./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 8fc3dc66 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_BER_nondet_test3-2.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 be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:24:08,530 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:24:08,578 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-17 11:24:08,583 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:24:08,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:24:08,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:24:08,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:24:08,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:24:08,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:24:08,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:24:08,603 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:24:08,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:24:08,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:24:08,604 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:24:08,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:24:08,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:24:08,605 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:24:08,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:24:08,605 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 -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2025-03-17 11:24:08,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:24:08,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:24:08,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:24:08,831 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:24:08,831 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:24:08,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-2.i [2025-03-17 11:24:09,902 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5026f8497/7b083fe8aeb44e589c734c612c6e4826/FLAG3d9f01c47 [2025-03-17 11:24:10,199 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:24:10,200 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-2.i [2025-03-17 11:24:10,212 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5026f8497/7b083fe8aeb44e589c734c612c6e4826/FLAG3d9f01c47 [2025-03-17 11:24:10,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5026f8497/7b083fe8aeb44e589c734c612c6e4826 [2025-03-17 11:24:10,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:24:10,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:24:10,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:24:10,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:24:10,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:24:10,473 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:24:10" (1/1) ... [2025-03-17 11:24:10,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7636a56a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:10, skipping insertion in model container [2025-03-17 11:24:10,474 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:24:10" (1/1) ... [2025-03-17 11:24:10,499 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:24:10,774 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,801 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,804 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,807 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,814 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,846 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,848 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,850 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,850 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,853 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,858 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,859 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,859 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,865 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,866 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,868 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,868 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,868 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,869 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,871 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:10,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:24:10,890 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) [2025-03-17 11:24:10,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@99d3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:10, skipping insertion in model container [2025-03-17 11:24:10,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:24:10,891 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-17 11:24:10,892 INFO L158 Benchmark]: Toolchain (without parser) took 422.90ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 100.6MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 11:24:10,892 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 114.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:24:10,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.28ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 100.6MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 11:24:10,893 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 114.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.28ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 100.6MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: 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_BER_nondet_test3-2.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 be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:24:12,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:24:12,525 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-17 11:24:12,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:24:12,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:24:12,559 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:24:12,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:24:12,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:24:12,560 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:24:12,560 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:24:12,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:24:12,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:24:12,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:24:12,566 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:24:12,566 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:24:12,567 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:24:12,567 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:24:12,567 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:24:12,568 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:24:12,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:24:12,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:24:12,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:24:12,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:24:12,568 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 11:24:12,568 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 11:24:12,568 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:24:12,568 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:24:12,568 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:24:12,568 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:24:12,568 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 -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2025-03-17 11:24:12,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:24:12,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:24:12,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:24:12,774 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:24:12,774 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:24:12,775 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-2.i [2025-03-17 11:24:13,892 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93597ce8a/e235febdcb8145edbf68dadc1e7ce746/FLAG881b7a956 [2025-03-17 11:24:14,194 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:24:14,197 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test3-2.i [2025-03-17 11:24:14,215 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93597ce8a/e235febdcb8145edbf68dadc1e7ce746/FLAG881b7a956 [2025-03-17 11:24:14,470 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93597ce8a/e235febdcb8145edbf68dadc1e7ce746 [2025-03-17 11:24:14,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:24:14,475 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:24:14,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:24:14,477 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:24:14,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:24:14,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:24:14" (1/1) ... [2025-03-17 11:24:14,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44296d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:14, skipping insertion in model container [2025-03-17 11:24:14,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:24:14" (1/1) ... [2025-03-17 11:24:14,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:24:14,755 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,786 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,789 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,791 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,796 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,820 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,820 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,822 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,822 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,824 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,825 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,825 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,826 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,829 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,829 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,831 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,831 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,832 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,832 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,834 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:24:14,851 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-17 11:24:14,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:24:14,883 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,904 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,906 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,909 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,912 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,937 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,939 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,942 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,942 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,944 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,947 