./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_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-?-c00e63d-m [2025-02-06 09:52:44,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:52:44,791 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-06 09:52:44,798 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:52:44,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:52:44,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:52:44,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:52:44,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:52:44,830 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:52:44,830 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:52:44,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:52:44,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:52:44,831 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:52:44,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:52:44,831 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:52:44,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:52:44,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:52:44,832 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:52:44,832 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:52:44,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:52:44,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:52:44,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:52:44,833 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:52:44,833 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:52:44,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:52:44,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:52:44,833 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:52:44,833 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:52:44,833 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:52:44,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:52:44,834 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:52:44,834 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:52:44,834 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:52:44,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:52:44,834 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:52:44,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:52:44,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:52:44,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:52:44,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:52:44,835 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:52:44,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:52:44,835 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:52:44,835 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:52:44,836 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:52:44,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:52:44,836 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 [2025-02-06 09:52:45,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:52:45,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:52:45,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:52:45,104 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:52:45,104 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:52:45,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2025-02-06 09:52:46,335 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b523691b/7efdbc5c5b0d4fc1a86cc67f92fbc680/FLAG71bee7a30 [2025-02-06 09:52:46,676 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:52:46,676 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2025-02-06 09:52:46,696 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b523691b/7efdbc5c5b0d4fc1a86cc67f92fbc680/FLAG71bee7a30 [2025-02-06 09:52:46,714 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b523691b/7efdbc5c5b0d4fc1a86cc67f92fbc680 [2025-02-06 09:52:46,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:52:46,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:52:46,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:52:46,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:52:46,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:52:46,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:52:46" (1/1) ... [2025-02-06 09:52:46,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf49350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:46, skipping insertion in model container [2025-02-06 09:52:46,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:52:46" (1/1) ... [2025-02-06 09:52:46,772 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:52:47,176 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,214 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,219 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,222 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,229 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,264 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,265 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,268 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,270 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,271 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,273 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,273 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,278 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:47,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:52:47,301 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-06 09:52:47,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@442d21ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:47, skipping insertion in model container [2025-02-06 09:52:47,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:52:47,303 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 09:52:47,304 INFO L158 Benchmark]: Toolchain (without parser) took 585.87ms. Allocated memory is still 201.3MB. Free memory was 157.1MB in the beginning and 137.4MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:52:47,304 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:52:47,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.29ms. Allocated memory is still 201.3MB. Free memory was 156.7MB in the beginning and 137.4MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:52:47,306 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.29ms. Allocated memory is still 201.3MB. Free memory was 156.7MB in the beginning and 137.4MB in the end (delta: 19.3MB). 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_OAT_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-?-c00e63d-m [2025-02-06 09:52:49,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:52:49,420 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-06 09:52:49,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:52:49,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:52:49,458 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:52:49,459 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:52:49,459 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:52:49,459 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:52:49,459 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:52:49,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:52:49,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:52:49,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:52:49,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:52:49,461 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:52:49,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:52:49,461 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:52:49,461 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:52:49,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:52:49,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:52:49,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:52:49,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:52:49,462 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:52:49,462 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:52:49,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:52:49,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:52:49,463 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:52:49,463 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 09:52:49,463 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 09:52:49,463 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:52:49,463 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:52:49,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:52:49,464 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:52:49,464 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:52:49,464 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:52:49,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:52:49,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:52:49,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:52:49,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:52:49,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:52:49,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:52:49,465 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 09:52:49,465 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 09:52:49,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:52:49,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:52:49,466 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:52:49,466 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:52:49,466 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 [2025-02-06 09:52:49,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:52:49,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:52:49,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:52:49,771 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:52:49,771 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:52:49,772 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2025-02-06 09:52:51,068 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b71a47988/508e869f3e1743aaa19f675003e3fb06/FLAGb5435e0ba [2025-02-06 09:52:51,396 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:52:51,397 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2025-02-06 09:52:51,420 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b71a47988/508e869f3e1743aaa19f675003e3fb06/FLAGb5435e0ba [2025-02-06 09:52:51,438 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b71a47988/508e869f3e1743aaa19f675003e3fb06 [2025-02-06 09:52:51,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:52:51,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:52:51,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:52:51,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:52:51,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:52:51,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:52:51" (1/1) ... [2025-02-06 09:52:51,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7202e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:51, skipping insertion in model container [2025-02-06 09:52:51,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:52:51" (1/1) ... [2025-02-06 09:52:51,494 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:52:51,815 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,854 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,860 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,866 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,877 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,915 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,916 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,918 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,918 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,919 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,921 