./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.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_test3-1.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 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:34:49,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:34:49,183 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-17 11:34:49,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:34:49,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:34:49,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:34:49,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:34:49,213 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:34:49,213 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:34:49,213 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:34:49,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:34:49,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:34:49,214 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:34:49,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:34:49,214 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:34:49,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:34:49,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:34:49,215 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:34:49,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:34:49,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:34:49,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:34:49,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:34:49,215 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:34:49,215 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:34:49,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:34:49,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:34:49,216 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:34:49,216 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:34:49,216 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:34:49,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:34:49,216 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:34:49,216 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:34:49,216 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:34:49,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:34:49,217 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:34:49,217 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:34:49,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:34:49,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:34:49,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:34:49,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:34:49,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:34:49,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:34:49,217 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:34:49,217 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:34:49,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:34:49,217 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 -> 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c [2025-03-17 11:34:49,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:34:49,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:34:49,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:34:49,447 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:34:49,447 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:34:49,448 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2025-03-17 11:34:50,566 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36554d092/c584d6ff984745fa9aea7117658710dc/FLAGd5cc65d8c [2025-03-17 11:34:50,898 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:34:50,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2025-03-17 11:34:50,914 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36554d092/c584d6ff984745fa9aea7117658710dc/FLAGd5cc65d8c [2025-03-17 11:34:50,929 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36554d092/c584d6ff984745fa9aea7117658710dc [2025-03-17 11:34:50,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:34:50,939 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:34:50,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:34:50,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:34:50,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:34:50,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:34:50" (1/1) ... [2025-03-17 11:34:50,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a964a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:50, skipping insertion in model container [2025-03-17 11:34:50,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:34:50" (1/1) ... [2025-03-17 11:34:50,977 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:34:51,186 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 11:34:51,208 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 11:34:51,212 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 11:34:51,214 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:51,220 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 11:34:51,245 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 11:34:51,245 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 11:34:51,246 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 11:34:51,247 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 11:34:51,249 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 11:34:51,251 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 11:34:51,251 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 11:34:51,251 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 11:34:51,254 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 11:34:51,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:34:51,269 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 11:34:51,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@49965ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:51, skipping insertion in model container [2025-03-17 11:34:51,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:34:51,269 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-17 11:34:51,270 INFO L158 Benchmark]: Toolchain (without parser) took 331.10ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 91.6MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 11:34:51,271 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:34:51,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.11ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 91.6MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 11:34:51,273 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.11ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 91.6MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: 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_test3-1.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 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:34:52,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:34:52,873 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-17 11:34:52,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:34:52,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:34:52,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:34:52,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:34:52,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:34:52,895 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:34:52,895 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:34:52,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:34:52,895 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:34:52,895 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:34:52,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 11:34:52,896 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:34:52,897 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:34:52,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:34:52,897 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:34:52,897 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 -> 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c [2025-03-17 11:34:53,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:34:53,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:34:53,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:34:53,144 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:34:53,144 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:34:53,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2025-03-17 11:34:54,297 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ce23f18b/a509532e1486496f95382e621d39fd2e/FLAGf1daa3db3 [2025-03-17 11:34:54,546 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:34:54,549 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2025-03-17 11:34:54,566 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ce23f18b/a509532e1486496f95382e621d39fd2e/FLAGf1daa3db3 [2025-03-17 11:34:54,862 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ce23f18b/a509532e1486496f95382e621d39fd2e [2025-03-17 11:34:54,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:34:54,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:34:54,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:34:54,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:34:54,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:34:54,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:34:54" (1/1) ... [2025-03-17 11:34:54,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db3a83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:54, skipping insertion in model container [2025-03-17 11:34:54,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:34:54" (1/1) ... [2025-03-17 11:34:54,905 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:34:55,127 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 11:34:55,159 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 11:34:55,162 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 11:34:55,167 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 11:34:55,173 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 11:34:55,197 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 11:34:55,198 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 11:34:55,199 