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,948 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,948 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,950 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,952 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,954 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,955 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,955 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,956 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,958 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:24:14,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:24:14,968 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:24:15,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:24:15,061 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:24:15,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15 WrapperNode [2025-03-17 11:24:15,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:24:15,063 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:24:15,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:24:15,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:24:15,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (1/1) ... [2025-03-17 11:24:15,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (1/1) ... [2025-03-17 11:24:15,131 INFO L138 Inliner]: procedures = 180, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1137 [2025-03-17 11:24:15,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:24:15,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:24:15,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:24:15,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:24:15,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (1/1) ... [2025-03-17 11:24:15,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (1/1) ... [2025-03-17 11:24:15,150 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (1/1) ... [2025-03-17 11:24:15,211 INFO L175 MemorySlicer]: Split 302 memory accesses to 3 slices as follows [2, 34, 266]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 4, 58]. [2025-03-17 11:24:15,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (1/1) ... [2025-03-17 11:24:15,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (1/1) ... [2025-03-17 11:24:15,236 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (1/1) ... [2025-03-17 11:24:15,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (1/1) ... [2025-03-17 11:24:15,248 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (1/1) ... [2025-03-17 11:24:15,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (1/1) ... [2025-03-17 11:24:15,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:24:15,264 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:24:15,265 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:24:15,265 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:24:15,266 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (1/1) ... [2025-03-17 11:24:15,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:24:15,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:15,290 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) [2025-03-17 11:24:15,295 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 [2025-03-17 11:24:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-17 11:24:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-17 11:24:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 11:24:15,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-17 11:24:15,311 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 11:24:15,311 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 11:24:15,311 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-17 11:24:15,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-17 11:24:15,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:24:15,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:24:15,489 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:24:15,490 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:24:22,903 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-17 11:24:22,984 INFO L? ?]: Removed 141 outVars from TransFormulas that were not future-live. [2025-03-17 11:24:22,984 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:24:22,996 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:24:22,997 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:24:22,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:24:22 BoogieIcfgContainer [2025-03-17 11:24:22,998 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:24:22,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:24:22,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:24:23,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:24:23,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:24:14" (1/3) ... [2025-03-17 11:24:23,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49983321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:24:23, skipping insertion in model container [2025-03-17 11:24:23,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:24:15" (2/3) ... [2025-03-17 11:24:23,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49983321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:24:23, skipping insertion in model container [2025-03-17 11:24:23,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:24:22" (3/3) ... [2025-03-17 11:24:23,005 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test3-2.i [2025-03-17 11:24:23,019 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:24:23,021 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_nondet_test3-2.i that has 5 procedures, 231 locations, 1 initial locations, 41 loop locations, and 2 error locations. [2025-03-17 11:24:23,056 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:24:23,066 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;@73ef74b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:24:23,068 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 11:24:23,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 213 states have (on average 1.6619718309859155) internal successors, (354), 216 states have internal predecessors, (354), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 11:24:23,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 11:24:23,076 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:23,076 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 11:24:23,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:23,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:23,082 INFO L85 PathProgramCache]: Analyzing trace with hash 391791, now seen corresponding path program 1 times [2025-03-17 11:24:23,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:23,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625383034] [2025-03-17 11:24:23,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:23,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:23,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:23,093 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) [2025-03-17 11:24:23,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 11:24:23,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 11:24:23,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 11:24:23,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:23,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:23,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:24:23,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:23,333 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_18| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18| (_ bv0 1)) |c_#valid|))) is different from true [2025-03-17 11:24:23,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:24:23,338 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:24:23,339 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:23,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625383034] [2025-03-17 11:24:23,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625383034] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:24:23,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:24:23,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:24:23,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932047491] [2025-03-17 11:24:23,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:24:23,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:24:23,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:23,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:24:23,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-03-17 11:24:23,365 INFO L87 Difference]: Start difference. First operand has 223 states, 213 states have (on average 1.6619718309859155) internal successors, (354), 216 states have internal predecessors, (354), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:24:27,594 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 [] [2025-03-17 11:24:28,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:28,479 INFO L93 Difference]: Finished difference Result 341 states and 453 transitions. [2025-03-17 11:24:28,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:24:28,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-03-17 11:24:28,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:28,495 INFO L225 Difference]: With dead ends: 341 [2025-03-17 11:24:28,495 INFO L226 Difference]: Without dead ends: 338 [2025-03-17 11:24:28,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-03-17 11:24:28,498 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 152 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 454 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:24:28,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 552 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 1 Unknown, 454 Unchecked, 5.1s Time] [2025-03-17 11:24:28,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2025-03-17 11:24:28,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 220. [2025-03-17 11:24:28,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 211 states have (on average 1.3175355450236967) internal successors, (278), 213 states have internal predecessors, (278), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 11:24:28,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 288 transitions. [2025-03-17 11:24:28,549 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 288 transitions. Word has length 3 [2025-03-17 11:24:28,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:28,549 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 288 transitions. [2025-03-17 11:24:28,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:24:28,550 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 288 transitions. [2025-03-17 11:24:28,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-17 11:24:28,551 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:28,551 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:28,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 11:24:28,751 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 [2025-03-17 11:24:28,751 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:28,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:28,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2017335277, now seen corresponding path program 1 times [2025-03-17 11:24:28,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:28,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665779614] [2025-03-17 11:24:28,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:28,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:28,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:28,754 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) [2025-03-17 11:24:28,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 11:24:28,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 11:24:28,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 11:24:28,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:28,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:28,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:24:28,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:24:28,980 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:24:28,980 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:28,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665779614] [2025-03-17 11:24:28,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665779614] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:24:28,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:24:28,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:24:28,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937570940] [2025-03-17 11:24:28,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:24:28,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:24:28,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:28,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:24:28,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:24:28,983 INFO L87 Difference]: Start difference. First operand 220 states and 288 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:24:29,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:29,697 INFO L93 Difference]: Finished difference Result 360 states and 475 transitions. [2025-03-17 11:24:29,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:24:29,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-03-17 11:24:29,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:29,703 INFO L225 Difference]: With dead ends: 360 [2025-03-17 11:24:29,703 INFO L226 Difference]: Without dead ends: 360 [2025-03-17 11:24:29,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:24:29,704 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 171 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 11:24:29,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 519 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 11:24:29,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2025-03-17 11:24:29,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 330. [2025-03-17 11:24:29,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 319 states have (on average 1.322884012539185) internal successors, (422), 322 states have internal predecessors, (422), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 11:24:29,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 436 transitions. [2025-03-17 11:24:29,718 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 436 transitions. Word has length 13 [2025-03-17 11:24:29,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:29,718 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 436 transitions. [2025-03-17 11:24:29,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:24:29,718 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 436 transitions. [2025-03-17 11:24:29,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-17 11:24:29,719 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:29,719 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:29,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 11:24:29,921 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 [2025-03-17 11:24:29,921 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:29,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:29,922 INFO L85 PathProgramCache]: Analyzing trace with hash 2017365068, now seen corresponding path program 1 times [2025-03-17 11:24:29,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:29,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190857127] [2025-03-17 11:24:29,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:29,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:29,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:29,927 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) [2025-03-17 11:24:29,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 11:24:30,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 11:24:30,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 11:24:30,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:30,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:30,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:24:30,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:30,168 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_19| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_19| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_19|)))) is different from true [2025-03-17 11:24:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:24:30,169 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:24:30,169 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:30,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190857127] [2025-03-17 11:24:30,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190857127] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:24:30,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:24:30,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:24:30,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806706453] [2025-03-17 11:24:30,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:24:30,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:24:30,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:30,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:24:30,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-03-17 11:24:30,170 INFO L87 Difference]: Start difference. First operand 330 states and 436 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:24:34,303 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 [] [2025-03-17 11:24:34,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:34,541 INFO L93 Difference]: Finished difference Result 445 states and 588 transitions. [2025-03-17 11:24:34,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:24:34,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-03-17 11:24:34,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:34,548 INFO L225 Difference]: With dead ends: 445 [2025-03-17 11:24:34,548 INFO L226 Difference]: Without dead ends: 444 [2025-03-17 11:24:34,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-03-17 11:24:34,548 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 117 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 423 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:24:34,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 550 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 1 Unknown, 423 Unchecked, 4.4s Time] [2025-03-17 11:24:34,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2025-03-17 11:24:34,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 380. [2025-03-17 11:24:34,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 367 states have (on average 1.3215258855585832) internal successors, (485), 370 states have internal predecessors, (485), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-17 11:24:34,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 503 transitions. [2025-03-17 11:24:34,564 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 503 transitions. Word has length 13 [2025-03-17 11:24:34,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:34,565 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 503 transitions. [2025-03-17 11:24:34,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:24:34,565 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 503 transitions. [2025-03-17 11:24:34,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 11:24:34,565 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:34,566 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:34,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 11:24:34,767 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 [2025-03-17 11:24:34,767 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:34,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:34,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1501564640, now seen corresponding path program 1 times [2025-03-17 11:24:34,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:34,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [63404951] [2025-03-17 11:24:34,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:34,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:34,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:34,772 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) [2025-03-17 11:24:34,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 11:24:34,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 11:24:34,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 11:24:34,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:34,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:34,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:24:34,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:24:34,948 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:24:34,948 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:34,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63404951] [2025-03-17 11:24:34,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63404951] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:24:34,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:24:34,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:24:34,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875242669] [2025-03-17 11:24:34,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:24:34,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:24:34,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:34,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:24:34,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:24:34,950 INFO L87 Difference]: Start difference. First operand 380 states and 503 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-03-17 11:24:39,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:24:40,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:40,960 INFO L93 Difference]: Finished difference Result 408 states and 535 transitions. [2025-03-17 11:24:40,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:24:40,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 14 [2025-03-17 