08 05:58:02,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 238 states have (on average 1.1428571428571428) internal successors, (272), 240 states have internal predecessors, (272), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 05:58:02,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 279 transitions. [2025-02-08 05:58:02,804 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 279 transitions. Word has length 91 [2025-02-08 05:58:02,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:02,804 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 279 transitions. [2025-02-08 05:58:02,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:02,804 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 279 transitions. [2025-02-08 05:58:02,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-02-08 05:58:02,805 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:02,805 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:02,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-08 05:58:03,006 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 [2025-02-08 05:58:03,006 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:03,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:03,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1039140836, now seen corresponding path program 1 times [2025-02-08 05:58:03,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:03,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [402206388] [2025-02-08 05:58:03,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:58:03,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:03,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:03,009 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) [2025-02-08 05:58:03,010 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 [2025-02-08 05:58:03,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-08 05:58:03,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-08 05:58:03,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:58:03,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:03,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:58:03,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:03,462 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 05:58:03,464 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:58:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 05:58:03,555 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:03,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402206388] [2025-02-08 05:58:03,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402206388] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:58:03,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:58:03,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 05:58:03,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297252322] [2025-02-08 05:58:03,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 05:58:03,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 05:58:03,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:03,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 05:58:03,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 05:58:03,557 INFO L87 Difference]: Start difference. First operand 245 states and 279 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 05:58:03,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:03,719 INFO L93 Difference]: Finished difference Result 256 states and 296 transitions. [2025-02-08 05:58:03,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 05:58:03,720 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 93 [2025-02-08 05:58:03,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:03,721 INFO L225 Difference]: With dead ends: 256 [2025-02-08 05:58:03,721 INFO L226 Difference]: Without dead ends: 256 [2025-02-08 05:58:03,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-08 05:58:03,722 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 4 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:03,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 875 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:58:03,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2025-02-08 05:58:03,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 254. [2025-02-08 05:58:03,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 246 states have (on average 1.1626016260162602) internal successors, (286), 248 states have internal predecessors, (286), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-02-08 05:58:03,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 294 transitions. [2025-02-08 05:58:03,731 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 294 transitions. Word has length 93 [2025-02-08 05:58:03,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:03,731 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 294 transitions. [2025-02-08 05:58:03,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 05:58:03,732 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 294 transitions. [2025-02-08 05:58:03,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-08 05:58:03,732 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:03,733 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:03,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-08 05:58:03,933 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 [2025-02-08 05:58:03,934 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:03,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:03,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1693021976, now seen corresponding path program 2 times [2025-02-08 05:58:03,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:03,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2026466008] [2025-02-08 05:58:03,935 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:58:03,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:03,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:03,939 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) [2025-02-08 05:58:03,941 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 [2025-02-08 05:58:04,236 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 97 statements into 2 equivalence classes. [2025-02-08 05:58:04,414 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 97 of 97 statements. [2025-02-08 05:58:04,415 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 05:58:04,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:04,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 05:58:04,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 05:58:04,583 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:58:04,862 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 05:58:04,863 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:04,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026466008] [2025-02-08 05:58:04,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026466008] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:58:04,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:58:04,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-08 05:58:04,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45610966] [2025-02-08 05:58:04,863 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 05:58:04,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:58:04,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:04,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:58:04,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:58:04,865 INFO L87 Difference]: Start difference. First operand 254 states and 294 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 05:58:05,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:05,302 INFO L93 Difference]: Finished difference Result 262 states and 304 transitions. [2025-02-08 05:58:05,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 05:58:05,303 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 97 [2025-02-08 05:58:05,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:05,304 INFO L225 Difference]: With dead ends: 262 [2025-02-08 05:58:05,304 INFO L226 Difference]: Without dead ends: 260 [2025-02-08 05:58:05,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-08 05:58:05,305 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 5 