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 11:34:55,199 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 11:34:55,204 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 11:34:55,204 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 11:34:55,205 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 11:34:55,206 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 11:34:55,208 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 11:34:55,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:34:55,223 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-17 11:34:55,239 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:34:55,265 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 11:34:55,276 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 11:34:55,278 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:34:55,279 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 11:34:55,282 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 11:34:55,311 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 11:34:55,311 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 11:34:55,314 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 11:34:55,314 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 11:34:55,315 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 11:34:55,316 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 11:34:55,317 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 11:34:55,317 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 11:34:55,319 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 11:34:55,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:34:55,329 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:34:55,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:34:55,404 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:34:55,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55 WrapperNode [2025-03-17 11:34:55,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:34:55,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:34:55,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:34:55,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:34:55,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (1/1) ... [2025-03-17 11:34:55,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (1/1) ... [2025-03-17 11:34:55,469 INFO L138 Inliner]: procedures = 180, calls = 279, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1005 [2025-03-17 11:34:55,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:34:55,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:34:55,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:34:55,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:34:55,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (1/1) ... [2025-03-17 11:34:55,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (1/1) ... [2025-03-17 11:34:55,483 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (1/1) ... [2025-03-17 11:34:55,551 INFO L175 MemorySlicer]: Split 255 memory accesses to 3 slices as follows [2, 34, 219]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 4, 50]. [2025-03-17 11:34:55,552 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (1/1) ... [2025-03-17 11:34:55,552 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (1/1) ... [2025-03-17 11:34:55,589 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (1/1) ... [2025-03-17 11:34:55,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (1/1) ... [2025-03-17 11:34:55,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (1/1) ... [2025-03-17 11:34:55,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (1/1) ... [2025-03-17 11:34:55,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:34:55,608 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:34:55,610 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:34:55,610 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:34:55,611 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (1/1) ... [2025-03-17 11:34:55,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:34:55,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:55,634 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 11:34:55,636 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 11:34:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-17 11:34:55,652 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 11:34:55,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-17 11:34:55,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 11:34:55,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 11:34:55,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 11:34:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-17 11:34:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:34:55,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:34:55,805 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:34:55,807 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:35:02,645 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L733: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-17 11:35:02,706 INFO L? ?]: Removed 136 outVars from TransFormulas that were not future-live. [2025-03-17 11:35:02,707 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:35:02,720 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:35:02,720 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:35:02,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:35:02 BoogieIcfgContainer [2025-03-17 11:35:02,720 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:35:02,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:35:02,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:35:02,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:35:02,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:34:54" (1/3) ... [2025-03-17 11:35:02,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f51e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:35:02, skipping insertion in model container [2025-03-17 11:35:02,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:55" (2/3) ... [2025-03-17 11:35:02,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72f51e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:35:02, skipping insertion in model container [2025-03-17 11:35:02,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:35:02" (3/3) ... [2025-03-17 11:35:02,728 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test3-1.i [2025-03-17 11:35:02,738 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:35:02,739 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test3-1.i that has 6 procedures, 212 locations, 1 initial locations, 36 loop locations, and 2 error locations. [2025-03-17 11:35:02,765 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:35:02,773 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;@7b03c1d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:35:02,774 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 11:35:02,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 204 states, 188 states have (on average 1.6702127659574468) internal successors, (314), 197 states have internal predecessors, (314), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 11:35:02,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 11:35:02,781 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:02,782 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:02,782 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:02,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:02,785 INFO L85 PathProgramCache]: Analyzing trace with hash -776834510, now seen corresponding path program 1 times [2025-03-17 11:35:02,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:02,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1452807045] [2025-03-17 11:35:02,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:02,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:02,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:02,794 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 11:35:02,794 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 11:35:02,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 11:35:02,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 11:35:02,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:02,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:02,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 11:35:02,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:02,951 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 11:35:02,951 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:02,952 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:02,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452807045] [2025-03-17 11:35:02,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452807045] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:02,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:02,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:35:02,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056952053] [2025-03-17 11:35:02,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:02,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 11:35:02,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:02,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 11:35:02,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 11:35:02,976 INFO L87 Difference]: Start difference. First operand has 204 states, 188 states have (on average 1.6702127659574468) internal successors, (314), 197 states have internal predecessors, (314), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 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 11:35:03,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:03,009 INFO L93 Difference]: Finished difference Result 202 states and 267 transitions. [2025-03-17 11:35:03,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 11:35:03,010 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 11:35:03,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:03,016 INFO L225 Difference]: With dead ends: 202 [2025-03-17 11:35:03,016 INFO L226 Difference]: Without dead ends: 200 [2025-03-17 11:35:03,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 11:35:03,019 