11:24:40,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:40,963 INFO L225 Difference]: With dead ends: 408 [2025-03-17 11:24:40,963 INFO L226 Difference]: Without dead ends: 403 [2025-03-17 11:24:40,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:24:40,964 INFO L435 NwaCegarLoop]: 295 mSDtfsCounter, 175 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:24:40,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 807 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2025-03-17 11:24:40,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2025-03-17 11:24:40,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 373. [2025-03-17 11:24:40,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 362 states have (on average 1.3176795580110496) internal successors, (477), 365 states have internal predecessors, (477), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 11:24:40,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 491 transitions. [2025-03-17 11:24:40,972 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 491 transitions. Word has length 14 [2025-03-17 11:24:40,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:40,972 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 491 transitions. [2025-03-17 11:24:40,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-03-17 11:24:40,972 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 491 transitions. [2025-03-17 11:24:40,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-17 11:24:40,973 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:40,973 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:40,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 11:24:41,177 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 [2025-03-17 11:24:41,177 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:41,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:41,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1815244635, now seen corresponding path program 1 times [2025-03-17 11:24:41,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:41,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11755596] [2025-03-17 11:24:41,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:41,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:41,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:41,180 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) [2025-03-17 11:24:41,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 11:24:41,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 11:24:41,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 11:24:41,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:41,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:41,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:24:41,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:41,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:24:41,348 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:24:41,349 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:41,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11755596] [2025-03-17 11:24:41,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11755596] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:24:41,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:24:41,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:24:41,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972279357] [2025-03-17 11:24:41,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:24:41,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:24:41,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:41,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:24:41,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:24:41,350 INFO L87 Difference]: Start difference. First operand 373 states and 491 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2025-03-17 11:24:41,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:41,461 INFO L93 Difference]: Finished difference Result 433 states and 551 transitions. [2025-03-17 11:24:41,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:24:41,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 48 [2025-03-17 11:24:41,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:41,463 INFO L225 Difference]: With dead ends: 433 [2025-03-17 11:24:41,463 INFO L226 Difference]: Without dead ends: 433 [2025-03-17 11:24:41,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:24:41,465 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 9 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 521 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 [2025-03-17 11:24:41,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 521 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:24:41,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2025-03-17 11:24:41,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2025-03-17 11:24:41,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 422 states have (on average 1.2725118483412323) internal successors, (537), 425 states have internal predecessors, (537), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 11:24:41,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 551 transitions. [2025-03-17 11:24:41,473 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 551 transitions. Word has length 48 [2025-03-17 11:24:41,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:41,474 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 551 transitions. [2025-03-17 11:24:41,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2025-03-17 11:24:41,474 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 551 transitions. [2025-03-17 11:24:41,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-17 11:24:41,477 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:41,477 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:41,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 11:24:41,679 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 [2025-03-17 11:24:41,679 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:41,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:41,679 INFO L85 PathProgramCache]: Analyzing trace with hash 529422406, now seen corresponding path program 1 times [2025-03-17 11:24:41,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:41,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1555808990] [2025-03-17 11:24:41,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:41,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:41,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:41,682 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) [2025-03-17 11:24:41,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 11:24:41,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 11:24:41,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 11:24:41,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:41,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:41,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:24:41,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:41,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:24:41,848 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:24:41,848 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:41,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555808990] [2025-03-17 11:24:41,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555808990] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:24:41,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:24:41,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:24:41,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356057240] [2025-03-17 11:24:41,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:24:41,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:24:41,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:41,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:24:41,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:24:41,849 INFO L87 Difference]: Start difference. First operand 433 states and 551 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2025-03-17 11:24:41,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:41,938 INFO L93 Difference]: Finished difference Result 382 states and 467 transitions. [2025-03-17 11:24:41,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:24:41,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 48 [2025-03-17 11:24:41,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:41,941 INFO L225 Difference]: With dead ends: 382 [2025-03-17 11:24:41,941 INFO L226 Difference]: Without dead ends: 382 [2025-03-17 11:24:41,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:24:41,941 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 32 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 754 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 [2025-03-17 11:24:41,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 754 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:24:41,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2025-03-17 11:24:41,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2025-03-17 11:24:41,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 371 states have (on average 1.221024258760108) internal successors, (453), 374 states have internal predecessors, (453), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 11:24:41,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 467 transitions. [2025-03-17 11:24:41,951 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 467 transitions. Word has length 48 [2025-03-17 11:24:41,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:41,951 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 467 transitions. [2025-03-17 11:24:41,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2025-03-17 11:24:41,951 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 467 transitions. [2025-03-17 11:24:41,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-17 11:24:41,953 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:41,953 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:41,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 11:24:42,154 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 [2025-03-17 11:24:42,154 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:42,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:42,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1379453089, now seen corresponding path program 1 times [2025-03-17 11:24:42,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:42,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665607450] [2025-03-17 11:24:42,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:42,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:42,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:42,156 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) [2025-03-17 11:24:42,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 11:24:42,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 11:24:42,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 