./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 6c366d24ef9ea71cc6362f44963cc0aaadef105bf25ae7c56112d839540c58b5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:25:12,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:25:12,465 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-08 22:25:12,470 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:25:12,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:25:12,489 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:25:12,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:25:12,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:25:12,491 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:25:12,491 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:25:12,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:25:12,492 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:25:12,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:25:12,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:25:12,492 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:25:12,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:25:12,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:25:12,493 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:25:12,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:25:12,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:25:12,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:25:12,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:25:12,493 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:25:12,493 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:25:12,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:25:12,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:25:12,493 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:25:12,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:25:12,494 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:25:12,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:25:12,494 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:25:12,494 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:25:12,494 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:25:12,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:25:12,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:25:12,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:25:12,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:25:12,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:25:12,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:25:12,495 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:25:12,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:25:12,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:25:12,495 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:25:12,495 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:25:12,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:25:12,495 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/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 -> 6c366d24ef9ea71cc6362f44963cc0aaadef105bf25ae7c56112d839540c58b5 [2025-03-08 22:25:12,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:25:12,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:25:12,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:25:12,729 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:25:12,730 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:25:12,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i [2025-03-08 22:25:13,863 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aad58bcc/399b0a75c35342e4a20ccdbfdcb3f9cd/FLAG836db48da [2025-03-08 22:25:14,176 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:25:14,177 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i [2025-03-08 22:25:14,187 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aad58bcc/399b0a75c35342e4a20ccdbfdcb3f9cd/FLAG836db48da [2025-03-08 22:25:14,444 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aad58bcc/399b0a75c35342e4a20ccdbfdcb3f9cd [2025-03-08 22:25:14,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:25:14,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:25:14,448 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:25:14,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:25:14,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:25:14,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:25:14" (1/1) ... [2025-03-08 22:25:14,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1925ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:14, skipping insertion in model container [2025-03-08 22:25:14,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:25:14" (1/1) ... [2025-03-08 22:25:14,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:25:14,719 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,745 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,747 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,749 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,754 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,772 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,773 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,775 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,778 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,784 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,784 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,786 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,787 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,787 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,788 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,792 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,793 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,793 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,794 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,797 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:14,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:25:14,820 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) [2025-03-08 22:25:14,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6e1aa789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:14, skipping insertion in model container [2025-03-08 22:25:14,820 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:25:14,821 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-08 22:25:14,823 INFO L158 Benchmark]: Toolchain (without parser) took 375.30ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 81.0MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 22:25:14,823 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:25:14,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.79ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 81.0MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 22:25:14,824 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.79ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 81.0MB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 769]: 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/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 6c366d24ef9ea71cc6362f44963cc0aaadef105bf25ae7c56112d839540c58b5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:25:16,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:25:16,502 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-08 22:25:16,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:25:16,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:25:16,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:25:16,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:25:16,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:25:16,531 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:25:16,531 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:25:16,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:25:16,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:25:16,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:25:16,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:25:16,531 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:25:16,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:25:16,532 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:25:16,535 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:25:16,535 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:25:16,535 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:25:16,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:25:16,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:25:16,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:25:16,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:25:16,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:25:16,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:25:16,536 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 22:25:16,536 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 22:25:16,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:25:16,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:25:16,536 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:25:16,536 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:25:16,536 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/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 -> 