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,922 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,923 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,924 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,927 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:51,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:52:51,947 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 09:52:51,966 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:52:52,008 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,033 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,037 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,038 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,045 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,076 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,076 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,077 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,078 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,083 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,084 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,084 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,085 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,085 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,089 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:52:52,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:52:52,097 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:52:52,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:52:52,233 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:52:52,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52 WrapperNode [2025-02-06 09:52:52,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:52:52,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:52:52,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:52:52,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:52:52,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (1/1) ... [2025-02-06 09:52:52,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (1/1) ... [2025-02-06 09:52:52,322 INFO L138 Inliner]: procedures = 210, calls = 273, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 995 [2025-02-06 09:52:52,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:52:52,325 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:52:52,325 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:52:52,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:52:52,334 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (1/1) ... [2025-02-06 09:52:52,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (1/1) ... [2025-02-06 09:52:52,365 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (1/1) ... [2025-02-06 09:52:52,438 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]. [2025-02-06 09:52:52,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (1/1) ... [2025-02-06 09:52:52,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (1/1) ... [2025-02-06 09:52:52,484 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (1/1) ... [2025-02-06 09:52:52,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (1/1) ... [2025-02-06 09:52:52,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (1/1) ... [2025-02-06 09:52:52,493 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (1/1) ... [2025-02-06 09:52:52,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:52:52,507 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:52:52,507 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:52:52,507 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:52:52,508 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (1/1) ... [2025-02-06 09:52:52,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:52:52,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:52:52,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:52:52,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:52:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-06 09:52:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 09:52:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 09:52:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 09:52:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 09:52:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 09:52:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:52:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:52:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 09:52:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 09:52:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 09:52:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:52:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:52:52,758 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:52:52,759 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:53:00,118 INFO L1309 $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; [2025-02-06 09:53:00,189 INFO L? ?]: Removed 134 outVars from TransFormulas that were not future-live. [2025-02-06 09:53:00,189 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:53:00,204 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:53:00,205 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:53:00,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:53:00 BoogieIcfgContainer [2025-02-06 09:53:00,206 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:53:00,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:53:00,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:53:00,212 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:53:00,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:52:51" (1/3) ... [2025-02-06 09:53:00,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6789e92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:53:00, skipping insertion in model container [2025-02-06 09:53:00,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:52:52" (2/3) ... [2025-02-06 09:53:00,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6789e92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:53:00, skipping insertion in model container [2025-02-06 09:53:00,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:53:00" (3/3) ... [2025-02-06 09:53:00,215 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test2-2.i [2025-02-06 09:53:00,228 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:53:00,230 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_nondet_test2-2.i that has 4 procedures, 203 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2025-02-06 09:53:00,272 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:53:00,284 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;@2deb2b5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:53:00,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 09:53:00,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 195 states, 188 states have (on average 1.6542553191489362) internal successors, (311), 190 states have internal predecessors, (311), 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) [2025-02-06 09:53:00,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-06 09:53:00,297 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:00,297 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-06 09:53:00,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:00,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:00,303 INFO L85 PathProgramCache]: Analyzing trace with hash 11050056, now seen corresponding path program 1 times [2025-02-06 09:53:00,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:00,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1329515228] [2025-02-06 09:53:00,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:00,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:00,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:00,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:00,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:53:00,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 09:53:00,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 09:53:00,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:00,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:00,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:53:00,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:00,578 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 [2025-02-06 09:53:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:53:00,583 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:00,583 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:00,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329515228] [2025-02-06 09:53:00,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329515228] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:00,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:00,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:53:00,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191918090] [2025-02-06 09:53:00,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:00,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:53:00,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:00,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:53:00,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-06 09:53:00,610 INFO L87 Difference]: Start difference. First operand has 195 states, 188 states have (on average 1.6542553191489362) internal successors, (311), 190 states have internal predecessors, (311), 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 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:04,823 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 [] [2025-02-06 09:53:05,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:05,257 INFO L93 Difference]: Finished difference Result 290 states and 379 transitions. [2025-02-06 09:53:05,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:53:05,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2025-02-06 09:53:05,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:05,273 INFO L225 Difference]: With dead ends: 290 [2025-02-06 09:53:05,273 INFO L226 Difference]: Without dead ends: 287 [2025-02-06 09:53:05,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-06 09:53:05,276 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 123 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 380 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2025-02-06 09:53:05,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 475 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 380 Unchecked, 4.6s Time] [2025-02-06 09:53:05,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2025-02-06 09:53:05,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 192. [2025-02-06 09:53:05,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 186 states have (on average 1.3064516129032258) internal successors, (243), 187 states have internal predecessors, (243), 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) [2025-02-06 09:53:05,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 249 transitions. [2025-02-06 09:53:05,324 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 249 transitions. Word has length 4 [2025-02-06 09:53:05,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:05,324 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 249 transitions. [2025-02-06 09:53:05,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:05,324 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 249 transitions. [2025-02-06 09:53:05,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-06 09:53:05,327 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:05,327 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:53:05,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 09:53:05,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:05,528 