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:03,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:35:03,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2025-03-17 11:35:03,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2025-03-17 11:35:03,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 186 states have (on average 1.3279569892473118) internal successors, (247), 193 states have internal predecessors, (247), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 11:35:03,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 265 transitions. [2025-03-17 11:35:03,060 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 265 transitions. Word has length 7 [2025-03-17 11:35:03,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:03,060 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 265 transitions. [2025-03-17 11:35:03,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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 11:35:03,060 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 265 transitions. [2025-03-17 11:35:03,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-17 11:35:03,060 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:03,060 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:03,067 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 11:35:03,265 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 11:35:03,265 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:03,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:03,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1840027229, now seen corresponding path program 1 times [2025-03-17 11:35:03,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:03,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789023798] [2025-03-17 11:35:03,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:03,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:03,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:03,269 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 11:35:03,270 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 11:35:03,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 11:35:03,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 11:35:03,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:03,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:03,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:35:03,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:03,392 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:35:03,393 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:35:03,393 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:35:03,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-03-17 11:35:03,463 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:35:03,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-03-17 11:35:03,478 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 11:35:03,478 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:03,478 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:03,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789023798] [2025-03-17 11:35:03,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789023798] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:03,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:03,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:35:03,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490324319] [2025-03-17 11:35:03,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:03,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:35:03,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:03,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:35:03,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:03,482 INFO L87 Difference]: Start difference. First operand 200 states and 265 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 11:35:03,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:03,956 INFO L93 Difference]: Finished difference Result 384 states and 515 transitions. [2025-03-17 11:35:03,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:35:03,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2025-03-17 11:35:03,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:03,958 INFO L225 Difference]: With dead ends: 384 [2025-03-17 11:35:03,958 INFO L226 Difference]: Without dead ends: 384 [2025-03-17 11:35:03,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:35:03,959 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 230 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:03,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 725 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 11:35:03,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2025-03-17 11:35:03,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 202. [2025-03-17 11:35:03,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 188 states have (on average 1.324468085106383) internal successors, (249), 195 states have internal predecessors, (249), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 11:35:03,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 267 transitions. [2025-03-17 11:35:03,977 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 267 transitions. Word has length 9 [2025-03-17 11:35:03,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:03,977 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 267 transitions. [2025-03-17 11:35:03,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 11:35:03,977 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 267 transitions. [2025-03-17 11:35:03,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-17 11:35:03,980 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:03,980 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:03,986 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 11:35:04,184 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 11:35:04,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:04,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:04,184 INFO L85 PathProgramCache]: Analyzing trace with hash 825141683, now seen corresponding path program 1 times [2025-03-17 11:35:04,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:04,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425938984] [2025-03-17 11:35:04,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:04,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:04,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:04,187 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 11:35:04,188 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 11:35:04,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-17 11:35:04,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-17 11:35:04,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:04,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:04,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:35:04,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:04,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:35:04,634 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:04,634 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:04,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425938984] [2025-03-17 11:35:04,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425938984] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:04,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:04,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:35:04,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175482867] [2025-03-17 11:35:04,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:04,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:35:04,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:04,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:35:04,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:35:04,636 INFO L87 Difference]: Start difference. First operand 202 states and 267 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 11:35:04,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:04,994 INFO L93 Difference]: Finished difference Result 306 states and 405 transitions. [2025-03-17 11:35:04,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:35:04,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 63 [2025-03-17 11:35:04,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:04,995 INFO L225 Difference]: With dead ends: 306 [2025-03-17 11:35:04,995 INFO L226 Difference]: Without dead ends: 306 [2025-03-17 11:35:04,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 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 11:35:04,996 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 99 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:04,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 546 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 11:35:04,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2025-03-17 11:35:05,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 303. [2025-03-17 11:35:05,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 289 states have (on average 1.328719723183391) internal successors, (384), 296 states have internal predecessors, (384), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 11:35:05,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 402 transitions. [2025-03-17 11:35:05,016 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 402 transitions. Word has length 63 [2025-03-17 11:35:05,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:05,016 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 402 transitions. [2025-03-17 11:35:05,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 11:35:05,016 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 402 transitions. [2025-03-17 11:35:05,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-03-17 11:35:05,017 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:05,017 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:05,027 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 11:35:05,219 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 11:35:05,219 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:05,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:05,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1269990490, now