./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.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_OAT_test4-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd259ad1e1e9b7f6e2ebd2858541cc7ac07d30ed5cbee2b9de70c1db1c5b700e --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:35:10,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:35:10,949 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-17 11:35:10,955 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:35:10,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:35:10,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:35:10,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:35:10,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:35:10,978 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:35:10,978 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:35:10,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:35:10,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:35:10,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:35:10,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:35:10,979 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:35:10,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:35:10,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:35:10,979 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:35:10,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:35:10,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:35:10,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:35:10,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:35:10,980 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:35:10,980 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:35:10,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:35:10,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:35:10,980 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:35:10,980 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:35:10,980 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:35:10,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:35:10,981 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:35:10,981 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:35:10,981 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:35:10,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:35:10,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:35:10,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:35:10,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:35:10,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:35:10,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:35:10,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:35:10,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:35:10,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:35:10,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:35:10,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:35:10,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:35:10,982 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 -> bd259ad1e1e9b7f6e2ebd2858541cc7ac07d30ed5cbee2b9de70c1db1c5b700e [2025-03-17 11:35:11,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:35:11,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:35:11,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:35:11,193 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:35:11,193 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:35:11,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i [2025-03-17 11:35:12,274 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e52533942/f6bc949a9bca4e3093927473541a0f16/FLAG680ffc9b5 [2025-03-17 11:35:12,556 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:35:12,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i [2025-03-17 11:35:12,570 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e52533942/f6bc949a9bca4e3093927473541a0f16/FLAG680ffc9b5 [2025-03-17 11:35:12,838 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e52533942/f6bc949a9bca4e3093927473541a0f16 [2025-03-17 11:35:12,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:35:12,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:35:12,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:35:12,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:35:12,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:35:12,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:35:12" (1/1) ... [2025-03-17 11:35:12,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ee4aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:12, skipping insertion in model container [2025-03-17 11:35:12,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:35:12" (1/1) ... [2025-03-17 11:35:12,881 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:35:13,180 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 11:35:13,202 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 11:35:13,211 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 11:35:13,215 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 11:35:13,223 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 11:35:13,251 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 11:35:13,253 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 11:35:13,254 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 11:35:13,257 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 11:35:13,263 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 11:35:13,264 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:13,265 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:13,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:13,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:13,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:13,270 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:13,271 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:13,271 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:13,271 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:13,275 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 11:35:13,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:35:13,294 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 11:35:13,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1ca97adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:13, skipping insertion in model container [2025-03-17 11:35:13,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:35:13,295 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-17 11:35:13,296 INFO L158 Benchmark]: Toolchain (without parser) took 455.17ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 83.0MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 11:35:13,297 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 201.3MB. Free memory is still 115.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:35:13,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.59ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 83.0MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 11:35:13,298 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 201.3MB. Free memory is still 115.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.59ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 83.0MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 769]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd259ad1e1e9b7f6e2ebd2858541cc7ac07d30ed5cbee2b9de70c1db1c5b700e --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:35:14,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:35:15,001 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-17 11:35:15,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:35:15,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:35:15,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:35:15,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:35:15,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:35:15,030 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:35:15,030 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:35:15,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:35:15,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:35:15,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:35:15,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:35:15,030 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:35:15,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:35:15,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:35:15,031 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:35:15,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:35:15,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:35:15,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:35:15,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:35:15,031 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:35:15,031 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:35:15,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:35:15,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:35:15,031 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:35:15,032 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 11:35:15,032 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 11:35:15,032 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:35:15,032 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:35:15,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:35:15,032 