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:05,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1099 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 05:58:05,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2025-02-08 05:58:05,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2025-02-08 05:58:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 250 states have (on average 1.168) internal successors, (292), 252 states have internal predecessors, (292), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 05:58:05,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 299 transitions. [2025-02-08 05:58:05,312 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 299 transitions. Word has length 97 [2025-02-08 05:58:05,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:05,312 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 299 transitions. [2025-02-08 05:58:05,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 05:58:05,312 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 299 transitions. [2025-02-08 05:58:05,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-02-08 05:58:05,313 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:05,313 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:05,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-02-08 05:58:05,514 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 [2025-02-08 05:58:05,515 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:05,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:05,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1478437736, now seen corresponding path program 3 times [2025-02-08 05:58:05,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:05,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1583534493] [2025-02-08 05:58:05,516 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:58:05,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:05,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:05,519 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) [2025-02-08 05:58:05,521 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 [2025-02-08 05:58:05,836 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 101 statements into 6 equivalence classes. [2025-02-08 05:58:05,990 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 84 of 101 statements. [2025-02-08 05:58:05,991 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 05:58:05,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:06,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 05:58:06,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:06,647 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:58:06,647 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:58:06,647 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 05:58:06,649 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 [2025-02-08 05:58:06,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 05:58:06,755 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 [2025-02-08 05:58:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 05:58:06,790 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:58:06,790 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:06,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583534493] [2025-02-08 05:58:06,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583534493] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:58:06,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:58:06,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 05:58:06,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819521511] [2025-02-08 05:58:06,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:58:06,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:58:06,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:06,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:58:06,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:58:06,791 INFO L87 Difference]: Start difference. First operand 258 states and 299 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:07,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:07,162 INFO L93 Difference]: Finished difference Result 325 states and 373 transitions. [2025-02-08 05:58:07,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:58:07,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2025-02-08 05:58:07,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:07,165 INFO L225 Difference]: With dead ends: 325 [2025-02-08 05:58:07,165 INFO L226 Difference]: Without dead ends: 325 [2025-02-08 05:58:07,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2025-02-08 05:58:07,166 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 248 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:07,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 676 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 05:58:07,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2025-02-08 05:58:07,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 260. [2025-02-08 05:58:07,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 252 states have (on average 1.1666666666666667) internal successors, (294), 254 states have internal predecessors, (294), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 05:58:07,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 301 transitions. [2025-02-08 05:58:07,175 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 301 transitions. Word has length 101 [2025-02-08 05:58:07,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:07,176 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 301 transitions. [2025-02-08 05:58:07,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:07,176 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 301 transitions. [2025-02-08 05:58:07,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-08 05:58:07,177 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:07,178 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:07,192 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 [2025-02-08 05:58:07,378 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 [2025-02-08 05:58:07,379 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:07,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:07,379 INFO L85 PathProgramCache]: Analyzing trace with hash -991725847, now seen corresponding path program 1 times [2025-02-08 05:58:07,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:07,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031164751] [2025-02-08 05:58:07,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:58:07,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:07,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:07,381 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) [2025-02-08 05:58:07,382 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 [2025-02-08 05:58:07,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-08 05:58:07,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-08 05:58:07,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:58:07,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:07,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 05:58:07,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 05:58:08,074 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:58:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 05:58:08,416 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:08,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031164751] [2025-02-08 05:58:08,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031164751] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:58:08,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:58:08,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-02-08 05:58:08,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298029708] [2025-02-08 05:58:08,416 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 05:58:08,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-08 05:58:08,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:08,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-08 05:58:08,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-02-08 05:58:08,417 INFO L87 Difference]: Start difference. First operand 260 states and 301 transitions. Second operand has 14 states, 14 