seen corresponding path program 1 times [2025-03-17 11:35:05,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:05,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883887827] [2025-03-17 11:35:05,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:05,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:05,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:05,223 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 11:35:05,224 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 11:35:05,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-17 11:35:05,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-17 11:35:05,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:05,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:05,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:35:05,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 11:35:05,555 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:05,555 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:05,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883887827] [2025-03-17 11:35:05,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883887827] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:05,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:05,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:35:05,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994379946] [2025-03-17 11:35:05,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:05,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:35:05,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:05,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:35:05,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:35:05,557 INFO L87 Difference]: Start difference. First operand 303 states and 402 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:05,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:05,635 INFO L93 Difference]: Finished difference Result 343 states and 442 transitions. [2025-03-17 11:35:05,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:35:05,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2025-03-17 11:35:05,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:05,637 INFO L225 Difference]: With dead ends: 343 [2025-03-17 11:35:05,637 INFO L226 Difference]: Without dead ends: 343 [2025-03-17 11:35:05,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 11:35:05,638 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 8 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 475 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 11:35:05,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 475 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:35:05,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2025-03-17 11:35:05,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2025-03-17 11:35:05,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 329 states have (on average 1.2887537993920972) internal successors, (424), 336 states have internal predecessors, (424), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 11:35:05,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 442 transitions. [2025-03-17 11:35:05,645 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 442 transitions. Word has length 78 [2025-03-17 11:35:05,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:05,646 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 442 transitions. [2025-03-17 11:35:05,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:05,646 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 442 transitions. [2025-03-17 11:35:05,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-03-17 11:35:05,647 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:05,647 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:05,658 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 11:35:05,848 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 11:35:05,848 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:05,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:05,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1094357701, now seen corresponding path program 1 times [2025-03-17 11:35:05,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:05,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [596550410] [2025-03-17 11:35:05,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:05,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:05,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:05,851 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 11:35:05,853 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 11:35:06,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-17 11:35:06,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-17 11:35:06,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:06,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:06,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:35:06,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 11:35:06,301 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:06,301 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:06,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596550410] [2025-03-17 11:35:06,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596550410] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:06,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:06,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:35:06,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056601584] [2025-03-17 11:35:06,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:06,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:35:06,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:06,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:35:06,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:06,302 INFO L87 Difference]: Start difference. First operand 343 states and 442 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:10,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:35:14,601 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 11:35:16,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:16,445 INFO L93 Difference]: Finished difference Result 439 states and 575 transitions. [2025-03-17 11:35:16,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:35:16,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2025-03-17 11:35:16,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:16,451 INFO L225 Difference]: With dead ends: 439 [2025-03-17 11:35:16,451 INFO L226 Difference]: Without dead ends: 439 [2025-03-17 11:35:16,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 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 11:35:16,451 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 485 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:16,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 496 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2025-03-17 11:35:16,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2025-03-17 11:35:16,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 426. [2025-03-17 11:35:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 412 states have (on average 1.296116504854369) internal successors, (534), 419 states have internal predecessors, (534), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 11:35:16,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 552 transitions. [2025-03-17 11:35:16,460 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 552 transitions. Word has length 78 [2025-03-17 11:35:16,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:16,461 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 552 transitions. [2025-03-17 11:35:16,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 552 transitions. [2025-03-17 11:35:16,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-17 11:35:16,463 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:16,463 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:16,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 11:35:16,663 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 11:35:16,663 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:16,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:16,664 INFO L85 PathProgramCache]: Analyzing trace with hash -417169179, now seen corresponding path program 1 times [2025-03-17 11:35:16,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:16,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142816541] [2025-03-17 11:35:16,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:16,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:16,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:16,668 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 11:35:16,669 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 11:35:16,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-17 11:35:16,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-17 11:35:16,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:16,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:16,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:35:17,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 11:35:17,026 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:17,026 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:17,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142816541] [2025-03-17 11:35:17,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142816541] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:17,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:17,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:35:17,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52714236] [2025-03-17 11:35:17,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:17,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:35:17,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:17,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:35:17,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:17,027 INFO L87 Difference]: Start difference. First operand 426 states and 552 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:17,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:17,159 INFO L93 