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:35:15,032 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:35:15,032 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:35:15,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:35:15,032 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:35:15,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:35:15,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:35:15,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:35:15,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:35:15,033 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 11:35:15,033 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 11:35:15,033 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:35:15,033 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:35:15,033 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:35:15,033 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:35:15,033 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 -> bd259ad1e1e9b7f6e2ebd2858541cc7ac07d30ed5cbee2b9de70c1db1c5b700e [2025-03-17 11:35:15,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:35:15,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:35:15,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:35:15,281 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:35:15,281 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:35:15,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i [2025-03-17 11:35:16,414 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e38c82cbb/819835141e2c41e98594ad76e558bec0/FLAG1e248c59b [2025-03-17 11:35:16,659 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:35:16,660 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i [2025-03-17 11:35:16,678 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e38c82cbb/819835141e2c41e98594ad76e558bec0/FLAG1e248c59b [2025-03-17 11:35:16,980 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e38c82cbb/819835141e2c41e98594ad76e558bec0 [2025-03-17 11:35:16,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:35:16,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:35:16,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:35:16,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:35:16,988 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:35:16,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:35:16" (1/1) ... [2025-03-17 11:35:16,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12216499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:16, skipping insertion in model container [2025-03-17 11:35:16,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:35:16" (1/1) ... [2025-03-17 11:35:17,021 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:35:17,337 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 11:35:17,362 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 11:35:17,366 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 11:35:17,371 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 11:35:17,375 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 11:35:17,398 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 11:35:17,399 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 11:35:17,404 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 11:35:17,408 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 11:35:17,421 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 11:35:17,422 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 11:35:17,423 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 11:35:17,424 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 11:35:17,426 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 11:35:17,427 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 11:35:17,430 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 11:35:17,430 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 11:35:17,431 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 11:35:17,431 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 11:35:17,435 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 11:35:17,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:35:17,453 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-17 11:35:17,461 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:35:17,493 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 11:35:17,508 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 11:35:17,509 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 11:35:17,513 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 11:35:17,516 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 11:35:17,536 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 11:35:17,540 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 11:35:17,543 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 11:35:17,547 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 11:35:17,555 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:17,556 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:17,557 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 11:35:17,559 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 11:35:17,560 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:17,560 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:17,563 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 11:35:17,563 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 11:35:17,563 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 11:35:17,564 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:35:17,565 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 11:35:17,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:35:17,573 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:35:17,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:35:17,696 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:35:17,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17 WrapperNode [2025-03-17 11:35:17,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:35:17,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:35:17,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:35:17,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:35:17,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (1/1) ... [2025-03-17 11:35:17,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (1/1) ... [2025-03-17 11:35:17,808 INFO L138 Inliner]: procedures = 179, calls = 435, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1414 [2025-03-17 11:35:17,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:35:17,809 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:35:17,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:35:17,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:35:17,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (1/1) ... [2025-03-17 11:35:17,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (1/1) ... [2025-03-17 11:35:17,830 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (1/1) ... [2025-03-17 11:35:17,922 INFO L175 MemorySlicer]: Split 403 memory accesses to 2 slices as follows [2, 401]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 98 writes are split as follows [0, 98]. [2025-03-17 11:35:17,923 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (1/1) ... [2025-03-17 11:35:17,923 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (1/1) ... [2025-03-17 11:35:17,951 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (1/1) ... [2025-03-17 11:35:17,954 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (1/1) ... [2025-03-17 11:35:17,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (1/1) ... [2025-03-17 11:35:17,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (1/1) ... [2025-03-17 11:35:17,966 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:35:17,967 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:35:17,967 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:35:17,967 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:35:17,968 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (1/1) ... [2025-03-17 11:35:17,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:35:17,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:17,999 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 11:35:18,004 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 11:35:18,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-17 11:35:18,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-17 11:35:18,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-17 11:35:18,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-17 11:35:18,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 11:35:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 11:35:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 11:35:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 11:35:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 11:35:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 11:35:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 11:35:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:35:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 11:35:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 11:35:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 11:35:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 11:35:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 11:35:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-17 