11:24:42,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:42,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:42,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 11:24:42,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:42,305 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:24:42,305 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:24:42,305 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:24:42,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-03-17 11:24:42,365 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:24:42,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-03-17 11:24:42,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:24:42,407 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:24:42,407 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:42,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665607450] [2025-03-17 11:24:42,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665607450] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:24:42,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:24:42,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:24:42,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606324147] [2025-03-17 11:24:42,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:24:42,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 11:24:42,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:42,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 11:24:42,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:24:42,408 INFO L87 Difference]: Start difference. First operand 382 states and 467 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2025-03-17 11:24:42,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:42,877 INFO L93 Difference]: Finished difference Result 384 states and 478 transitions. [2025-03-17 11:24:42,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:24:42,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 48 [2025-03-17 11:24:42,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:42,880 INFO L225 Difference]: With dead ends: 384 [2025-03-17 11:24:42,880 INFO L226 Difference]: Without dead ends: 381 [2025-03-17 11:24:42,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:24:42,881 INFO L435 NwaCegarLoop]: 296 mSDtfsCounter, 105 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:24:42,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1132 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 11:24:42,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2025-03-17 11:24:42,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 335. [2025-03-17 11:24:42,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 325 states have (on average 1.243076923076923) internal successors, (404), 328 states have internal predecessors, (404), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 11:24:42,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 416 transitions. [2025-03-17 11:24:42,887 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 416 transitions. Word has length 48 [2025-03-17 11:24:42,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:42,887 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 416 transitions. [2025-03-17 11:24:42,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2025-03-17 11:24:42,887 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 416 transitions. [2025-03-17 11:24:42,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-17 11:24:42,888 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:42,889 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:42,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 11:24:43,089 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 [2025-03-17 11:24:43,089 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:43,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:43,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1650430296, now seen corresponding path program 1 times [2025-03-17 11:24:43,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:43,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2038973036] [2025-03-17 11:24:43,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:43,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:43,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:43,093 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) [2025-03-17 11:24:43,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 11:24:43,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-17 11:24:43,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-17 11:24:43,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:43,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:43,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:24:43,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:43,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 11:24:43,403 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:24:43,403 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:43,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038973036] [2025-03-17 11:24:43,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038973036] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:24:43,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:24:43,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:24:43,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875222663] [2025-03-17 11:24:43,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:24:43,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:24:43,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:43,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:24:43,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:24:43,404 INFO L87 Difference]: Start difference. First operand 335 states and 416 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:24:43,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:43,477 INFO L93 Difference]: Finished difference Result 375 states and 456 transitions. [2025-03-17 11:24:43,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:24:43,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2025-03-17 11:24:43,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:43,479 INFO L225 Difference]: With dead ends: 375 [2025-03-17 11:24:43,479 INFO L226 Difference]: Without dead ends: 375 [2025-03-17 11:24:43,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:24:43,479 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 8 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 499 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 [2025-03-17 11:24:43,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 499 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:24:43,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-03-17 11:24:43,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2025-03-17 11:24:43,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 365 states have (on average 1.2164383561643837) internal successors, (444), 368 states have internal predecessors, (444), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 11:24:43,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 456 transitions. [2025-03-17 11:24:43,485 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 456 transitions. Word has length 82 [2025-03-17 11:24:43,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:43,485 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 456 transitions. [2025-03-17 11:24:43,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:24:43,485 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 456 transitions. [2025-03-17 11:24:43,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-17 11:24:43,486 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:43,486 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:43,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 11:24:43,686 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 [2025-03-17 11:24:43,687 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:43,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:43,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1477840681, now seen corresponding path program 1 times [2025-03-17 11:24:43,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:43,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938194052] [2025-03-17 11:24:43,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:43,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:43,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:43,690 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) [2025-03-17 11:24:43,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 11:24:43,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-17 11:24:43,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-17 11:24:43,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:43,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:43,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:24:43,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:44,171 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 11:24:44,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:24:44,172 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:44,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938194052] [2025-03-17 11:24:44,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938194052] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:24:44,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:24:44,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:24:44,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094044291] [2025-03-17 11:24:44,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:24:44,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:24:44,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:44,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:24:44,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:24:44,173 INFO L87 Difference]: Start difference. First operand 375 states and 456 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:24:48,510 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 [] [2025-03-17 11:24:52,517 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 [] [2025-03-17 11:24:54,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:54,560 INFO L93 Difference]: Finished difference Result 539 states and 661 transitions. [2025-03-17 11:24:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:24:54,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2025-03-17 11:24:54,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:54,562 INFO L225 Difference]: With dead ends: 539 [2025-03-17 11:24:54,562 INFO L226 Difference]: Without dead ends: 539 [2025-03-17 11:24:54,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:24:54,562 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 566 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:24:54,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 542 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 122 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2025-03-17 