Difference]: Finished difference Result 392 states and 496 transitions. [2025-03-17 11:35:17,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:35:17,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2025-03-17 11:35:17,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:17,161 INFO L225 Difference]: With dead ends: 392 [2025-03-17 11:35:17,161 INFO L226 Difference]: Without dead ends: 392 [2025-03-17 11:35:17,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:35:17,161 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 32 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 685 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 11:35:17,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 685 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:35:17,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2025-03-17 11:35:17,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2025-03-17 11:35:17,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 378 states have (on average 1.2645502645502646) internal successors, (478), 385 states have internal predecessors, (478), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 11:35:17,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 496 transitions. [2025-03-17 11:35:17,169 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 496 transitions. Word has length 84 [2025-03-17 11:35:17,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:17,169 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 496 transitions. [2025-03-17 11:35:17,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:17,169 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 496 transitions. [2025-03-17 11:35:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-17 11:35:17,170 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:17,170 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:17,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 11:35:17,370 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 11:35:17,371 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:17,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:17,371 INFO L85 PathProgramCache]: Analyzing trace with hash -2083240642, now seen corresponding path program 1 times [2025-03-17 11:35:17,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:17,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1736025096] [2025-03-17 11:35:17,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:17,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:17,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:17,373 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 11:35:17,374 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 11:35:17,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-17 11:35:17,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-17 11:35:17,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:17,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:17,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:35:17,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:17,685 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 11:35:17,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:17,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:17,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736025096] [2025-03-17 11:35:17,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736025096] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:17,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:17,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:35:17,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294284565] [2025-03-17 11:35:17,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:17,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:35:17,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:17,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:35:17,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:17,687 INFO L87 Difference]: Start difference. First operand 392 states and 496 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:17,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:17,722 INFO L93 Difference]: Finished difference Result 395 states and 500 transitions. [2025-03-17 11:35:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:35:17,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2025-03-17 11:35:17,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:17,724 INFO L225 Difference]: With dead ends: 395 [2025-03-17 11:35:17,724 INFO L226 Difference]: Without dead ends: 395 [2025-03-17 11:35:17,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 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 11:35:17,725 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 0 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:17,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 749 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:35:17,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2025-03-17 11:35:17,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2025-03-17 11:35:17,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 380 states have (on average 1.2657894736842106) internal successors, (481), 388 states have internal predecessors, (481), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:35:17,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 500 transitions. [2025-03-17 11:35:17,732 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 500 transitions. Word has length 84 [2025-03-17 11:35:17,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:17,732 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 500 transitions. [2025-03-17 11:35:17,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:17,733 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 500 transitions. [2025-03-17 11:35:17,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-17 11:35:17,738 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:17,738 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:17,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 11:35:17,939 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 11:35:17,939 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:17,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:17,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1381297254, now seen corresponding path program 1 times [2025-03-17 11:35:17,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:17,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [587630211] [2025-03-17 11:35:17,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:17,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:17,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:17,942 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 11:35:17,943 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 11:35:18,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-17 11:35:18,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-17 11:35:18,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:18,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:18,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 11:35:18,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:18,270 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:35:18,271 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:35:18,271 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:35:18,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-03-17 11:35:18,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:35:18,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-03-17 11:35:18,336 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-17 11:35:18,336 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:18,336 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:18,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587630211] [2025-03-17 11:35:18,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587630211] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:18,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:18,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:35:18,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931416635] [2025-03-17 11:35:18,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:18,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:35:18,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:18,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:35:18,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:18,337 INFO L87 Difference]: Start difference. First operand 395 states and 500 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:18,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:18,799 INFO L93 Difference]: Finished difference Result 537 states and 685 transitions. [2025-03-17 11:35:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:35:18,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2025-03-17 11:35:18,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:18,801 INFO L225 Difference]: With dead ends: 537 [2025-03-17 11:35:18,802 INFO L226 Difference]: Without dead ends: 537 [2025-03-17 11:35:18,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:35:18,802 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 201 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:18,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 739 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 11:35:18,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2025-03-17 11:35:18,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 397. [2025-03-17 11:35:18,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 382 states have (on average 1.2643979057591623) internal successors, (483), 390 states have internal predecessors, (483), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:35:18,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 502 transitions. [2025-03-17 11:35:18,816 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 502 transitions. Word has length 86 [2025-03-17 11:35:18,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:18,816 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 502 transitions. [2025-03-17 11:35:18,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:18,816 