11:35:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-17 11:35:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 11:35:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-17 11:35:18,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:35:18,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:35:18,257 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:35:18,258 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:35:31,504 INFO L? ?]: Removed 207 outVars from TransFormulas that were not future-live. [2025-03-17 11:35:31,505 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:35:31,522 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:35:31,522 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:35:31,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:35:31 BoogieIcfgContainer [2025-03-17 11:35:31,523 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:35:31,525 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:35:31,525 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:35:31,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:35:31,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:35:16" (1/3) ... [2025-03-17 11:35:31,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2c1902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:35:31, skipping insertion in model container [2025-03-17 11:35:31,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:35:17" (2/3) ... [2025-03-17 11:35:31,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2c1902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:35:31, skipping insertion in model container [2025-03-17 11:35:31,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:35:31" (3/3) ... [2025-03-17 11:35:31,536 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test4-3.i [2025-03-17 11:35:31,547 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:35:31,549 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test4-3.i that has 4 procedures, 263 locations, 1 initial locations, 43 loop locations, and 2 error locations. [2025-03-17 11:35:31,580 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:35:31,589 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;@6fbd034e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:35:31,590 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 11:35:31,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 238 states have (on average 1.6680672268907564) internal successors, (397), 250 states have internal predecessors, (397), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-17 11:35:31,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 11:35:31,600 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:31,602 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:31,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:31,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:31,607 INFO L85 PathProgramCache]: Analyzing trace with hash -51630635, now seen corresponding path program 1 times [2025-03-17 11:35:31,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:31,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [526567425] [2025-03-17 11:35:31,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:31,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:31,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:31,620 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 11:35:31,621 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 11:35:31,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 11:35:31,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 11:35:31,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:31,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:31,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 11:35:31,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:31,899 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 11:35:31,900 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:31,900 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:31,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526567425] [2025-03-17 11:35:31,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526567425] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:31,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:31,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 11:35:31,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455777511] [2025-03-17 11:35:31,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:31,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:35:31,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:31,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:35:31,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:35:31,928 INFO L87 Difference]: Start difference. First operand has 259 states, 238 states have (on average 1.6680672268907564) internal successors, (397), 250 states have internal predecessors, (397), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 11:35:36,037 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 11:35:40,090 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 11:35:40,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:40,685 INFO L93 Difference]: Finished difference Result 332 states and 463 transitions. [2025-03-17 11:35:40,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:35:40,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2025-03-17 11:35:40,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:40,701 INFO L225 Difference]: With dead ends: 332 [2025-03-17 11:35:40,701 INFO L226 Difference]: Without dead ends: 329 [2025-03-17 11:35:40,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 11:35:40,704 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 84 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:40,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 708 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2025-03-17 11:35:40,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2025-03-17 11:35:40,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 282. [2025-03-17 11:35:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 252 states have (on average 1.3650793650793651) internal successors, (344), 273 states have internal predecessors, (344), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 8 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-17 11:35:40,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 396 transitions. [2025-03-17 11:35:40,736 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 396 transitions. Word has length 7 [2025-03-17 11:35:40,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:40,736 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 396 transitions. [2025-03-17 11:35:40,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 11:35:40,736 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 396 transitions. [2025-03-17 11:35:40,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-17 11:35:40,737 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:40,737 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:40,743 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 11:35:40,937 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 11:35:40,938 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:40,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:40,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1356629289, now seen corresponding path program 1 times [2025-03-17 11:35:40,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:40,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101286953] [2025-03-17 11:35:40,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:40,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:40,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:40,940 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 11:35:40,941 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 11:35:41,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 11:35:41,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 11:35:41,081 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:41,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:41,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:35:41,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:41,129 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 11:35:41,129 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:41,129 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:41,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101286953] [2025-03-17 11:35:41,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101286953] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:41,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:41,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:35:41,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281221237] [2025-03-17 11:35:41,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:41,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:35:41,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:41,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:35:41,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:41,133 INFO L87 Difference]: Start difference. First operand 282 states and 396 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 11:35:45,751 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 11:35:49,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:35:54,900 WARN L539 