11:24:54,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2025-03-17 11:24:54,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 468. [2025-03-17 11:24:54,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 456 states have (on average 1.2105263157894737) internal successors, (552), 460 states have internal predecessors, (552), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 11:24:54,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 568 transitions. [2025-03-17 11:24:54,571 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 568 transitions. Word has length 82 [2025-03-17 11:24:54,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:54,573 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 568 transitions. [2025-03-17 11:24:54,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:24:54,573 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 568 transitions. [2025-03-17 11:24:54,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-17 11:24:54,573 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:54,574 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:54,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 11:24:54,774 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 [2025-03-17 11:24:54,774 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:54,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:54,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1817130358, now seen corresponding path program 1 times [2025-03-17 11:24:54,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:54,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725092468] [2025-03-17 11:24:54,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:54,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:54,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:54,777 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) [2025-03-17 11:24:54,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 11:24:54,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-17 11:24:55,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-17 11:24:55,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:55,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:55,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:24:55,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:55,088 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 11:24:55,088 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:24:55,088 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:55,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725092468] [2025-03-17 11:24:55,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725092468] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:24:55,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:24:55,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:24:55,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85811768] [2025-03-17 11:24:55,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:24:55,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:24:55,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:55,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:24:55,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:24:55,090 INFO L87 Difference]: Start difference. First operand 468 states and 568 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:24:55,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:55,191 INFO L93 Difference]: Finished difference Result 434 states and 512 transitions. [2025-03-17 11:24:55,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:24:55,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2025-03-17 11:24:55,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:55,193 INFO L225 Difference]: With dead ends: 434 [2025-03-17 11:24:55,193 INFO L226 Difference]: Without dead ends: 434 [2025-03-17 11:24:55,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:24:55,194 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 32 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 721 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 [2025-03-17 11:24:55,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 721 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:24:55,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2025-03-17 11:24:55,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2025-03-17 11:24:55,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 422 states have (on average 1.1753554502369667) internal successors, (496), 426 states have internal predecessors, (496), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 11:24:55,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 512 transitions. [2025-03-17 11:24:55,202 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 512 transitions. Word has length 83 [2025-03-17 11:24:55,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:55,202 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 512 transitions. [2025-03-17 11:24:55,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:24:55,202 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 512 transitions. [2025-03-17 11:24:55,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-17 11:24:55,202 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:55,202 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:55,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-17 11:24:55,403 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 [2025-03-17 11:24:55,403 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:55,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:55,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1529363471, now seen corresponding path program 1 times [2025-03-17 11:24:55,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:55,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [225015986] [2025-03-17 11:24:55,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:55,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:55,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:55,406 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) [2025-03-17 11:24:55,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 11:24:55,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-17 11:24:55,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-17 11:24:55,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:55,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:55,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:24:55,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 11:24:55,746 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:24:55,746 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:55,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225015986] [2025-03-17 11:24:55,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225015986] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:24:55,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:24:55,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:24:55,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467737705] [2025-03-17 11:24:55,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:24:55,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:24:55,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:55,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:24:55,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:24:55,748 INFO L87 Difference]: Start difference. First operand 434 states and 512 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:24:55,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:55,786 INFO L93 Difference]: Finished difference Result 437 states and 516 transitions. [2025-03-17 11:24:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:24:55,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2025-03-17 11:24:55,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:55,789 INFO L225 Difference]: With dead ends: 437 [2025-03-17 11:24:55,789 INFO L226 Difference]: Without dead ends: 437 [2025-03-17 11:24:55,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:24:55,789 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:24:55,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 785 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:24:55,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2025-03-17 11:24:55,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2025-03-17 11:24:55,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 424 states have (on average 1.1768867924528301) internal successors, (499), 429 states have internal predecessors, (499), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:24:55,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 516 transitions. [2025-03-17 11:24:55,798 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 516 transitions. Word has length 83 [2025-03-17 11:24:55,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:55,799 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 516 transitions. [2025-03-17 11:24:55,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:24:55,799 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 516 transitions. [2025-03-17 11:24:55,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-03-17 11:24:55,800 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:55,800 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:55,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-17 11:24:56,000 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 [2025-03-17 11:24:56,001 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:56,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:56,001 INFO L85 PathProgramCache]: Analyzing trace with hash -472019445, now seen corresponding path program 1 times [2025-03-17 11:24:56,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:56,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2141950196] [2025-03-17 11:24:56,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:56,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:56,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:56,004 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) [2025-03-17 11:24:56,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 11:24:56,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-17 11:24:56,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-17 11:24:56,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:56,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:56,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:24:56,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 11:24:56,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:24:56,434 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 11:24:56,434 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:56,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141950196] [2025-03-17 11:24:56,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141950196] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:24:56,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:24:56,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-17 