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 502 transitions. [2025-03-17 11:35:18,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-17 11:35:18,817 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:18,817 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:35:18,833 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 11:35:19,017 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 11:35:19,017 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:19,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:19,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1619838410, now seen corresponding path program 1 times [2025-03-17 11:35:19,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:19,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [844975083] [2025-03-17 11:35:19,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:19,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:19,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:19,023 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 11:35:19,024 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 11:35:19,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-17 11:35:19,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-17 11:35:19,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:19,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:19,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:35:19,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:19,385 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-17 11:35:19,385 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:19,385 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:19,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844975083] [2025-03-17 11:35:19,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844975083] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:19,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:19,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:35:19,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020697511] [2025-03-17 11:35:19,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:19,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:35:19,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:19,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:35:19,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:35:19,386 INFO L87 Difference]: Start difference. First operand 397 states and 502 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:19,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:19,478 INFO L93 Difference]: Finished difference Result 457 states and 562 transitions. [2025-03-17 11:35:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:35:19,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 124 [2025-03-17 11:35:19,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:19,480 INFO L225 Difference]: With dead ends: 457 [2025-03-17 11:35:19,480 INFO L226 Difference]: Without dead ends: 457 [2025-03-17 11:35:19,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 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 11:35:19,480 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 9 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 453 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 11:35:19,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 453 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:35:19,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2025-03-17 11:35:19,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2025-03-17 11:35:19,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 442 states have (on average 1.2285067873303168) internal successors, (543), 450 states have internal predecessors, (543), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:35:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 562 transitions. [2025-03-17 11:35:19,488 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 562 transitions. Word has length 124 [2025-03-17 11:35:19,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:19,488 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 562 transitions. [2025-03-17 11:35:19,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:19,488 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 562 transitions. [2025-03-17 11:35:19,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-17 11:35:19,489 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:19,489 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:35:19,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-17 11:35:19,690 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 11:35:19,690 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:19,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:19,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1743911657, now seen corresponding path program 1 times [2025-03-17 11:35:19,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:19,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118016516] [2025-03-17 11:35:19,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:19,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:19,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:19,693 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 11:35:19,693 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 11:35:19,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-17 11:35:20,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-17 11:35:20,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:20,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:20,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:35:20,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:20,084 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-17 11:35:20,084 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:35:20,084 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:20,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118016516] [2025-03-17 11:35:20,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118016516] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:35:20,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:35:20,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:35:20,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680129688] [2025-03-17 11:35:20,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:35:20,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:35:20,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:20,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:35:20,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:35:20,086 INFO L87 Difference]: Start difference. First operand 457 states and 562 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:20,189 INFO L93 Difference]: Finished difference Result 406 states and 478 transitions. [2025-03-17 11:35:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:35:20,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 124 [2025-03-17 11:35:20,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:20,191 INFO L225 Difference]: With dead ends: 406 [2025-03-17 11:35:20,191 INFO L226 Difference]: Without dead ends: 406 [2025-03-17 11:35:20,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 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 11:35:20,192 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 32 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 652 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 11:35:20,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 652 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:35:20,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2025-03-17 11:35:20,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2025-03-17 11:35:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 391 states have (on average 1.173913043478261) internal successors, (459), 399 states have internal predecessors, (459), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:35:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 478 transitions. [2025-03-17 11:35:20,198 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 478 transitions. Word has length 124 [2025-03-17 11:35:20,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:20,199 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 478 transitions. [2025-03-17 11:35:20,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:35:20,199 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 478 transitions. [2025-03-17 11:35:20,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-17 11:35:20,200 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:20,200 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:35:20,214 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 11:35:20,400 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 11:35:20,400 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:20,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:20,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1415540080, now seen corresponding path program 1 times [2025-03-17 11:35:20,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:20,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804596509] [2025-03-17 11:35:20,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:35:20,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:20,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:20,403 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 11:35:20,404 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 11:35:20,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-17 11:35:20,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-17 11:35:20,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:35:20,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:20,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:35:20,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:20,813 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 11:35:20,813 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:35:20,908 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 11:35:20,908 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:20,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804596509] [2025-03-17 11:35:20,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804596509] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:35:20,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:35:20,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-17 11:35:20,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327042472] [2025-03-17 11:35:20,908 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:35:20,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 11:35:20,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:20,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 11:35:20,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 11:35:20,909 INFO L87 Difference]: Start difference. First operand 406 states and 478 transitions. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:35:21,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:21,026 INFO L93 Difference]: Finished difference Result 417 states and 495 transitions. [2025-03-17 11:35:21,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:35:21,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 124 [2025-03-17 11:35:21,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:21,028 INFO L225 Difference]: With dead ends: 417 [2025-03-17 11:35:21,028 INFO L226 Difference]: Without dead ends: 417 [2025-03-17 11:35:21,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 240 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 11:35:21,029 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 5 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:21,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1422 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:35:21,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2025-03-17 11:35:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 415. [2025-03-17 11:35:21,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 399 states have (on average 1.1854636591478698) internal successors, (473), 407 states have internal predecessors, (473), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-17 11:35:21,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 493 transitions. [2025-03-17 11:35:21,036 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 493 transitions. Word has length 124 [2025-03-17 11:35:21,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:21,036 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 493 transitions. [2025-03-17 11:35:21,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:35:21,036 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 493 transitions. [2025-03-17 11:35:21,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-17 11:35:21,037 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:21,037 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:35:21,051 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 11:35:21,238 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 11:35:21,238 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:21,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:21,238 INFO L85 PathProgramCache]: Analyzing trace with hash 866289140, now seen corresponding path program 2 times [2025-03-17 11:35:21,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:21,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [462527993] [2025-03-17 11:35:21,239 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:35:21,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:21,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:21,241 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 11:35:21,242 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 11:35:21,502 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 128 statements into 2 equivalence classes. [2025-03-17 11:35:21,681 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 11:35:21,681 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 11:35:21,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:21,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:35:21,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:21,785 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-17 11:35:21,785 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:35:21,958 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-17 11:35:21,959 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:21,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462527993] [2025-03-17 11:35:21,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462527993] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:35:21,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:35:21,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-17 11:35:21,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868986112] [2025-03-17 11:35:21,959 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:35:21,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:35:21,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:21,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:35:21,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:35:21,960 INFO L87 Difference]: Start difference. First operand 415 states and 493 transitions. Second operand has 10 states, 10 states have (on average 12.9) internal successors, (129), 10 states have internal predecessors, (129), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:35:22,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:35:22,290 INFO L93 Difference]: Finished difference Result 423 states and 503 transitions. [2025-03-17 11:35:22,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 11:35:22,290 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.9) internal successors, (129), 10 states have internal predecessors, (129), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 128 [2025-03-17 11:35:22,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:35:22,292 INFO L225 Difference]: With dead ends: 423 [2025-03-17 11:35:22,292 INFO L226 Difference]: Without dead ends: 421 [2025-03-17 11:35:22,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 246 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 11:35:22,292 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 5 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:35:22,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1663 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 11:35:22,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2025-03-17 11:35:22,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 419. [2025-03-17 11:35:22,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 403 states have (on average 1.1885856079404467) internal successors, (479), 411 states have internal predecessors, (479), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:35:22,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 498 transitions. [2025-03-17 11:35:22,301 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 498 transitions. Word has length 128 [2025-03-17 11:35:22,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:35:22,301 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 498 transitions. [2025-03-17 11:35:22,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.9) internal successors, (129), 10 states have internal predecessors, (129), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:35:22,302 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 498 transitions. [2025-03-17 11:35:22,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-17 11:35:22,303 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:35:22,304 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:35:22,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-17 11:35:22,504 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 11:35:22,504 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:35:22,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:35:22,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1724970292, now seen corresponding path program 3 times [2025-03-17 11:35:22,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:35:22,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2083032022] [2025-03-17 11:35:22,505 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:35:22,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:35:22,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:35:22,507 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 11:35:22,508 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 11:35:22,778 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 132 statements into 6 equivalence classes. [2025-03-17 11:35:22,946 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 115 of 132 statements. [2025-03-17 11:35:22,946 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-17 11:35:22,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:35:22,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 11:35:22,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:35:22,968 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:35:22,968 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:35:22,968 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:35:22,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-03-17 11:35:24,339 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:35:24,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 87 [2025-03-17 11:35:24,417 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:35:24,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 74 [2025-03-17 11:35:24,435 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-03-17 11:35:24,435 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:35:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-03-17 11:35:24,925 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:35:24,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083032022] [2025-03-17 11:35:24,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083032022] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:35:24,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:35:24,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2025-03-17 11:35:24,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705922571] [2025-03-17 11:35:24,925 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:35:24,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 