states have (on average 9.5) internal successors, (133), 14 states have internal predecessors, (133), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 05:58:09,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:09,045 INFO L93 Difference]: Finished difference Result 272 states and 317 transitions. [2025-02-08 05:58:09,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-08 05:58:09,046 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.5) internal successors, (133), 14 states have internal predecessors, (133), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 135 [2025-02-08 05:58:09,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:09,047 INFO L225 Difference]: With dead ends: 272 [2025-02-08 05:58:09,047 INFO L226 Difference]: Without dead ends: 268 [2025-02-08 05:58:09,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2025-02-08 05:58:09,047 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 7 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:09,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1534 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 05:58:09,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2025-02-08 05:58:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 266. [2025-02-08 05:58:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 258 states have (on average 1.178294573643411) internal successors, (304), 260 states have internal predecessors, (304), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 05:58:09,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 311 transitions. [2025-02-08 05:58:09,064 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 311 transitions. Word has length 135 [2025-02-08 05:58:09,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:09,064 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 311 transitions. [2025-02-08 05:58:09,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.5) internal successors, (133), 14 states have internal predecessors, (133), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 05:58:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 311 transitions. [2025-02-08 05:58:09,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-08 05:58:09,065 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:09,066 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:09,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-08 05:58:09,266 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 [2025-02-08 05:58:09,266 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:09,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:09,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1010852695, now seen corresponding path program 2 times [2025-02-08 05:58:09,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:09,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1847289298] [2025-02-08 05:58:09,268 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:58:09,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:09,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:09,270 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) [2025-02-08 05:58:09,272 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 [2025-02-08 05:58:09,599 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 141 statements into 2 equivalence classes. [2025-02-08 05:58:09,856 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 141 of 141 statements. [2025-02-08 05:58:09,856 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 05:58:09,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:09,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 05:58:09,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:10,053 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 82 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-02-08 05:58:10,053 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:58:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-02-08 05:58:10,539 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:10,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847289298] [2025-02-08 05:58:10,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847289298] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:58:10,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:58:10,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2025-02-08 05:58:10,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941056501] [2025-02-08 05:58:10,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 05:58:10,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 05:58:10,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:10,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 05:58:10,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2025-02-08 05:58:10,541 INFO L87 Difference]: Start difference. First operand 266 states and 311 transitions. Second operand has 18 states, 18 states have (on average 7.833333333333333) internal successors, (141), 18 states have internal predecessors, (141), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 05:58:11,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:11,804 INFO L93 Difference]: Finished difference Result 280 states and 330 transitions. [2025-02-08 05:58:11,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-08 05:58:11,805 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.833333333333333) internal successors, (141), 18 states have internal predecessors, (141), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 141 [2025-02-08 05:58:11,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:11,806 INFO L225 Difference]: With dead ends: 280 [2025-02-08 05:58:11,806 INFO L226 Difference]: Without dead ends: 274 [2025-02-08 05:58:11,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=324, Invalid=606, Unknown=0, NotChecked=0, Total=930 [2025-02-08 05:58:11,807 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 10 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:11,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1763 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-08 05:58:11,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2025-02-08 05:58:11,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2025-02-08 05:58:11,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 266 states have (on average 1.169172932330827) internal successors, (311), 268 states have internal predecessors, (311), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 05:58:11,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 318 transitions. [2025-02-08 05:58:11,811 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 318 transitions. Word has length 141 [2025-02-08 05:58:11,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:11,812 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 318 transitions. [2025-02-08 05:58:11,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.833333333333333) internal successors, (141), 18 states have internal predecessors, (141), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 05:58:11,812 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 318 transitions. [2025-02-08 05:58:11,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-02-08 05:58:11,814 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:11,814 INFO L218 NwaCegarLoop]: trace histogram [24, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:11,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-08 05:58:12,015 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 [2025-02-08 05:58:12,015 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:12,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash 32970665, now seen corresponding path program 3 times [2025-02-08 05:58:12,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:12,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [224763106] [2025-02-08 05:58:12,016 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:58:12,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:12,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:12,018 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) [2025-02-08 05:58:12,019 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 [2025-02-08 05:58:12,384 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 149 statements into 10 equivalence classes.