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:05,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:05,529 INFO L85 PathProgramCache]: Analyzing trace with hash -762937996, now seen corresponding path program 1 times [2025-02-06 09:53:05,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:05,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [320227949] [2025-02-06 09:53:05,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:05,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:05,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:05,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:05,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 09:53:05,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 09:53:05,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 09:53:05,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:05,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:05,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:53:05,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:05,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:53:05,808 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:05,808 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:05,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320227949] [2025-02-06 09:53:05,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320227949] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:05,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:05,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:53:05,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672442149] [2025-02-06 09:53:05,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:05,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:53:05,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:05,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:53:05,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:53:05,811 INFO L87 Difference]: Start difference. First operand 192 states and 249 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:06,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:06,494 INFO L93 Difference]: Finished difference Result 311 states and 403 transitions. [2025-02-06 09:53:06,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:53:06,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2025-02-06 09:53:06,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:06,497 INFO L225 Difference]: With dead ends: 311 [2025-02-06 09:53:06,497 INFO L226 Difference]: Without dead ends: 311 [2025-02-06 09:53:06,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:53:06,497 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 145 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-06 09:53:06,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 459 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-06 09:53:06,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2025-02-06 09:53:06,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 279. [2025-02-06 09:53:06,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 273 states have (on average 1.3076923076923077) internal successors, (357), 274 states have internal predecessors, (357), 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) [2025-02-06 09:53:06,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 363 transitions. [2025-02-06 09:53:06,525 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 363 transitions. Word has length 13 [2025-02-06 09:53:06,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:06,525 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 363 transitions. [2025-02-06 09:53:06,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:06,525 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 363 transitions. [2025-02-06 09:53:06,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-06 09:53:06,526 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:06,526 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:53:06,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 09:53:06,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:06,727 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:06,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:06,727 INFO L85 PathProgramCache]: Analyzing trace with hash -762908205, now seen corresponding path program 1 times [2025-02-06 09:53:06,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:06,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [615467460] [2025-02-06 09:53:06,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:06,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:06,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:06,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:06,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 09:53:06,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 09:53:06,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 09:53:06,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:06,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:06,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:53:06,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:07,008 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 [2025-02-06 09:53:07,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:53:07,009 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:07,010 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:07,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615467460] [2025-02-06 09:53:07,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615467460] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:07,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:07,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:53:07,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128889697] [2025-02-06 09:53:07,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:07,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:53:07,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:07,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:53:07,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-06 09:53:07,011 INFO L87 Difference]: Start difference. First operand 279 states and 363 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:11,170 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 [] [2025-02-06 09:53:11,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:11,627 INFO L93 Difference]: Finished difference Result 355 states and 460 transitions. [2025-02-06 09:53:11,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:53:11,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2025-02-06 09:53:11,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:11,635 INFO L225 Difference]: With dead ends: 355 [2025-02-06 09:53:11,635 INFO L226 Difference]: Without dead ends: 354 [2025-02-06 09:53:11,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-06 09:53:11,636 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 89 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 349 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2025-02-06 09:53:11,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 472 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 349 Unchecked, 4.6s Time] [2025-02-06 09:53:11,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2025-02-06 09:53:11,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 327. [2025-02-06 09:53:11,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 321 states have (on average 1.3052959501557633) internal successors, (419), 322 states have internal predecessors, (419), 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) [2025-02-06 09:53:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 425 transitions. [2025-02-06 09:53:11,655 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 425 transitions. Word has length 13 [2025-02-06 09:53:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:11,655 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 425 transitions. [2025-02-06 09:53:11,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:11,656 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 425 transitions. [2025-02-06 09:53:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-06 09:53:11,656 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:11,656 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] [2025-02-06 09:53:11,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 09:53:11,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:11,861 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:11,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:11,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1142375587, now seen corresponding path program 1 times [2025-02-06 09:53:11,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:11,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1957333858] [2025-02-06 09:53:11,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:11,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:11,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:11,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:11,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 09:53:11,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 09:53:12,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 09:53:12,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:12,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:12,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 09:53:12,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:12,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:53:12,167 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:12,167 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:12,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957333858] [2025-02-06 09:53:12,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957333858] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:12,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:12,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:53:12,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204199725] [2025-02-06 09:53:12,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:12,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:53:12,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:12,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:53:12,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:53:12,169 INFO L87 Difference]: Start difference. First operand 327 states and 425 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:16,407 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 [] [2025-02-06 09:53:18,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:18,445 INFO L93 Difference]: Finished difference Result 361 states and 466 transitions. [2025-02-06 09:53:18,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:53:18,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2025-02-06 09:53:18,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:18,449 INFO L225 Difference]: With dead ends: 361 [2025-02-06 09:53:18,450 INFO L226 Difference]: Without dead ends: 357 [2025-02-06 09:53:18,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:53:18,450 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 147 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 724 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 [2025-02-06 09:53:18,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 724 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2025-02-06 09:53:18,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2025-02-06 09:53:18,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 325. [2025-02-06 09:53:18,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 319 states have (on average 1.3040752351097178) internal successors, (416), 320 states have internal predecessors, (416), 