Checker$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 11:35:55,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:55,308 INFO L93 Difference]: Finished difference Result 380 states and 511 transitions. [2025-03-17 11:35:55,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:35:55,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 9 [2025-03-17 11:35:55,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:55,312 INFO L225 Difference]: With dead ends: 380 [2025-03-17 11:35:55,312 INFO L226 Difference]: Without dead ends: 380 [2025-03-17 11:35:55,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 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 11:35:55,313 INFO L435 NwaCegarLoop]: 344 mSDtfsCounter, 151 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:55,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 964 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 3 Unknown, 0 Unchecked, 14.2s Time] [2025-03-17 11:35:55,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2025-03-17 11:35:55,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2025-03-17 11:35:55,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 357 states have (on average 1.3249299719887955) internal successors, (473), 368 states have internal predecessors, (473), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 11:35:55,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 511 transitions. [2025-03-17 11:35:55,331 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 511 transitions. Word has length 9 [2025-03-17 11:35:55,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:55,331 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 511 transitions. [2025-03-17 11:35:55,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 11:35:55,332 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 511 transitions. [2025-03-17 11:35:55,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-17 11:35:55,332 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:55,332 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:55,339 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 11:35:55,532 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 11:35:55,533 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:55,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:55,533 INFO L85 PathProgramCache]: Analyzing trace with hash -25027092, now seen corresponding path program 1 times [2025-03-17 11:35:55,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:55,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2103941896] [2025-03-17 11:35:55,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:55,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:55,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:55,535 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 11:35:55,537 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 11:35:55,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 11:35:55,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 11:35:55,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:55,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:55,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:35:55,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:55,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:35:55,737 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:55,737 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:55,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103941896] [2025-03-17 11:35:55,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103941896] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:55,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:55,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:35:55,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319300840] [2025-03-17 11:35:55,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:55,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:35:55,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:55,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:35:55,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:55,738 INFO L87 Difference]: Start difference. First operand 380 states and 511 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:35:59,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:36:04,194 WARN L539 Checker$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 11:36:06,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:06,865 INFO L93 Difference]: Finished difference Result 430 states and 575 transitions. [2025-03-17 11:36:06,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:36:06,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2025-03-17 11:36:06,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:06,870 INFO L225 Difference]: With dead ends: 430 [2025-03-17 11:36:06,870 INFO L226 Difference]: Without dead ends: 426 [2025-03-17 11:36:06,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:36:06,871 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 119 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:06,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 936 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2025-03-17 11:36:06,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2025-03-17 11:36:06,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 374. [2025-03-17 11:36:06,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 351 states have (on average 1.3219373219373218) internal successors, (464), 362 states have internal predecessors, (464), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 11:36:06,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 502 transitions. [2025-03-17 11:36:06,894 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 502 transitions. Word has length 21 [2025-03-17 11:36:06,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:06,894 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 502 transitions. [2025-03-17 11:36:06,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:36:06,894 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 502 transitions. [2025-03-17 11:36:06,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-17 11:36:06,899 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:06,899 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:06,907 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 11:36:07,099 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 11:36:07,100 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:07,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:07,100 INFO L85 PathProgramCache]: Analyzing trace with hash 478703163, now seen corresponding path program 1 times [2025-03-17 11:36:07,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:07,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [331474491] [2025-03-17 11:36:07,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:07,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:07,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:07,106 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 11:36:07,107 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 11:36:07,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 11:36:07,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 11:36:07,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:07,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:07,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:36:07,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:07,742 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 11:36:07,742 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:36:07,742 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:07,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331474491] [2025-03-17 11:36:07,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331474491] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:36:07,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:36:07,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:36:07,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364366959] [2025-03-17 11:36:07,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:36:07,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:36:07,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:07,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:36:07,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:36:07,744 INFO L87 Difference]: Start difference. First operand 374 states and 502 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 11:36:07,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:07,878 INFO L93 Difference]: Finished difference Result 394 states and 512 transitions. [2025-03-17 11:36:07,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:36:07,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 139 [2025-03-17 11:36:07,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:07,880 INFO L225 Difference]: With dead ends: 394 [2025-03-17 11:36:07,880 INFO L226 Difference]: Without dead ends: 394 [2025-03-17 11:36:07,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 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 11:36:07,881 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 23 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:07,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 933 