6c366d24ef9ea71cc6362f44963cc0aaadef105bf25ae7c56112d839540c58b5 [2025-03-08 22:25:16,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:25:16,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:25:16,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:25:16,751 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:25:16,753 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:25:16,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i [2025-03-08 22:25:17,915 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cf02d58b/dab9de514dc947819788ebca8ec97796/FLAG669ceaf35 [2025-03-08 22:25:18,204 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:25:18,205 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-3.i [2025-03-08 22:25:18,223 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cf02d58b/dab9de514dc947819788ebca8ec97796/FLAG669ceaf35 [2025-03-08 22:25:18,478 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cf02d58b/dab9de514dc947819788ebca8ec97796 [2025-03-08 22:25:18,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:25:18,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:25:18,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:25:18,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:25:18,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:25:18,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:25:18" (1/1) ... [2025-03-08 22:25:18,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a02269b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:18, skipping insertion in model container [2025-03-08 22:25:18,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:25:18" (1/1) ... [2025-03-08 22:25:18,512 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:25:18,807 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,841 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,844 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,846 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,852 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,871 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,873 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,875 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,879 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,888 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,889 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,891 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,892 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,892 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,893 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,896 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,896 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,897 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,897 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,902 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:25:18,921 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-08 22:25:18,930 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:25:18,956 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,965 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,977 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,979 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:18,983 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,007 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,008 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,010 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,012 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,020 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,021 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,022 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,022 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,023 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,024 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,027 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,028 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,028 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,028 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,030 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:25:19,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:25:19,040 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:25:19,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:25:19,117 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:25:19,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19 WrapperNode [2025-03-08 22:25:19,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:25:19,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:25:19,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:25:19,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:25:19,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (1/1) ... [2025-03-08 22:25:19,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (1/1) ... [2025-03-08 22:25:19,218 INFO L138 Inliner]: procedures = 179, calls = 435, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1414 [2025-03-08 22:25:19,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:25:19,219 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:25:19,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:25:19,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:25:19,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (1/1) ... [2025-03-08 22:25:19,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (1/1) ... [2025-03-08 22:25:19,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (1/1) ... [2025-03-08 22:25:19,331 INFO L175 MemorySlicer]: Split 403 memory accesses to 2 slices as follows [2, 401]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 98 writes are split as follows [0, 98]. [2025-03-08 22:25:19,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (1/1) ... [2025-03-08 22:25:19,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (1/1) ... [2025-03-08 22:25:19,371 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (1/1) ... [2025-03-08 22:25:19,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (1/1) ... [2025-03-08 22:25:19,375 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (1/1) ... [2025-03-08 22:25:19,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (1/1) ... [2025-03-08 22:25:19,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:25:19,382 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:25:19,383 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:25:19,383 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:25:19,383 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (1/1) ... [2025-03-08 22:25:19,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:25:19,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:25:19,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 22:25:19,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 22:25:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-08 22:25:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-08 22:25:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-08 22:25:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-08 22:25:19,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 22:25:19,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 22:25:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-08 22:25:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-08 22:25:19,439 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-08 22:25:19,439 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-08 22:25:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:25:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:25:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 22:25:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 22:25:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 22:25:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 22:25:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:25:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-08 22:25:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-08 22:25:19,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 22:25:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-08 22:25:19,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:25:19,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:25:19,610 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:25:19,611 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:25:32,127 INFO L? ?]: Removed 207 outVars from TransFormulas that were not future-live. [2025-03-08 22:25:32,128 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:25:32,141 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:25:32,143 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:25:32,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:25:32 BoogieIcfgContainer [2025-03-08 22:25:32,143 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:25:32,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:25:32,145 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:25:32,149 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:25:32,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:25:18" (1/3) ... [2025-03-08 22:25:32,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2850ddd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:25:32, skipping