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) [2025-02-06 09:53:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 422 transitions. [2025-02-06 09:53:18,460 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 422 transitions. Word has length 22 [2025-02-06 09:53:18,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:18,460 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 422 transitions. [2025-02-06 09:53:18,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 422 transitions. [2025-02-06 09:53:18,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-02-06 09:53:18,461 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:18,461 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:53:18,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 09:53:18,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:18,662 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:18,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:18,662 INFO L85 PathProgramCache]: Analyzing trace with hash 2105458726, now seen corresponding path program 1 times [2025-02-06 09:53:18,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:18,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682432580] [2025-02-06 09:53:18,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:18,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:18,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:18,664 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:18,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 09:53:18,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-06 09:53:18,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-06 09:53:18,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:18,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:18,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:53:18,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:18,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:53:18,892 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:18,892 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:18,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682432580] [2025-02-06 09:53:18,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682432580] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:18,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:18,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:53:18,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273328549] [2025-02-06 09:53:18,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:18,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:53:18,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:18,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:53:18,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:53:18,894 INFO L87 Difference]: Start difference. First operand 325 states and 422 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:19,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:19,076 INFO L93 Difference]: Finished difference Result 385 states and 482 transitions. [2025-02-06 09:53:19,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:53:19,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2025-02-06 09:53:19,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:19,079 INFO L225 Difference]: With dead ends: 385 [2025-02-06 09:53:19,079 INFO L226 Difference]: Without dead ends: 385 [2025-02-06 09:53:19,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:53:19,081 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 8 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 09:53:19,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 443 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 09:53:19,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2025-02-06 09:53:19,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2025-02-06 09:53:19,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 379 states have (on average 1.2559366754617414) internal successors, (476), 380 states have internal predecessors, (476), 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) [2025-02-06 09:53:19,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 482 transitions. [2025-02-06 09:53:19,095 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 482 transitions. Word has length 48 [2025-02-06 09:53:19,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:19,095 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 482 transitions. [2025-02-06 09:53:19,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:19,095 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 482 transitions. [2025-02-06 09:53:19,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-02-06 09:53:19,098 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:19,098 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:53:19,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 09:53:19,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:19,302 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:19,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:19,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1934772025, now seen corresponding path program 1 times [2025-02-06 09:53:19,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:19,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797163237] [2025-02-06 09:53:19,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:19,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:19,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:19,305 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:19,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 09:53:19,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-06 09:53:19,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-06 09:53:19,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:19,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:19,486 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:53:19,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:19,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:53:19,528 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:19,531 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:19,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797163237] [2025-02-06 09:53:19,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797163237] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:19,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:19,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:53:19,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868454075] [2025-02-06 09:53:19,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:19,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:53:19,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:19,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:53:19,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:53:19,533 INFO L87 Difference]: Start difference. First operand 385 states and 482 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:19,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:19,667 INFO L93 Difference]: Finished difference Result 334 states and 398 transitions. [2025-02-06 09:53:19,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:53:19,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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 48 [2025-02-06 09:53:19,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:19,669 INFO L225 Difference]: With dead ends: 334 [2025-02-06 09:53:19,669 INFO L226 Difference]: Without dead ends: 334 [2025-02-06 09:53:19,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:53:19,670 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 32 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 637 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 [2025-02-06 09:53:19,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 637 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:53:19,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2025-02-06 09:53:19,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2025-02-06 09:53:19,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 328 states have (on average 1.1951219512195121) internal successors, (392), 329 states have internal predecessors, (392), 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) [2025-02-06 09:53:19,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 398 transitions. [2025-02-06 09:53:19,678 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 398 transitions. Word has length 48 [2025-02-06 09:53:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:19,678 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 398 transitions. [2025-02-06 09:53:19,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 398 transitions. [2025-02-06 09:53:19,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-02-06 09:53:19,679 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:19,679 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:53:19,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 09:53:19,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:19,880 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:19,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:19,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1248490976, now seen corresponding path program 1 times [2025-02-06 09:53:19,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:19,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1505104935] [2025-02-06 09:53:19,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:19,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:19,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:19,883 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:19,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 09:53:19,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-06 09:53:20,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-06 09:53:20,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:20,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:20,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 09:53:20,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:20,060 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:53:20,061 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:53:20,061 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:53:20,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 09:53:20,190 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:53:20,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 09:53:20,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:53:20,254 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:20,255 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:20,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505104935] [2025-02-06 09:53:20,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505104935] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:20,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:20,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:53:20,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227145436] [2025-02-06 09:53:20,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:20,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 09:53:20,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:20,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 09:53:20,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:53:20,257 INFO L87 Difference]: Start difference. First operand 334 states and 398 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:20,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:20,865 INFO L93 Difference]: Finished difference Result 335 states and 409 transitions. [2025-02-06 09:53:20,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:53:20,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 