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:36:07,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2025-03-17 11:36:07,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 392. [2025-03-17 11:36:07,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 369 states have (on average 1.2791327913279134) internal successors, (472), 380 states have internal predecessors, (472), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 11:36:07,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 510 transitions. [2025-03-17 11:36:07,892 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 510 transitions. Word has length 139 [2025-03-17 11:36:07,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:07,893 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 510 transitions. [2025-03-17 11:36:07,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 11:36:07,893 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 510 transitions. [2025-03-17 11:36:07,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-17 11:36:07,895 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:07,895 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:07,910 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 11:36:08,095 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 11:36:08,096 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:08,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:08,096 INFO L85 PathProgramCache]: Analyzing trace with hash -747542628, now seen corresponding path program 1 times [2025-03-17 11:36:08,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:08,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269734619] [2025-03-17 11:36:08,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:08,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:08,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:08,100 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 11:36:08,101 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 11:36:08,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 11:36:08,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 11:36:08,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:08,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:08,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:36:08,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 11:36:08,677 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:36:08,677 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:08,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269734619] [2025-03-17 11:36:08,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269734619] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:36:08,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:36:08,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:36:08,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111118007] [2025-03-17 11:36:08,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:36:08,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:36:08,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:08,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:36:08,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:36:08,678 INFO L87 Difference]: Start difference. First operand 392 states and 510 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:36:08,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:08,794 INFO L93 Difference]: Finished difference Result 432 states and 550 transitions. [2025-03-17 11:36:08,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:36:08,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 139 [2025-03-17 11:36:08,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:08,797 INFO L225 Difference]: With dead ends: 432 [2025-03-17 11:36:08,797 INFO L226 Difference]: Without dead ends: 432 [2025-03-17 11:36:08,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 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 11:36:08,799 INFO L435 NwaCegarLoop]: 319 mSDtfsCounter, 8 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 623 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 11:36:08,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 623 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:36:08,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2025-03-17 11:36:08,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2025-03-17 11:36:08,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 409 states have (on average 1.2518337408312958) internal successors, (512), 420 states have internal predecessors, (512), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 11:36:08,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 550 transitions. [2025-03-17 11:36:08,809 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 550 transitions. Word has length 139 [2025-03-17 11:36:08,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:08,811 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 550 transitions. [2025-03-17 11:36:08,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:36:08,811 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 550 transitions. [2025-03-17 11:36:08,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-17 11:36:08,814 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:08,814 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:08,831 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 11:36:09,015 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 11:36:09,015 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:09,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:09,016 INFO L85 PathProgramCache]: Analyzing trace with hash -848454595, now seen corresponding path program 1 times [2025-03-17 11:36:09,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:09,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557514054] [2025-03-17 11:36:09,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:09,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:09,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:09,018 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 11:36:09,020 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 11:36:09,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 11:36:09,522 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 11:36:09,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:09,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:09,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:36:09,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 11:36:09,906 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:36:09,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:09,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557514054] [2025-03-17 11:36:09,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557514054] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:36:09,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:36:09,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:36:09,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255542793] [2025-03-17 11:36:09,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:36:09,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:36:09,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:09,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:36:09,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:36:09,907 INFO L87 Difference]: Start difference. First operand 432 states and 550 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 11:36:14,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:36:18,266 WARN L539 Checker$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 11:36:22,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:36:26,637 WARN L539 Checker$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 11:36:33,978 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 11:36:34,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:34,655 INFO L93 Difference]: Finished difference Result 454 states and 591 transitions. [2025-03-17 11:36:34,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:36:34,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 139 [2025-03-17 11:36:34,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:34,658 INFO L225 Difference]: With dead ends: 454 [2025-03-17 11:36:34,658 INFO L226 Difference]: Without dead ends: 454 [2025-03-17 11:36:34,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 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 11:36:34,658 INFO L435 NwaCegarLoop]: 403 mSDtfsCounter, 302 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:34,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 786 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 5 Unknown, 0 Unchecked, 24.7s Time] [2025-03-17 11:36:34,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2025-03-17 11:36:34,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 433. [2025-03-17 11:36:34,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 410 states have (on average 1.248780487804878) internal successors, (512), 421 states have internal predecessors, (512), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 11:36:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 550 transitions. [2025-03-17 11:36:34,671 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 550 transitions. Word has length 139 [2025-03-17 11:36:34,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:34,672 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 