insertion in model container [2025-03-08 22:25:32,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:25:19" (2/3) ... [2025-03-08 22:25:32,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2850ddd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:25:32, skipping insertion in model container [2025-03-08 22:25:32,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:25:32" (3/3) ... [2025-03-08 22:25:32,152 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test4-3.i [2025-03-08 22:25:32,162 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:25:32,163 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_test4-3.i that has 4 procedures, 265 locations, 1 initial locations, 43 loop locations, and 2 error locations. [2025-03-08 22:25:32,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:25:32,207 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;@2a5f9bb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:25:32,207 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 22:25:32,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 261 states, 240 states have (on average 1.6625) internal successors, (399), 252 states have internal predecessors, (399), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-08 22:25:32,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-08 22:25:32,217 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:25:32,218 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:25:32,218 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:25:32,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:25:32,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1988493505, now seen corresponding path program 1 times [2025-03-08 22:25:32,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:25:32,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [949361407] [2025-03-08 22:25:32,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:25:32,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:25:32,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:25:32,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:25:32,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 22:25:32,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-08 22:25:32,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-08 22:25:32,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:25:32,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:25:32,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:25:32,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:25:32,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:25:32,462 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:25:32,462 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:25:32,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949361407] [2025-03-08 22:25:32,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949361407] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:25:32,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:25:32,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:25:32,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184922413] [2025-03-08 22:25:32,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:25:32,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:25:32,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:25:32,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:25:32,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:25:32,491 INFO L87 Difference]: Start difference. First operand has 261 states, 240 states have (on average 1.6625) internal successors, (399), 252 states have internal predecessors, (399), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-08 22:25:33,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:25:33,035 INFO L93 Difference]: Finished difference Result 374 states and 517 transitions. [2025-03-08 22:25:33,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:25:33,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2025-03-08 22:25:33,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:25:33,048 INFO L225 Difference]: With dead ends: 374 [2025-03-08 22:25:33,050 INFO L226 Difference]: Without dead ends: 372 [2025-03-08 22:25:33,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:25:33,054 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 140 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 22:25:33,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 668 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 22:25:33,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2025-03-08 22:25:33,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 320. [2025-03-08 22:25:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 290 states have (on average 1.3551724137931034) internal successors, (393), 311 states have internal predecessors, (393), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 8 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-08 22:25:33,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 445 transitions. [2025-03-08 22:25:33,110 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 445 transitions. Word has length 8 [2025-03-08 22:25:33,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:25:33,110 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 445 transitions. [2025-03-08 22:25:33,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-08 22:25:33,110 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 445 transitions. [2025-03-08 22:25:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-08 22:25:33,110 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:25:33,110 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:25:33,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 22:25:33,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:25:33,313 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:25:33,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:25:33,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1988463714, now seen corresponding path program 1 times [2025-03-08 22:25:33,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:25:33,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639191598] [2025-03-08 22:25:33,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:25:33,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:25:33,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:25:33,317 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:25:33,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 22:25:33,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-08 22:25:33,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-08 22:25:33,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:25:33,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:25:33,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 22:25:33,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:25:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:25:33,481 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:25:33,482 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:25:33,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639191598] [2025-03-08 22:25:33,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639191598] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:25:33,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:25:33,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:25:33,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214605619] [2025-03-08 22:25:33,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:25:33,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:25:33,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:25:33,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:25:33,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:25:33,483 INFO L87 Difference]: Start difference. First operand 320 states and 445 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-08 22:25:37,550 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 [] [2025-03-08 22:25:41,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:25:42,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:25:42,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:25:42,759 INFO L93 Difference]: Finished difference Result 370 states and 511 transitions. [2025-03-08 22:25:42,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:25:42,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2025-03-08 22:25:42,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:25:42,767 INFO L225 Difference]: With dead ends: 370 [2025-03-08 22:25:42,767 INFO L226 Difference]: Without dead ends: 369 [2025-03-08 22:25:42,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:25:42,768 INFO L435 NwaCegarLoop]: 379 mSDtfsCounter, 84 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:25:42,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 703 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2025-03-08 22:25:42,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2025-03-08 22:25:42,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 322. [2025-03-08 22:25:42,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 292 states have (on average 1.3527397260273972) internal successors, (395), 313 states have internal