48 [2025-02-06 09:53:20,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:20,868 INFO L225 Difference]: With dead ends: 335 [2025-02-06 09:53:20,868 INFO L226 Difference]: Without dead ends: 332 [2025-02-06 09:53:20,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-06 09:53:20,868 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 106 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 976 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 [2025-02-06 09:53:20,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 976 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 09:53:20,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2025-02-06 09:53:20,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 286. [2025-02-06 09:53:20,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 280 states have (on average 1.2178571428571427) internal successors, (341), 281 states have internal predecessors, (341), 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) [2025-02-06 09:53:20,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 347 transitions. [2025-02-06 09:53:20,876 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 347 transitions. Word has length 48 [2025-02-06 09:53:20,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:20,877 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 347 transitions. [2025-02-06 09:53:20,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:53:20,877 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 347 transitions. [2025-02-06 09:53:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-06 09:53:20,879 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:20,879 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] [2025-02-06 09:53:20,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 09:53:21,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:21,080 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:21,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:21,081 INFO L85 PathProgramCache]: Analyzing trace with hash -492075228, now seen corresponding path program 1 times [2025-02-06 09:53:21,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:21,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588109110] [2025-02-06 09:53:21,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:21,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:21,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:21,085 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:21,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 09:53:21,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-06 09:53:21,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-06 09:53:21,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:21,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:21,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:53:21,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:21,510 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:53:21,510 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:21,510 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:21,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588109110] [2025-02-06 09:53:21,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588109110] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:21,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:21,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:53:21,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325620597] [2025-02-06 09:53:21,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:21,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:53:21,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:21,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:53:21,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:53:21,512 INFO L87 Difference]: Start difference. First operand 286 states and 347 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-02-06 09:53:21,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:21,595 INFO L93 Difference]: Finished difference Result 326 states and 387 transitions. [2025-02-06 09:53:21,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:53:21,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 83 [2025-02-06 09:53:21,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:21,596 INFO L225 Difference]: With dead ends: 326 [2025-02-06 09:53:21,597 INFO L226 Difference]: Without dead ends: 326 [2025-02-06 09:53:21,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:53:21,597 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 8 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 421 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 [2025-02-06 09:53:21,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 421 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:53:21,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2025-02-06 09:53:21,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2025-02-06 09:53:21,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 320 states have (on average 1.190625) internal successors, (381), 321 states have internal predecessors, (381), 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) [2025-02-06 09:53:21,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 387 transitions. [2025-02-06 09:53:21,606 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 387 transitions. Word has length 83 [2025-02-06 09:53:21,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:21,606 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 387 transitions. [2025-02-06 09:53:21,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-02-06 09:53:21,607 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 387 transitions. [2025-02-06 09:53:21,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-06 09:53:21,610 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:21,610 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] [2025-02-06 09:53:21,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 09:53:21,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:21,811 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:21,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:21,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1682604869, now seen corresponding path program 1 times [2025-02-06 09:53:21,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:21,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455589813] [2025-02-06 09:53:21,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:21,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:21,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:21,815 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:21,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 09:53:22,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-06 09:53:22,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-06 09:53:22,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:22,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:22,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:53:22,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:53:22,433 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:22,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:22,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455589813] [2025-02-06 09:53:22,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455589813] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:22,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:22,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:53:22,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116878449] [2025-02-06 09:53:22,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:22,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:53:22,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:22,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:53:22,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:53:22,434 INFO L87 Difference]: Start difference. First operand 326 states and 387 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2025-02-06 09:53:26,768 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 [] [2025-02-06 09:53:30,774 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 [] [2025-02-06 09:53:32,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:32,686 INFO L93 Difference]: Finished difference Result 344 states and 420 transitions. [2025-02-06 09:53:32,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:53:32,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 83 [2025-02-06 09:53:32,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:32,691 INFO L225 Difference]: With dead ends: 344 [2025-02-06 09:53:32,691 INFO L226 Difference]: Without dead ends: 344 [2025-02-06 09:53:32,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:53:32,691 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 410 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2025-02-06 09:53:32,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 399 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2025-02-06 09:53:32,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2025-02-06 09:53:32,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 276. [2025-02-06 09:53:32,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 270 states have (on average 1.2037037037037037) internal successors, (325), 271 states have internal predecessors, (325), 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) [2025-02-06 09:53:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 331 transitions. [2025-02-06 09:53:32,699 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 331 transitions. Word has length 83 [2025-02-06 09:53:32,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:32,700 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 331 transitions. [2025-02-06 09:53:32,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2025-02-06 09:53:32,700 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 331 transitions. [2025-02-06 09:53:32,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-02-06 09:53:32,701 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:32,701 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, 1] [2025-02-06 09:53:32,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 09:53:32,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:32,902 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:32,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:32,902 INFO L85 PathProgramCache]: Analyzing trace with hash -682841557, now seen corresponding path program 1 times [2025-02-06 09:53:32,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:32,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468386923] [2025-02-06 09:53:32,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:32,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:32,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:32,905 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:32,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 09:53:33,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-02-06 09:53:33,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-02-06 09:53:33,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:33,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:33,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:53:33,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:33,348 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 09:53:33,348 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:33,348 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:33,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468386923] [2025-02-06 