11:24:56,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674510103] [2025-03-17 11:24:56,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:24:56,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 11:24:56,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:56,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 11:24:56,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 11:24:56,435 INFO L87 Difference]: Start difference. First operand 437 states and 516 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:24:56,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:56,532 INFO L93 Difference]: Finished difference Result 448 states and 533 transitions. [2025-03-17 11:24:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:24:56,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 85 [2025-03-17 11:24:56,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:56,534 INFO L225 Difference]: With dead ends: 448 [2025-03-17 11:24:56,534 INFO L226 Difference]: Without dead ends: 448 [2025-03-17 11:24:56,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-17 11:24:56,534 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 4 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:24:56,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 785 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:24:56,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2025-03-17 11:24:56,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 446. [2025-03-17 11:24:56,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 432 states have (on average 1.1875) internal successors, (513), 437 states have internal predecessors, (513), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-17 11:24:56,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 531 transitions. [2025-03-17 11:24:56,550 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 531 transitions. Word has length 85 [2025-03-17 11:24:56,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:56,550 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 531 transitions. [2025-03-17 11:24:56,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:24:56,550 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 531 transitions. [2025-03-17 11:24:56,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-17 11:24:56,550 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:56,550 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:56,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-17 11:24:56,751 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 [2025-03-17 11:24:56,751 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:56,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:56,752 INFO L85 PathProgramCache]: Analyzing trace with hash 596760079, now seen corresponding path program 2 times [2025-03-17 11:24:56,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:56,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545177940] [2025-03-17 11:24:56,752 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:24:56,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:56,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:56,755 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) [2025-03-17 11:24:56,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 11:24:56,975 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 89 statements into 2 equivalence classes. [2025-03-17 11:24:57,129 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 11:24:57,129 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 11:24:57,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:57,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:24:57,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:57,275 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-17 11:24:57,275 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:24:57,460 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-17 11:24:57,461 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:57,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545177940] [2025-03-17 11:24:57,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545177940] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:24:57,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:24:57,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-17 11:24:57,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079192282] [2025-03-17 11:24:57,461 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:24:57,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:24:57,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:57,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:24:57,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:24:57,462 INFO L87 Difference]: Start difference. First operand 446 states and 531 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:24:57,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:57,694 INFO L93 Difference]: Finished difference Result 454 states and 541 transitions. [2025-03-17 11:24:57,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 11:24:57,695 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 89 [2025-03-17 11:24:57,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:57,696 INFO L225 Difference]: With dead ends: 454 [2025-03-17 11:24:57,696 INFO L226 Difference]: Without dead ends: 452 [2025-03-17 11:24:57,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-03-17 11:24:57,697 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 6 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:24:57,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2082 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:24:57,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2025-03-17 11:24:57,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 450. [2025-03-17 11:24:57,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 436 states have (on average 1.1903669724770642) internal successors, (519), 441 states have internal predecessors, (519), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:24:57,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 536 transitions. [2025-03-17 11:24:57,703 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 536 transitions. Word has length 89 [2025-03-17 11:24:57,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:57,704 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 536 transitions. [2025-03-17 11:24:57,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:24:57,704 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 536 transitions. [2025-03-17 11:24:57,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-03-17 11:24:57,704 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:57,705 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:57,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-17 11:24:57,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:57,905 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:57,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:57,906 INFO L85 PathProgramCache]: Analyzing trace with hash -422352881, now seen corresponding path program 3 times [2025-03-17 11:24:57,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:57,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1450698071] [2025-03-17 11:24:57,906 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:24:57,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:57,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:57,908 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:24:57,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-17 11:24:58,144 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 93 statements into 6 equivalence classes. [2025-03-17 11:24:58,241 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 76 of 93 statements. [2025-03-17 11:24:58,241 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-17 11:24:58,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:58,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 11:24:58,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:58,642 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:24:58,642 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:24:58,642 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:24:58,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-03-17 11:24:58,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:24:58,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-03-17 11:24:58,767 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-03-17 11:24:58,767 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:24:58,767 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:58,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450698071] [2025-03-17 11:24:58,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450698071] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:24:58,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:24:58,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 11:24:58,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926856975] [2025-03-17 11:24:58,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:24:58,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:24:58,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:58,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:24:58,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:24:58,768 INFO L87 Difference]: Start difference. First operand 450 states and 536 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:24:59,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:24:59,089 INFO L93 Difference]: Finished difference Result 558 states and 665 transitions. [2025-03-17 11:24:59,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:24:59,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2025-03-17 11:24:59,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:24:59,092 INFO L225 Difference]: With dead ends: 558 [2025-03-17 11:24:59,092 INFO L226 Difference]: Without dead ends: 558 [2025-03-17 11:24:59,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:24:59,093 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 333 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 11:24:59,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 751 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 11:24:59,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2025-03-17 11:24:59,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 452. [2025-03-17 11:24:59,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 438 states have (on average 1.1894977168949772) internal successors, (521), 443 states have internal predecessors, (521), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:24:59,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 538 transitions. [2025-03-17 11:24:59,103 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 538 transitions. Word has length 93 [2025-03-17 11:24:59,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:24:59,103 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 538 