predecessors, (395), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 8 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-08 22:25:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 447 transitions. [2025-03-08 22:25:42,783 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 447 transitions. Word has length 8 [2025-03-08 22:25:42,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:25:42,783 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 447 transitions. [2025-03-08 22:25:42,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-08 22:25:42,784 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 447 transitions. [2025-03-08 22:25:42,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-08 22:25:42,784 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:25:42,784 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:25:42,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 22:25:42,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:25:42,985 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:25:42,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:25:42,985 INFO L85 PathProgramCache]: Analyzing trace with hash 698921973, now seen corresponding path program 1 times [2025-03-08 22:25:42,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:25:42,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1133732555] [2025-03-08 22:25:42,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:25:42,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:25:42,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:25:42,988 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:25:42,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 22:25:43,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-08 22:25:43,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-08 22:25:43,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:25:43,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:25:43,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 22:25:43,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:25:43,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:25:43,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:25:43,132 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:25:43,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133732555] [2025-03-08 22:25:43,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133732555] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:25:43,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:25:43,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:25:43,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275793930] [2025-03-08 22:25:43,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:25:43,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:25:43,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:25:43,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:25:43,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:25:43,135 INFO L87 Difference]: Start difference. First operand 322 states and 447 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:25:46,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:25:50,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:25:52,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:25:52,871 INFO L93 Difference]: Finished difference Result 380 states and 509 transitions. [2025-03-08 22:25:52,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:25:52,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-08 22:25:52,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:25:52,875 INFO L225 Difference]: With dead ends: 380 [2025-03-08 22:25:52,875 INFO L226 Difference]: Without dead ends: 380 [2025-03-08 22:25:52,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:25:52,875 INFO L435 NwaCegarLoop]: 346 mSDtfsCounter, 148 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2025-03-08 22:25:52,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 970 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2025-03-08 22:25:52,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2025-03-08 22:25:52,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2025-03-08 22:25:52,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 357 states have (on average 1.319327731092437) internal successors, (471), 368 states have internal predecessors, (471), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-08 22:25:52,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 509 transitions. [2025-03-08 22:25:52,889 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 509 transitions. Word has length 10 [2025-03-08 22:25:52,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:25:52,889 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 509 transitions. [2025-03-08 22:25:52,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:25:52,889 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 509 transitions. [2025-03-08 22:25:52,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-08 22:25:52,890 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:25:52,890 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] [2025-03-08 22:25:52,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 22:25:53,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:25:53,091 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:25:53,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:25:53,091 INFO L85 PathProgramCache]: Analyzing trace with hash 426070805, now seen corresponding path program 1 times [2025-03-08 22:25:53,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:25:53,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1865100637] [2025-03-08 22:25:53,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:25:53,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:25:53,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:25:53,094 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:25:53,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 22:25:53,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-08 22:25:53,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-08 22:25:53,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:25:53,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:25:53,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 22:25:53,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:25:53,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:25:53,320 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:25:53,320 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:25:53,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865100637] [2025-03-08 22:25:53,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865100637] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:25:53,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:25:53,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:25:53,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030792372] [2025-03-08 22:25:53,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:25:53,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:25:53,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:25:53,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:25:53,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:25:53,322 INFO L87 Difference]: Start difference. First operand 380 states and 509 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) [2025-03-08 22:25:57,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:26:02,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:26:03,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:26:03,924 INFO L93 Difference]: Finished difference Result 432 states and 577 transitions. [2025-03-08 22:26:03,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:26:03,926 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 [2025-03-08 22:26:03,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:26:03,928 INFO L225 Difference]: With dead ends: 432 [2025-03-08 22:26:03,928 INFO L226 Difference]: Without dead ends: 428 [2025-03-08 22:26:03,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:26:03,928 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 119 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2025-03-08 22:26:03,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1002 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2025-03-08 22:26:03,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2025-03-08 22:26:03,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 376. [2025-03-08 22:26:03,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 353 states have (on average 1.320113314447592) internal successors, (466), 364 states have internal predecessors, (466), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-08 22:26:03,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 504 transitions. [2025-03-08 22:26:03,945 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 504 transitions. Word has length 22 [2025-03-08 22:26:03,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:26:03,945 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 504 transitions. [2025-03-08 22:26:03,945 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) [2025-03-08 22:26:03,945 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 504 transitions. [2025-03-08 