550 transitions. [2025-03-17 11:36:34,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 11:36:34,672 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 550 transitions. [2025-03-17 11:36:34,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-17 11:36:34,674 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:34,674 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:34,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 11:36:34,874 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 11:36:34,875 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:34,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:34,876 INFO L85 PathProgramCache]: Analyzing trace with hash 112982417, now seen corresponding path program 1 times [2025-03-17 11:36:34,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:34,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267964171] [2025-03-17 11:36:34,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:34,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:34,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:34,878 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 11:36:34,884 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 11:36:35,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-17 11:36:35,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-17 11:36:35,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:35,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:35,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:36:35,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:35,424 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 11:36:35,424 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:36:35,424 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:35,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267964171] [2025-03-17 11:36:35,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267964171] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:36:35,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:36:35,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:36:35,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940630760] [2025-03-17 11:36:35,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:36:35,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:36:35,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:35,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:36:35,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:36:35,426 INFO L87 Difference]: Start difference. First operand 433 states and 550 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 11:36:35,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:35,505 INFO L93 Difference]: Finished difference Result 409 states and 512 transitions. [2025-03-17 11:36:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:36:35,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 141 [2025-03-17 11:36:35,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:35,507 INFO L225 Difference]: With dead ends: 409 [2025-03-17 11:36:35,507 INFO L226 Difference]: Without dead ends: 409 [2025-03-17 11:36:35,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 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 11:36:35,508 INFO L435 NwaCegarLoop]: 314 mSDtfsCounter, 27 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:35,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 930 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:36:35,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2025-03-17 11:36:35,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2025-03-17 11:36:35,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 386 states have (on average 1.2279792746113989) internal successors, (474), 397 states have internal predecessors, (474), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 11:36:35,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 512 transitions. [2025-03-17 11:36:35,518 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 512 transitions. Word has length 141 [2025-03-17 11:36:35,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:35,518 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 512 transitions. [2025-03-17 11:36:35,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 11:36:35,518 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 512 transitions. [2025-03-17 11:36:35,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-17 11:36:35,519 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:35,519 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:35,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 11:36:35,719 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 11:36:35,720 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:35,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:35,720 INFO L85 PathProgramCache]: Analyzing trace with hash 874835114, now seen corresponding path program 1 times [2025-03-17 11:36:35,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:35,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [932075173] [2025-03-17 11:36:35,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:35,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:35,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:35,722 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 11:36:35,723 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 11:36:36,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-17 11:36:36,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-17 11:36:36,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:36,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:36,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:36:36,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 11:36:36,324 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:36:36,324 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:36,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932075173] [2025-03-17 11:36:36,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932075173] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:36:36,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:36:36,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:36:36,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89746853] [2025-03-17 11:36:36,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:36:36,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:36:36,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:36,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:36:36,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:36:36,325 INFO L87 Difference]: Start difference. First operand 409 states and 512 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:36:36,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:36,426 INFO L93 Difference]: Finished difference Result 375 states and 456 transitions. [2025-03-17 11:36:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:36:36,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 141 [2025-03-17 11:36:36,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:36,427 INFO L225 Difference]: With dead ends: 375 [2025-03-17 11:36:36,427 INFO L226 Difference]: Without dead ends: 375 [2025-03-17 11:36:36,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 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 11:36:36,428 INFO L435 NwaCegarLoop]: 300 mSDtfsCounter, 32 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 886 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 11:36:36,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 886 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:36:36,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-03-17 11:36:36,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2025-03-17 11:36:36,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 352 states have (on average 1.1875) internal successors, (418), 363 states have internal predecessors, (418), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 11:36:36,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 456 transitions. [2025-03-17 11:36:36,436 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 456 transitions. Word has length 141 [2025-03-17 11:36:36,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:36,437 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 456 transitions. [2025-03-17 11:36:36,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:36:36,437 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 456 transitions. [2025-03-17 11:36:36,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-17 11:36:36,438 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:36,438 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:36,455 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 11:36:36,639 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 11:36:36,639 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:36,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:36,640 INFO L85 PathProgramCache]: Analyzing trace with hash 422782915, now seen corresponding path program 1 times [2025-03-17 11:36:36,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:36,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579330957] [2025-03-17 11:36:36,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:36,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:36,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:36,642 