transitions. [2025-03-17 11:24:59,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:24:59,103 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 538 transitions. [2025-03-17 11:24:59,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-17 11:24:59,104 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:24:59,105 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:24:59,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-17 11:24:59,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:59,305 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:24:59,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:24:59,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1505611706, now seen corresponding path program 1 times [2025-03-17 11:24:59,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:24:59,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570368067] [2025-03-17 11:24:59,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:24:59,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:24:59,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:24:59,308 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:24:59,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-17 11:24:59,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 11:24:59,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 11:24:59,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:24:59,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:24:59,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 11:24:59,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:24:59,775 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 11:24:59,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:24:59,967 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 11:24:59,967 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:24:59,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570368067] [2025-03-17 11:24:59,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570368067] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:24:59,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:24:59,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-03-17 11:24:59,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131479597] [2025-03-17 11:24:59,967 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:24:59,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 11:24:59,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:24:59,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 11:24:59,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-03-17 11:24:59,968 INFO L87 Difference]: Start difference. First operand 452 states and 538 transitions. Second operand has 14 states, 14 states have (on average 9.428571428571429) internal successors, (132), 14 states have internal predecessors, (132), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:25:00,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:25:00,555 INFO L93 Difference]: Finished difference Result 464 states and 554 transitions. [2025-03-17 11:25:00,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-17 11:25:00,556 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.428571428571429) internal successors, (132), 14 states have internal predecessors, (132), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 135 [2025-03-17 11:25:00,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:25:00,558 INFO L225 Difference]: With dead ends: 464 [2025-03-17 11:25:00,558 INFO L226 Difference]: Without dead ends: 460 [2025-03-17 11:25:00,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2025-03-17 11:25:00,560 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 8 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 11:25:00,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1570 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 11:25:00,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2025-03-17 11:25:00,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 458. [2025-03-17 11:25:00,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 444 states have (on average 1.195945945945946) internal successors, (531), 449 states have internal predecessors, (531), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:25:00,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 548 transitions. [2025-03-17 11:25:00,569 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 548 transitions. Word has length 135 [2025-03-17 11:25:00,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:25:00,569 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 548 transitions. [2025-03-17 11:25:00,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.428571428571429) internal successors, (132), 14 states have internal predecessors, (132), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:25:00,569 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 548 transitions. [2025-03-17 11:25:00,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-17 11:25:00,570 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:25:00,570 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:25:00,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-17 11:25:00,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:25:00,771 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:25:00,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:25:00,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1384114490, now seen corresponding path program 2 times [2025-03-17 11:25:00,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:25:00,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1360690930] [2025-03-17 11:25:00,772 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:25:00,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:25:00,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:25:00,775 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:25:00,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-17 11:25:01,028 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 141 statements into 2 equivalence classes. [2025-03-17 11:25:01,237 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 141 of 141 statements. [2025-03-17 11:25:01,237 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 11:25:01,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:25:01,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 11:25:01,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:25:01,350 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 82 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-17 11:25:01,350 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:25:01,650 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-17 11:25:01,651 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:25:01,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360690930] [2025-03-17 11:25:01,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360690930] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:25:01,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:25:01,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2025-03-17 11:25:01,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408049111] [2025-03-17 11:25:01,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:25:01,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 11:25:01,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:25:01,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 11:25:01,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2025-03-17 11:25:01,653 INFO L87 Difference]: Start difference. First operand 458 states and 548 transitions. Second operand has 18 states, 18 states have (on average 7.777777777777778) internal successors, (140), 18 states have internal predecessors, (140), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:25:02,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:25:02,318 INFO L93 Difference]: Finished difference Result 472 states and 567 transitions. [2025-03-17 11:25:02,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-17 11:25:02,319 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.777777777777778) internal successors, (140), 18 states have internal predecessors, (140), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 141 [2025-03-17 11:25:02,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:25:02,320 INFO L225 Difference]: With dead ends: 472 [2025-03-17 11:25:02,320 INFO L226 Difference]: Without dead ends: 466 [2025-03-17 11:25:02,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=324, Invalid=606, Unknown=0, NotChecked=0, Total=930 [2025-03-17 11:25:02,321 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 10 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 11:25:02,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2100 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 11:25:02,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2025-03-17 11:25:02,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2025-03-17 11:25:02,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 452 states have (on average 1.1902654867256637) internal successors, (538), 457 states have internal predecessors, (538), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:25:02,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 555 transitions. [2025-03-17 11:25:02,327 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 555 transitions. Word has length 141 [2025-03-17 11:25:02,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:25:02,327 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 555 transitions. [2025-03-17 11:25:02,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.777777777777778) internal successors, (140), 18 states have internal predecessors, (140), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:25:02,327 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 555 transitions. [2025-03-17 11:25:02,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-03-17 11:25:02,328 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:25:02,328 INFO L218 NwaCegarLoop]: trace histogram [24, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:25:02,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-17 11:25:02,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:25:02,529 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:25:02,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:25:02,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1713369798, now seen corresponding path program 3 times [2025-03-17 11:25:02,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:25:02,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731882404] [2025-03-17 11:25:02,530 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:25:02,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:25:02,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:25:02,532 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:25:02,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-17 11:25:02,797 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 149 statements into 10 equivalence classes.