22:26:03,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-08 22:26:03,949 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:26:03,949 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:26:03,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 22:26:04,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:04,150 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:26:04,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:26:04,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1383810469, now seen corresponding path program 1 times [2025-03-08 22:26:04,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:26:04,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519947161] [2025-03-08 22:26:04,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:26:04,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:04,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:26:04,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:26:04,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 22:26:04,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 22:26:04,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 22:26:04,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:26:04,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:26:04,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:26:04,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:26:04,656 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-08 22:26:04,658 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:26:04,658 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:26:04,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519947161] [2025-03-08 22:26:04,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519947161] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:26:04,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:26:04,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:26:04,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517967237] [2025-03-08 22:26:04,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:26:04,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:26:04,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:26:04,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:26:04,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:26:04,660 INFO L87 Difference]: Start difference. First operand 376 states and 504 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 22:26:04,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:26:04,764 INFO L93 Difference]: Finished difference Result 416 states and 544 transitions. [2025-03-08 22:26:04,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:26:04,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 140 [2025-03-08 22:26:04,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:26:04,766 INFO L225 Difference]: With dead ends: 416 [2025-03-08 22:26:04,766 INFO L226 Difference]: Without dead ends: 416 [2025-03-08 22:26:04,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:26:04,767 INFO L435 NwaCegarLoop]: 329 mSDtfsCounter, 8 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 643 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 [2025-03-08 22:26:04,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 643 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:26:04,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2025-03-08 22:26:04,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2025-03-08 22:26:04,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 393 states have (on average 1.2875318066157762) internal successors, (506), 404 states have internal predecessors, (506), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-08 22:26:04,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 544 transitions. [2025-03-08 22:26:04,774 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 544 transitions. Word has length 140 [2025-03-08 22:26:04,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:26:04,777 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 544 transitions. [2025-03-08 22:26:04,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 22:26:04,777 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 544 transitions. [2025-03-08 22:26:04,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-08 22:26:04,780 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:26:04,780 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:26:04,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-08 22:26:04,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:04,981 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:26:04,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:26:04,981 INFO L85 PathProgramCache]: Analyzing trace with hash 414229446, now seen corresponding path program 1 times [2025-03-08 22:26:04,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:26:04,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1364323970] [2025-03-08 22:26:04,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:26:04,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:04,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:26:04,984 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:26:04,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 22:26:05,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 22:26:05,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 22:26:05,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:26:05,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:26:05,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 22:26:05,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:26:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:26:05,798 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:26:05,798 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:26:05,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364323970] [2025-03-08 22:26:05,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364323970] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:26:05,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:26:05,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:26:05,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019622659] [2025-03-08 22:26:05,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:26:05,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:26:05,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:26:05,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:26:05,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:26:05,799 INFO L87 Difference]: Start difference. First operand 416 states and 544 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:26:10,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:26:14,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:26:18,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:26:22,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:26:27,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:26:31,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:26:32,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:26:32,130 INFO L93 Difference]: Finished difference Result 439 states and 586 transitions. [2025-03-08 22:26:32,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:26:32,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 140 [2025-03-08 22:26:32,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:26:32,133 INFO L225 Difference]: With dead ends: 439 [2025-03-08 22:26:32,133 INFO L226 Difference]: Without dead ends: 439 [2025-03-08 22:26:32,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:26:32,134 INFO L435 NwaCegarLoop]: 418 mSDtfsCounter, 319 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:26:32,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 810 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 5 Unknown, 0 Unchecked, 26.3s Time] [2025-03-08 22:26:32,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2025-03-08 22:26:32,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 417. [2025-03-08 22:26:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 394 states have (on average 1.284263959390863) internal successors, (506), 405 states have internal predecessors, (506), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-08 22:26:32,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 544 transitions. [2025-03-08 22:26:32,148 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 544 transitions. Word has length 140 [2025-03-08 22:26:32,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:26:32,148 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 544 transitions. [2025-03-08 22:26:32,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:26:32,149 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 544 transitions. [2025-03-08 22:26:32,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-03-08 22:26:32,151 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:26:32,152 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:26:32,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-08 22:26:32,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:32,352 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:26:32,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:26:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash -976727364, now seen corresponding path program 1 times [2025-03-08 22:26:32,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:26:32,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11985742] [2025-03-08 22:26:32,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:26:32,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:32,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:26:32,356 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:26:32,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-08 22:26:32,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-08 22:26:32,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-08 22:26:32,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:26:32,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:26:32,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:26:32,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:26:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:26:32,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:26:32,896 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:26:32,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11985742] [2025-03-08 22:26:32,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11985742] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:26:32,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:26:32,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:26:32,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735747448] [2025-03-08 22:26:32,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:26:32,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:26:32,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:26:32,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:26:32,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:26:32,898 INFO L87 Difference]: Start difference. First operand 417 states and 544 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:26:33,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:26:33,055 INFO L93 Difference]: Finished difference Result 423 states and 534 transitions. [2025-03-08 22:26:33,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:26:33,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 142 [2025-03-08 22:26:33,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:26:33,058 INFO L225 Difference]: With dead ends: 423 [2025-03-08 22:26:33,058 INFO L226 Difference]: Without dead ends: 423 [2025-03-08 22:26:33,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:26:33,059 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 30 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:26:33,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 941 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:26:33,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2025-03-08 22:26:33,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2025-03-08 22:26:33,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 400 states have (on average 1.24) internal successors, (496), 411 states have internal predecessors, (496), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-08 22:26:33,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 534 transitions. [2025-03-08 22:26:33,069 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 534 transitions. Word has length 142 [2025-03-08 22:26:33,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:26:33,069 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 534 transitions. [2025-03-08 22:26:33,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-08 22:26:33,069 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 534 transitions. [2025-03-08 22:26:33,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-03-08 22:26:33,070 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:26:33,071 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:26:33,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-08 22:26:33,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:33,275 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:26:33,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:26:33,275 INFO L85 PathProgramCache]: Analyzing trace with hash -214874667, now seen corresponding path program 1 times [2025-03-08 22:26:33,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:26:33,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718546781] [2025-03-08 22:26:33,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:26:33,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:33,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:26:33,278 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:26:33,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-08 22:26:33,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-08 22:26:33,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-08 22:26:33,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:26:33,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:26:33,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:26:33,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:26:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-08 22:26:33,801 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:26:33,801 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:26:33,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718546781] [2025-03-08 22:26:33,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718546781] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:26:33,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:26:33,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:26:33,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720752522] [2025-03-08 22:26:33,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:26:33,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:26:33,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:26:33,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:26:33,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:26:33,802 INFO L87 Difference]: Start difference. First operand 423 states and 534 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 22:26:33,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:26:33,931 INFO L93 Difference]: Finished difference Result 389 states and 478 transitions. [2025-03-08 22:26:33,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:26:33,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 142 [2025-03-08 22:26:33,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:26:33,933 INFO L225 Difference]: With dead ends: 389 [2025-03-08 22:26:33,933 INFO L226 Difference]: Without dead ends: 389 [2025-03-08 22:26:33,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:26:33,934 INFO L435 NwaCegarLoop]: 306 mSDtfsCounter, 32 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 904 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 [2025-03-08 22:26:33,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 904 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:26:33,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2025-03-08 22:26:33,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2025-03-08 22:26:33,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 366 states have (on average 1.2021857923497268) internal successors, (440), 377 states have internal predecessors, (440), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-08 22:26:33,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 478 transitions. [2025-03-08 22:26:33,943 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 478 transitions. Word has length 142 [2025-03-08 22:26:33,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:26:33,943 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 478 transitions. [2025-03-08 22:26:33,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 22:26:33,944 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 478 transitions. [2025-03-08 22:26:33,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-03-08 22:26:33,945 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:26:33,945 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:26:33,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-08 22:26:34,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:34,146 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:26:34,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:26:34,147 INFO L85 PathProgramCache]: Analyzing trace with hash -666926866, now seen corresponding path program 1 times [2025-03-08 22:26:34,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:26:34,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184544753] [2025-03-08 22:26:34,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:26:34,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:34,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:26:34,149 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:26:34,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-08 22:26:34,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-08 22:26:34,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-08 22:26:34,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:26:34,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:26:34,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:26:34,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:26:34,693 