09:53:33,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468386923] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:33,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:33,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:53:33,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299936177] [2025-02-06 09:53:33,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:33,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:53:33,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:33,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:53:33,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:53:33,350 INFO L87 Difference]: Start difference. First operand 276 states and 331 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 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) [2025-02-06 09:53:33,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:33,460 INFO L93 Difference]: Finished difference Result 242 states and 275 transitions. [2025-02-06 09:53:33,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:53:33,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 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 92 [2025-02-06 09:53:33,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:33,462 INFO L225 Difference]: With dead ends: 242 [2025-02-06 09:53:33,462 INFO L226 Difference]: Without dead ends: 242 [2025-02-06 09:53:33,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:53:33,462 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 32 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 598 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 [2025-02-06 09:53:33,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 598 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:53:33,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2025-02-06 09:53:33,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2025-02-06 09:53:33,467 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) [2025-02-06 09:53:33,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 275 transitions. [2025-02-06 09:53:33,468 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 275 transitions. Word has length 92 [2025-02-06 09:53:33,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:33,468 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 275 transitions. [2025-02-06 09:53:33,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 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) [2025-02-06 09:53:33,468 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 275 transitions. [2025-02-06 09:53:33,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-02-06 09:53:33,469 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:33,469 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, 1] [2025-02-06 09:53:33,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-06 09:53:33,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:33,673 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:33,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:33,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1896565390, now seen corresponding path program 1 times [2025-02-06 09:53:33,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:33,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737628068] [2025-02-06 09:53:33,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:33,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:33,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:33,676 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:33,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 09:53:33,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-02-06 09:53:34,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-02-06 09:53:34,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:34,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:34,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 09:53:34,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:34,147 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-06 09:53:34,148 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:34,148 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:34,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737628068] [2025-02-06 09:53:34,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737628068] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:34,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:34,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:53:34,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065646669] [2025-02-06 09:53:34,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:34,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:53:34,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:34,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:53:34,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:53:34,150 INFO L87 Difference]: Start difference. First operand 242 states and 275 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) [2025-02-06 09:53:38,433 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 [] [2025-02-06 09:53:41,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:53:43,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:43,103 INFO L93 Difference]: Finished difference Result 244 states and 277 transitions. [2025-02-06 09:53:43,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:53:43,105 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 92 [2025-02-06 09:53:43,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:43,107 INFO L225 Difference]: With dead ends: 244 [2025-02-06 09:53:43,107 INFO L226 Difference]: Without dead ends: 244 [2025-02-06 09:53:43,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:53:43,107 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 201 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2025-02-06 09:53:43,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 393 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2025-02-06 09:53:43,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-02-06 09:53:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 243. [2025-02-06 09:53:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 237 states have (on average 1.139240506329114) internal successors, (270), 238 states have internal predecessors, (270), 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) [2025-02-06 09:53:43,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 276 transitions. [2025-02-06 09:53:43,114 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 276 transitions. Word has length 92 [2025-02-06 09:53:43,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:43,115 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 276 transitions. [2025-02-06 09:53:43,115 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) [2025-02-06 09:53:43,115 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 276 transitions. [2025-02-06 09:53:43,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-02-06 09:53:43,116 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:43,116 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, 1] [2025-02-06 09:53:43,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 09:53:43,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:43,320 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:43,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:43,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1896535599, now seen corresponding path program 1 times [2025-02-06 09:53:43,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:43,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [318459804] [2025-02-06 09:53:43,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:43,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:43,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:43,323 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:43,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 09:53:43,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-02-06 09:53:43,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-02-06 09:53:43,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:43,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:43,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:53:43,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:43,740 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 09:53:43,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:43,740 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:43,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318459804] [2025-02-06 09:53:43,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318459804] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:43,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:43,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:53:43,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137452910] [2025-02-06 09:53:43,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:43,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:53:43,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:43,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:53:43,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:53:43,743 INFO L87 Difference]: Start difference. First operand 243 states and 276 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2025-02-06 09:53:43,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:43,784 INFO L93 Difference]: Finished difference Result 246 states and 280 transitions. [2025-02-06 09:53:43,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:53:43,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 92 [2025-02-06 09:53:43,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:43,786 INFO L225 Difference]: With dead ends: 246 [2025-02-06 09:53:43,786 INFO L226 Difference]: Without dead ends: 246 [2025-02-06 09:53:43,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:53:43,787 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 0 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 662 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 [2025-02-06 09:53:43,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 662 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 09:53:43,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2025-02-06 09:53:43,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2025-02-06 09:53:43,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 239 states have (on average 1.1422594142259415) internal successors, (273), 241 states have internal predecessors, (273), 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) [2025-02-06 09:53:43,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 280 transitions. [2025-02-06 09:53:43,793 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 280 transitions. Word has length 92 [2025-02-06 09:53:43,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:43,794 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 280 transitions. [2025-02-06 09:53:43,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2025-02-06 09:53:43,794 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 280 transitions. [2025-02-06 09:53:43,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-02-06 09:53:43,795 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:43,795 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, 1] [2025-02-06 09:53:43,811 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 [2025-02-06 09:53:44,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:44,000 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:44,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:44,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1205370197, now seen corresponding path program 1 times [2025-02-06 09:53:44,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:44,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784836025] [2025-02-06 