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 11:36:36,644 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 11:36:36,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-17 11:36:37,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-17 11:36:37,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:37,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:37,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:36:37,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:37,190 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 11:36:37,190 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:36:37,191 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:37,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579330957] [2025-03-17 11:36:37,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579330957] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:36:37,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:36:37,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:36:37,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948553474] [2025-03-17 11:36:37,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:36:37,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:36:37,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:37,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:36:37,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:36:37,193 INFO L87 Difference]: Start difference. First operand 375 states and 456 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:36:37,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:37,290 INFO L93 Difference]: Finished difference Result 378 states and 462 transitions. [2025-03-17 11:36:37,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:36:37,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 141 [2025-03-17 11:36:37,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:37,294 INFO L225 Difference]: With dead ends: 378 [2025-03-17 11:36:37,294 INFO L226 Difference]: Without dead ends: 378 [2025-03-17 11:36:37,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 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 11:36:37,295 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 0 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:37,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 944 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:36:37,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2025-03-17 11:36:37,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2025-03-17 11:36:37,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 354 states have (on average 1.189265536723164) internal successors, (421), 366 states have internal predecessors, (421), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2025-03-17 11:36:37,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 462 transitions. [2025-03-17 11:36:37,301 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 462 transitions. Word has length 141 [2025-03-17 11:36:37,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:37,302 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 462 transitions. [2025-03-17 11:36:37,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:36:37,302 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 462 transitions. [2025-03-17 11:36:37,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-03-17 11:36:37,303 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:37,303 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:37,319 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 11:36:37,505 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 11:36:37,512 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:37,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:37,514 INFO L85 PathProgramCache]: Analyzing trace with hash 426690107, now seen corresponding path program 1 times [2025-03-17 11:36:37,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:37,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1289682897] [2025-03-17 11:36:37,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:37,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:37,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:37,527 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 11:36:37,531 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 11:36:37,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-03-17 11:36:38,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-03-17 11:36:38,081 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:38,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:38,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:36:38,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-17 11:36:38,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:36:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-17 11:36:38,730 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:38,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289682897] [2025-03-17 11:36:38,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289682897] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:36:38,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:36:38,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2025-03-17 11:36:38,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31416493] [2025-03-17 11:36:38,730 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:36:38,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:36:38,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:38,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:36:38,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:36:38,732 INFO L87 Difference]: Start difference. First operand 378 states and 462 transitions. Second operand has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 11:36:39,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:39,163 INFO L93 Difference]: Finished difference Result 734 states and 886 transitions. [2025-03-17 11:36:39,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:36:39,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 145 [2025-03-17 11:36:39,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:39,167 INFO L225 Difference]: With dead ends: 734 [2025-03-17 11:36:39,167 INFO L226 Difference]: Without dead ends: 734 [2025-03-17 11:36:39,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:36:39,168 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 771 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:39,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1358 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 11:36:39,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2025-03-17 11:36:39,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 734. [2025-03-17 11:36:39,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 701 states have (on average 1.1726105563480742) internal successors, (822), 713 states have internal predecessors, (822), 28 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (36), 19 states have call predecessors, (36), 28 states have call successors, (36) [2025-03-17 11:36:39,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 886 transitions. [2025-03-17 11:36:39,184 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 886 transitions. Word has length 145 [2025-03-17 11:36:39,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:39,184 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 886 transitions. [2025-03-17 11:36:39,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.666666666666664) internal successors, (238), 6 states have internal predecessors, (238), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 11:36:39,184 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 886 transitions. [2025-03-17 11:36:39,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2025-03-17 11:36:39,189 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:39,190 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:39,213 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 11:36:39,390 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 11:36:39,391 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:39,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:39,391 INFO L85 PathProgramCache]: Analyzing trace with hash 663007290, now seen corresponding path program 1 times [2025-03-17 11:36:39,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:39,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261125609] [2025-03-17 11:36:39,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:39,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:39,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:39,395 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 11:36:39,396 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 11:36:39,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 451 statements into 1 equivalence classes. [2025-03-17 11:36:40,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 451 of 451 statements. [2025-03-17 11:36:40,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:40,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:40,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 2257 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:36:40,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:40,718 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 140 proven. 