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-08 22:26:34,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:26:34,694 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:26:34,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184544753] [2025-03-08 22:26:34,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184544753] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:26:34,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:26:34,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:26:34,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582085456] [2025-03-08 22:26:34,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:26:34,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:26:34,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:26:34,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:26:34,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:26:34,695 INFO L87 Difference]: Start difference. First operand 389 states and 478 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 22:26:34,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:26:34,761 INFO L93 Difference]: Finished difference Result 392 states and 484 transitions. [2025-03-08 22:26:34,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:26:34,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 142 [2025-03-08 22:26:34,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:26:34,764 INFO L225 Difference]: With dead ends: 392 [2025-03-08 22:26:34,765 INFO L226 Difference]: Without dead ends: 392 [2025-03-08 22:26:34,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:26:34,766 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 0 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:26:34,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 962 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:26:34,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2025-03-08 22:26:34,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2025-03-08 22:26:34,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 368 states have (on average 1.203804347826087) internal successors, (443), 380 states have internal predecessors, (443), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2025-03-08 22:26:34,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 484 transitions. [2025-03-08 22:26:34,774 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 484 transitions. Word has length 142 [2025-03-08 22:26:34,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:26:34,775 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 484 transitions. [2025-03-08 22:26:34,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-08 22:26:34,775 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 484 transitions. [2025-03-08 22:26:34,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-03-08 22:26:34,775 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:26:34,776 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:26:34,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-08 22:26:34,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:34,980 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:26:34,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:26:34,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1318708954, now seen corresponding path program 1 times [2025-03-08 22:26:34,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:26:34,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777515197] [2025-03-08 22:26:34,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:26:34,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:34,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:26:34,983 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:26:34,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-08 22:26:35,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-03-08 22:26:35,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-03-08 22:26:35,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:26:35,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:26:35,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:26:35,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:26:35,851 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-08 22:26:35,852 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:26:36,178 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-08 22:26:36,179 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:26:36,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777515197] [2025-03-08 22:26:36,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777515197] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:26:36,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 22:26:36,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2025-03-08 22:26:36,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288785465] [2025-03-08 22:26:36,179 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 22:26:36,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:26:36,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:26:36,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:26:36,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:26:36,181 INFO L87 Difference]: Start difference. First operand 392 states and 484 transitions. Second operand has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 22:26:36,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:26:36,564 INFO L93 Difference]: Finished difference Result 760 states and 928 transitions. [2025-03-08 22:26:36,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:26:36,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 146 [2025-03-08 22:26:36,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:26:36,567 INFO L225 Difference]: With dead ends: 760 [2025-03-08 22:26:36,567 INFO L226 Difference]: Without dead ends: 760 [2025-03-08 22:26:36,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-08 22:26:36,567 INFO L435 NwaCegarLoop]: 527 mSDtfsCounter, 643 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 22:26:36,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 1708 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 22:26:36,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2025-03-08 22:26:36,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2025-03-08 22:26:36,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 727 states have (on average 1.188445667125172) internal successors, (864), 739 states have internal predecessors, (864), 28 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (36), 19 states have call predecessors, (36), 28 states have call successors, (36) [2025-03-08 22:26:36,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 928 transitions. [2025-03-08 22:26:36,581 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 928 transitions. Word has length 146 [2025-03-08 22:26:36,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:26:36,582 INFO L471 AbstractCegarLoop]: Abstraction has 760 states and 928 transitions. [2025-03-08 22:26:36,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 22:26:36,582 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 928 transitions. [2025-03-08 22:26:36,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2025-03-08 22:26:36,586 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:26:36,587 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:26:36,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-08 22:26:36,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:36,787 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:26:36,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:26:36,788 INFO L85 PathProgramCache]: Analyzing trace with hash 312604456, now seen corresponding path program 1 times [2025-03-08 22:26:36,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:26:36,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1572938205] [2025-03-08 22:26:36,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:26:36,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:36,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:26:36,791 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:26:36,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-08 22:26:37,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 452 statements into 1 equivalence classes. [2025-03-08 22:26:37,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 452 of 452 statements. [2025-03-08 22:26:37,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:26:37,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:26:38,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 2225 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 22:26:38,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:26:38,069 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 140 proven. 1 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2025-03-08 22:26:38,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:26:38,196 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 112 proven. 