09:53:44,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:44,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:44,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:44,003 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:44,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 09:53:44,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-06 09:53:44,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-06 09:53:44,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:44,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:44,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:53:44,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:44,437 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:53:44,438 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:53:44,550 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:53:44,550 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:44,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784836025] [2025-02-06 09:53:44,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784836025] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:53:44,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:53:44,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-06 09:53:44,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132652023] [2025-02-06 09:53:44,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:53:44,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 09:53:44,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:44,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 09:53:44,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 09:53:44,552 INFO L87 Difference]: Start difference. First operand 246 states and 280 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 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) [2025-02-06 09:53:44,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:44,761 INFO L93 Difference]: Finished difference Result 257 states and 297 transitions. [2025-02-06 09:53:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 09:53:44,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2025-02-06 09:53:44,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:44,764 INFO L225 Difference]: With dead ends: 257 [2025-02-06 09:53:44,764 INFO L226 Difference]: Without dead ends: 257 [2025-02-06 09:53:44,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-06 09:53:44,765 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 4 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:53:44,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 880 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:53:44,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2025-02-06 09:53:44,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255. [2025-02-06 09:53:44,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 247 states have (on average 1.1619433198380567) internal successors, (287), 249 states have internal predecessors, (287), 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) [2025-02-06 09:53:44,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 295 transitions. [2025-02-06 09:53:44,772 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 295 transitions. Word has length 94 [2025-02-06 09:53:44,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:44,772 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 295 transitions. [2025-02-06 09:53:44,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 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) [2025-02-06 09:53:44,772 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 295 transitions. [2025-02-06 09:53:44,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-02-06 09:53:44,773 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:44,774 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, 1] [2025-02-06 09:53:44,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-06 09:53:44,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:44,975 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:44,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:44,975 INFO L85 PathProgramCache]: Analyzing trace with hash -375894767, now seen corresponding path program 2 times [2025-02-06 09:53:44,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:44,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576804178] [2025-02-06 09:53:44,976 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:53:44,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:44,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:44,979 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:44,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-06 09:53:45,277 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 98 statements into 2 equivalence classes. [2025-02-06 09:53:45,481 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 98 of 98 statements. [2025-02-06 09:53:45,481 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:53:45,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:45,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:53:45,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:45,621 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 09:53:45,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:53:45,812 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 09:53:45,813 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:45,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576804178] [2025-02-06 09:53:45,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576804178] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:53:45,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:53:45,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-06 09:53:45,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056208256] [2025-02-06 09:53:45,813 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:53:45,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:53:45,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:45,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:53:45,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:53:45,814 INFO L87 Difference]: Start difference. First operand 255 states and 295 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 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) [2025-02-06 09:53:46,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:46,257 INFO L93 Difference]: Finished difference Result 263 states and 305 transitions. [2025-02-06 09:53:46,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:53:46,257 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 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 98 [2025-02-06 09:53:46,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:46,259 INFO L225 Difference]: With dead ends: 263 [2025-02-06 09:53:46,259 INFO L226 Difference]: Without dead ends: 261 [2025-02-06 09:53:46,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-06 09:53:46,260 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 5 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 09:53:46,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1104 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 09:53:46,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2025-02-06 09:53:46,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 259. [2025-02-06 09:53:46,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 251 states have (on average 1.1673306772908367) internal successors, (293), 253 states have internal predecessors, (293), 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) [2025-02-06 09:53:46,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 300 transitions. [2025-02-06 09:53:46,268 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 300 transitions. Word has length 98 [2025-02-06 09:53:46,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:46,268 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 300 transitions. [2025-02-06 09:53:46,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 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) [2025-02-06 09:53:46,268 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 300 transitions. [2025-02-06 09:53:46,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-02-06 09:53:46,269 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:46,269 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] [2025-02-06 09:53:46,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-06 09:53:46,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:46,471 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:46,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:46,472 INFO L85 PathProgramCache]: Analyzing trace with hash -636567919, now seen corresponding path program 3 times [2025-02-06 09:53:46,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:46,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398225761] [2025-02-06 09:53:46,472 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:53:46,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:46,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:46,474 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:46,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-06 09:53:46,777 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 102 statements into 6 equivalence classes. [2025-02-06 09:53:46,907 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 85 of 102 statements. [2025-02-06 09:53:46,907 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 09:53:46,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:46,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 09:53:46,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:47,679 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:53:47,680 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:53:47,680 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:53:47,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 09:53:47,768 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:53:47,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 09:53:47,802 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-06 09:53:47,802 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:53:47,802 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:47,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398225761] [2025-02-06 09:53:47,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398225761] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:53:47,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:53:47,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 09:53:47,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600755457] [2025-02-06 09:53:47,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:53:47,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:53:47,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:47,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:53:47,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:53:47,803 INFO L87 Difference]: Start difference. First operand 259 states and 300 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2025-02-06 09:53:48,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:48,165 INFO L93 Difference]: Finished difference Result 326 states and 374 transitions. [2025-02-06 09:53:48,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:53:48,166 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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 102 [2025-02-06 09:53:48,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:48,169 INFO L225 Difference]: With dead ends: 326 [2025-02-06 09:53:48,169 INFO L226 Difference]: Without dead ends: 326 [2025-02-06 09:53:48,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2025-02-06 09:53:48,170 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 