1 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2025-03-17 11:36:40,718 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:36:40,853 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 112 proven. 13 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2025-03-17 11:36:40,853 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:40,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261125609] [2025-03-17 11:36:40,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261125609] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:36:40,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:36:40,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-17 11:36:40,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610763038] [2025-03-17 11:36:40,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:36:40,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 11:36:40,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:40,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 11:36:40,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 11:36:40,856 INFO L87 Difference]: Start difference. First operand 734 states and 886 transitions. Second operand has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-17 11:36:41,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:41,015 INFO L93 Difference]: Finished difference Result 745 states and 917 transitions. [2025-03-17 11:36:41,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:36:41,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 451 [2025-03-17 11:36:41,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:41,018 INFO L225 Difference]: With dead ends: 745 [2025-03-17 11:36:41,019 INFO L226 Difference]: Without dead ends: 745 [2025-03-17 11:36:41,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 903 GetRequests, 894 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 11:36:41,020 INFO L435 NwaCegarLoop]: 315 mSDtfsCounter, 4 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:41,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1870 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:36:41,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2025-03-17 11:36:41,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 743. [2025-03-17 11:36:41,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 709 states have (on average 1.1791255289139633) internal successors, (836), 721 states have internal predecessors, (836), 28 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (44), 19 states have call predecessors, (44), 28 states have call successors, (44) [2025-03-17 11:36:41,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 908 transitions. [2025-03-17 11:36:41,036 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 908 transitions. Word has length 451 [2025-03-17 11:36:41,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:41,036 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 908 transitions. [2025-03-17 11:36:41,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-17 11:36:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 908 transitions. [2025-03-17 11:36:41,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2025-03-17 11:36:41,042 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:41,042 INFO L218 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:41,089 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 11:36:41,242 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 11:36:41,243 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:41,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:41,243 INFO L85 PathProgramCache]: Analyzing trace with hash -2020610046, now seen corresponding path program 2 times [2025-03-17 11:36:41,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:41,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312493831] [2025-03-17 11:36:41,245 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:36:41,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:41,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:41,247 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 11:36:41,248 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 11:36:41,839 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 459 statements into 2 equivalence classes. [2025-03-17 11:36:42,437 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 459 of 459 statements. [2025-03-17 11:36:42,438 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 11:36:42,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:42,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 2345 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:36:42,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:42,607 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 154 proven. 3 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2025-03-17 11:36:42,607 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:36:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 106 proven. 48 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2025-03-17 11:36:42,796 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:42,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312493831] [2025-03-17 11:36:42,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312493831] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:36:42,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:36:42,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-17 11:36:42,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898660457] [2025-03-17 11:36:42,796 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:36:42,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:36:42,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:42,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:36:42,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:36:42,799 INFO L87 Difference]: Start difference. First operand 743 states and 908 transitions. Second operand has 10 states, 10 states have (on average 17.8) internal successors, (178), 10 states have internal predecessors, (178), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 11:36:43,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:43,101 INFO L93 Difference]: Finished difference Result 751 states and 918 transitions. [2025-03-17 11:36:43,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 11:36:43,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.8) internal successors, (178), 10 states have internal predecessors, (178), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 459 [2025-03-17 11:36:43,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:43,104 INFO L225 Difference]: With dead ends: 751 [2025-03-17 11:36:43,104 INFO L226 Difference]: Without dead ends: 749 [2025-03-17 11:36:43,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 908 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 11:36:43,104 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 5 mSDsluCounter, 1866 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:43,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2183 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 11:36:43,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2025-03-17 11:36:43,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 747. [2025-03-17 11:36:43,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 713 states have (on average 1.1809256661991585) internal successors, (842), 725 states have internal predecessors, (842), 28 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (36), 19 states have call predecessors, (36), 28 states have call successors, (36) [2025-03-17 11:36:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 906 transitions. [2025-03-17 11:36:43,116 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 906 transitions. Word has length 459 [2025-03-17 11:36:43,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:43,116 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 906 transitions. [2025-03-17 11:36:43,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.8) internal successors, (178), 10 states have internal predecessors, (178), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 11:36:43,116 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 906 transitions. [2025-03-17 11:36:43,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2025-03-17 11:36:43,118 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:43,118 INFO L218 NwaCegarLoop]: trace histogram [20, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:43,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-17 11:36:43,319 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 11:36:43,319 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:43,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:43,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1581973118, now seen corresponding path program 3 times [2025-03-17 11:36:43,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:43,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644667399] [2025-03-17 11:36:43,321 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:36:43,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:43,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:43,323 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 11:36:43,324 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 11:36:43,953 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 467 statements into 16 equivalence classes.