11:35:24,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:35:24,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 11:35:24,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-03-17 11:35:24,926 INFO L87 Difference]: Start difference. First operand 419 states and 498 transitions. Second operand has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 3 states have call successors, (5), 3 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 11:35:29,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:35:33,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:35:37,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:35:41,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:35:45,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:35:49,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:35:53,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:35:57,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:36:01,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:36:05,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:36:10,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:36:14,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:36:18,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:36:22,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:36:26,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:36:30,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:36:30,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:30,677 INFO L93 Difference]: Finished difference Result 1071 states and 1279 transitions. [2025-03-17 11:36:30,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 11:36:30,677 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 3 states have call successors, (5), 3 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 132 [2025-03-17 11:36:30,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:30,682 INFO L225 Difference]: With dead ends: 1071 [2025-03-17 11:36:30,682 INFO L226 Difference]: Without dead ends: 1071 [2025-03-17 11:36:30,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2025-03-17 11:36:30,683 INFO L435 NwaCegarLoop]: 311 mSDtfsCounter, 659 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 18 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.6s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:30,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 2466 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 231 Invalid, 16 Unknown, 0 Unchecked, 65.6s Time] [2025-03-17 11:36:30,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2025-03-17 11:36:30,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 627. [2025-03-17 11:36:30,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 607 states have (on average 1.1828665568369028) internal successors, (718), 615 states have internal predecessors, (718), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-17 11:36:30,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 743 transitions. [2025-03-17 11:36:30,696 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 743 transitions. Word has length 132 [2025-03-17 11:36:30,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:30,696 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 743 transitions. [2025-03-17 11:36:30,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 3 states have call successors, (5), 3 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 11:36:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 743 transitions. [2025-03-17 11:36:30,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2025-03-17 11:36:30,698 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:30,698 INFO L218 NwaCegarLoop]: trace histogram [10, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:30,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-17 11:36:30,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:30,899 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:30,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:30,899 INFO L85 PathProgramCache]: Analyzing trace with hash -720365962, now seen corresponding path program 1 times [2025-03-17 11:36:30,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:30,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [149567392] [2025-03-17 11:36:30,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:30,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:30,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:30,902 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:36:30,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-17 11:36:31,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 294 statements into 1 equivalence classes. [2025-03-17 11:36:31,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 294 of 294 statements. [2025-03-17 11:36:31,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:31,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:31,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 1499 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 11:36:31,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:31,788 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 147 proven. 10 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-03-17 11:36:31,788 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:36:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 147 proven. 10 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-03-17 11:36:31,966 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:31,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149567392] [2025-03-17 11:36:31,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149567392] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:36:31,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:36:31,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-03-17 11:36:31,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375734272] [2025-03-17 11:36:31,967 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:36:31,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 11:36:31,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:31,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 11:36:31,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-03-17 11:36:31,968 INFO L87 Difference]: Start difference. First operand 627 states and 743 transitions. Second operand has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 14 states have internal predecessors, (166), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:36:32,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:32,312 INFO L93 Difference]: Finished difference Result 650 states and 778 transitions. [2025-03-17 11:36:32,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-17 11:36:32,314 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 14 states have internal predecessors, (166), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 294 [2025-03-17 11:36:32,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:32,316 INFO L225 Difference]: With dead ends: 650 [2025-03-17 11:36:32,316 INFO L226 Difference]: Without dead ends: 644 [2025-03-17 11:36:32,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2025-03-17 11:36:32,316 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 7 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:32,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1668 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 11:36:32,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2025-03-17 11:36:32,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 635. [2025-03-17 11:36:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 615 states have (on average 1.1886178861788619) internal successors, (731), 623 states have internal predecessors, (731), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-17 11:36:32,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 756 transitions. [2025-03-17 11:36:32,324 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 756 transitions. Word has length 294 [2025-03-17 11:36:32,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:32,325 INFO L471 AbstractCegarLoop]: Abstraction has 635 states and 756 transitions. [2025-03-17 11:36:32,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 14 states have internal predecessors, (166), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:36:32,325 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 756 transitions. [2025-03-17 11:36:32,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2025-03-17 11:36:32,327 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:32,327 INFO L218 NwaCegarLoop]: trace histogram [16, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:32,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-17 11:36:32,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:32,527 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:32,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:32,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1425645526, now seen corresponding path program 2 times [2025-03-17 11:36:32,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:32,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884448515] [2025-03-17 11:36:32,529 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:36:32,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:32,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:32,531 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:36:32,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-17 11:36:32,979 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 300 statements into 2 equivalence classes. [2025-03-17 11:36:33,455 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 300 of 300 statements. [2025-03-17 11:36:33,456 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 11:36:33,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:33,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-17 11:36:33,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:33,520 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:36:33,521 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:36:33,521 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:36:33,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39