248 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 09:53:48,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 630 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 09:53:48,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2025-02-06 09:53:48,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 261. [2025-02-06 09:53:48,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 253 states have (on average 1.1660079051383399) internal successors, (295), 255 states have internal predecessors, (295), 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) [2025-02-06 09:53:48,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 302 transitions. [2025-02-06 09:53:48,179 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 302 transitions. Word has length 102 [2025-02-06 09:53:48,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:48,180 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 302 transitions. [2025-02-06 09:53:48,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2025-02-06 09:53:48,180 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 302 transitions. [2025-02-06 09:53:48,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-02-06 09:53:48,182 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:48,183 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, 1] [2025-02-06 09:53:48,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-06 09:53:48,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:48,383 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:48,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:48,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2066326178, now seen corresponding path program 1 times [2025-02-06 09:53:48,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:48,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1691602402] [2025-02-06 09:53:48,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:53:48,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:48,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:48,386 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:48,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-06 09:53:48,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-02-06 09:53:48,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-02-06 09:53:48,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:53:48,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:48,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:53:48,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 09:53:48,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:53:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 09:53:49,162 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:49,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691602402] [2025-02-06 09:53:49,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691602402] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:53:49,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:53:49,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-02-06 09:53:49,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162357643] [2025-02-06 09:53:49,163 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:53:49,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 09:53:49,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:49,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 09:53:49,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-02-06 09:53:49,165 INFO L87 Difference]: Start difference. First operand 261 states and 302 transitions. Second operand has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 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) [2025-02-06 09:53:49,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:49,516 INFO L93 Difference]: Finished difference Result 273 states and 318 transitions. [2025-02-06 09:53:49,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 09:53:49,516 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 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 136 [2025-02-06 09:53:49,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:49,517 INFO L225 Difference]: With dead ends: 273 [2025-02-06 09:53:49,518 INFO L226 Difference]: Without dead ends: 269 [2025-02-06 09:53:49,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2025-02-06 09:53:49,518 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 7 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1757 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 09:53:49,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1757 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 09:53:49,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2025-02-06 09:53:49,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2025-02-06 09:53:49,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 259 states have (on average 1.1776061776061777) internal successors, (305), 261 states have internal predecessors, (305), 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) [2025-02-06 09:53:49,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 312 transitions. [2025-02-06 09:53:49,524 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 312 transitions. Word has length 136 [2025-02-06 09:53:49,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:49,524 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 312 transitions. [2025-02-06 09:53:49,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 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) [2025-02-06 09:53:49,524 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 312 transitions. [2025-02-06 09:53:49,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-02-06 09:53:49,525 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:49,525 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, 1] [2025-02-06 09:53:49,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-06 09:53:49,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:49,726 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:49,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:49,727 INFO L85 PathProgramCache]: Analyzing trace with hash -742564254, now seen corresponding path program 2 times [2025-02-06 09:53:49,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:49,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1734133104] [2025-02-06 09:53:49,727 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:53:49,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:49,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:49,729 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:49,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-06 09:53:50,041 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 142 statements into 2 equivalence classes. [2025-02-06 09:53:50,264 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 142 of 142 statements. [2025-02-06 09:53:50,264 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:53:50,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:53:50,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 09:53:50,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:53:50,450 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 82 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-02-06 09:53:50,450 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:53:50,832 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-02-06 09:53:50,832 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:53:50,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734133104] [2025-02-06 09:53:50,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734133104] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:53:50,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:53:50,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2025-02-06 09:53:50,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899247586] [2025-02-06 09:53:50,832 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:53:50,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 09:53:50,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:53:50,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 09:53:50,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2025-02-06 09:53:50,834 INFO L87 Difference]: Start difference. First operand 267 states and 312 transitions. Second operand has 18 states, 18 states have (on average 7.888888888888889) internal successors, (142), 18 states have internal predecessors, (142), 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) [2025-02-06 09:53:51,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:53:51,788 INFO L93 Difference]: Finished difference Result 281 states and 331 transitions. [2025-02-06 09:53:51,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-06 09:53:51,788 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.888888888888889) internal successors, (142), 18 states have internal predecessors, (142), 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 142 [2025-02-06 09:53:51,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:53:51,789 INFO L225 Difference]: With dead ends: 281 [2025-02-06 09:53:51,790 INFO L226 Difference]: Without dead ends: 275 [2025-02-06 09:53:51,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=324, Invalid=606, Unknown=0, NotChecked=0, Total=930 [2025-02-06 09:53:51,790 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 10 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 09:53:51,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1772 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 09:53:51,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2025-02-06 09:53:51,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2025-02-06 09:53:51,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 267 states have (on average 1.1685393258426966) internal successors, (312), 269 states have internal predecessors, (312), 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) [2025-02-06 09:53:51,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 319 transitions. [2025-02-06 09:53:51,796 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 319 transitions. Word has length 142 [2025-02-06 09:53:51,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:53:51,796 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 319 transitions. [2025-02-06 09:53:51,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.888888888888889) internal successors, (142), 18 states have internal predecessors, (142), 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) [2025-02-06 09:53:51,796 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 319 transitions. [2025-02-06 09:53:51,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-02-06 09:53:51,798 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:53:51,798 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, 1] [2025-02-06 09:53:51,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-02-06 09:53:51,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:51,999 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:53:51,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:53:51,999 INFO L85 PathProgramCache]: Analyzing trace with hash 531431778, now seen corresponding path program 3 times [2025-02-06 09:53:52,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:53:52,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634800556] [2025-02-06 09:53:52,000 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:53:52,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:53:52,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:53:52,002 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:53:52,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-06 09:53:52,369 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 150 statements into 10 equivalence classes.