13 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2025-03-08 22:26:38,196 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:26:38,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572938205] [2025-03-08 22:26:38,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572938205] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:26:38,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 22:26:38,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-08 22:26:38,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487514936] [2025-03-08 22:26:38,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 22:26:38,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 22:26:38,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:26:38,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 22:26:38,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-08 22:26:38,198 INFO L87 Difference]: Start difference. First operand 760 states and 928 transitions. Second operand has 8 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-08 22:26:38,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:26:38,358 INFO L93 Difference]: Finished difference Result 771 states and 959 transitions. [2025-03-08 22:26:38,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 22:26:38,358 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 452 [2025-03-08 22:26:38,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:26:38,360 INFO L225 Difference]: With dead ends: 771 [2025-03-08 22:26:38,360 INFO L226 Difference]: Without dead ends: 771 [2025-03-08 22:26:38,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 905 GetRequests, 896 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-08 22:26:38,361 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 4 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:26:38,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1906 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:26:38,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2025-03-08 22:26:38,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 769. [2025-03-08 22:26:38,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 735 states have (on average 1.1945578231292517) internal successors, (878), 747 states have internal predecessors, (878), 28 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (44), 19 states have call predecessors, (44), 28 states have call successors, (44) [2025-03-08 22:26:38,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 950 transitions. [2025-03-08 22:26:38,374 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 950 transitions. Word has length 452 [2025-03-08 22:26:38,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:26:38,375 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 950 transitions. [2025-03-08 22:26:38,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.125) internal successors, (177), 8 states have internal predecessors, (177), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-08 22:26:38,375 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 950 transitions. [2025-03-08 22:26:38,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2025-03-08 22:26:38,379 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:26:38,379 INFO L218 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:26:38,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-08 22:26:38,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:38,580 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:26:38,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:26:38,581 INFO L85 PathProgramCache]: Analyzing trace with hash -726235152, now seen corresponding path program 2 times [2025-03-08 22:26:38,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:26:38,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1554835469] [2025-03-08 22:26:38,582 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:26:38,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:38,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:26:38,583 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:26:38,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-08 22:26:39,112 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 460 statements into 2 equivalence classes. [2025-03-08 22:26:39,697 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 460 of 460 statements. [2025-03-08 22:26:39,697 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 22:26:39,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:26:39,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 2313 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 22:26:39,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:26:39,886 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 154 proven. 3 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2025-03-08 22:26:39,886 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:26:40,064 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 106 proven. 48 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2025-03-08 22:26:40,065 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:26:40,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554835469] [2025-03-08 22:26:40,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554835469] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:26:40,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 22:26:40,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-08 22:26:40,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639596629] [2025-03-08 22:26:40,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 22:26:40,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 22:26:40,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:26:40,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 22:26:40,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-08 22:26:40,067 INFO L87 Difference]: Start difference. First operand 769 states and 950 transitions. Second operand has 10 states, 10 states have (on average 17.9) internal successors, (179), 10 states have internal predecessors, (179), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 22:26:40,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:26:40,483 INFO L93 Difference]: Finished difference Result 777 states and 960 transitions. [2025-03-08 22:26:40,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-08 22:26:40,484 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.9) internal successors, (179), 10 states have internal predecessors, (179), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 460 [2025-03-08 22:26:40,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:26:40,487 INFO L225 Difference]: With dead ends: 777 [2025-03-08 22:26:40,487 INFO L226 Difference]: Without dead ends: 775 [2025-03-08 22:26:40,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 923 GetRequests, 910 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-03-08 22:26:40,487 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 6 mSDsluCounter, 1588 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:26:40,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1911 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:26:40,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2025-03-08 22:26:40,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 773. [2025-03-08 22:26:40,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 739 states have (on average 1.1962110960757781) internal successors, (884), 751 states have internal predecessors, (884), 28 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (36), 19 states have call predecessors, (36), 28 states have call successors, (36) [2025-03-08 22:26:40,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 948 transitions. [2025-03-08 22:26:40,501 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 948 transitions. Word has length 460 [2025-03-08 22:26:40,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:26:40,501 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 948 transitions. [2025-03-08 22:26:40,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.9) internal successors, (179), 10 states have internal predecessors, (179), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 22:26:40,502 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 948 transitions. [2025-03-08 22:26:40,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2025-03-08 22:26:40,504 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:26:40,504 INFO L218 NwaCegarLoop]: trace histogram [20, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:26:40,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-08 22:26:40,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:40,705 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:26:40,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:26:40,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1774762512, now seen corresponding path program 3 times [2025-03-08 22:26:40,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:26:40,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [885123613] [2025-03-08 22:26:40,708 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-08 22:26:40,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:26:40,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:26:40,710 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:26:40,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-08 22:26:41,314 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 468 statements into 16 equivalence classes.