./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0672e9446c2cfbd152a4f960adca314d72e71aa68b29fd9a83ebc5c34f7546dd --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:36:32,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:36:32,679 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-17 11:36:32,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:36:32,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:36:32,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:36:32,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:36:32,702 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:36:32,702 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:36:32,702 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:36:32,702 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:36:32,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:36:32,703 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:36:32,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:36:32,703 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:36:32,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:36:32,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:36:32,704 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:36:32,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:36:32,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:36:32,704 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:36:32,704 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:36:32,705 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:36:32,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:36:32,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:36:32,706 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:36:32,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:36:32,706 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:36:32,706 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:36:32,706 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:36:32,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:36:32,706 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 -> 0672e9446c2cfbd152a4f960adca314d72e71aa68b29fd9a83ebc5c34f7546dd [2025-03-17 11:36:32,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:36:32,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:36:32,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:36:32,942 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:36:32,942 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:36:32,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i [2025-03-17 11:36:34,082 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2f41960/7a857291b778483d994af82dffb8dd35/FLAG36895da4e [2025-03-17 11:36:34,422 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:36:34,422 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i [2025-03-17 11:36:34,440 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2f41960/7a857291b778483d994af82dffb8dd35/FLAG36895da4e [2025-03-17 11:36:34,660 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2f41960/7a857291b778483d994af82dffb8dd35 [2025-03-17 11:36:34,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:36:34,664 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:36:34,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:36:34,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:36:34,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:36:34,669 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:36:34" (1/1) ... [2025-03-17 11:36:34,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b3f329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:34, skipping insertion in model container [2025-03-17 11:36:34,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:36:34" (1/1) ... [2025-03-17 11:36:34,710 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:36:35,123 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 11:36:35,137 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 11:36:35,139 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 11:36:35,142 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 11:36:35,147 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 11:36:35,169 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 11:36:35,169 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 11:36:35,170 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 11:36:35,170 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 11:36:35,171 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 11:36:35,173 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 11:36:35,175 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 11:36:35,175 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 11:36:35,175 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 11:36:35,181 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 11:36:35,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:36:35,199 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 11:36:35,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@45ff1194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:35, skipping insertion in model container [2025-03-17 11:36:35,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:36:35,200 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-17 11:36:35,202 INFO L158 Benchmark]: Toolchain (without parser) took 537.87ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 71.2MB in the end (delta: 30.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 11:36:35,203 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:36:35,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 534.92ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 71.2MB in the end (delta: 30.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 11:36:35,204 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 534.92ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 71.2MB in the end (delta: 30.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2239]: 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_test9-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0672e9446c2cfbd152a4f960adca314d72e71aa68b29fd9a83ebc5c34f7546dd --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:36:36,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:36:36,885 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-17 11:36:36,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:36:36,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:36:36,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:36:36,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:36:36,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:36:36,912 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:36:36,912 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:36:36,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:36:36,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:36:36,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:36:36,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:36:36,913 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:36:36,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:36:36,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:36:36,914 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:36:36,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:36:36,914 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:36:36,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:36:36,914 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:36:36,914 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:36:36,914 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:36:36,914 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:36:36,915 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:36:36,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 11:36:36,915 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:36:36,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:36:36,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:36:36,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:36:36,916 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 -> 0672e9446c2cfbd152a4f960adca314d72e71aa68b29fd9a83ebc5c34f7546dd [2025-03-17 11:36:37,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:36:37,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:36:37,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:36:37,158 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:36:37,158 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:36:37,159 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i [2025-03-17 11:36:38,356 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f203506f/bdebb33926014e989560694784b0fbe2/FLAGf27598018 [2025-03-17 11:36:38,688 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:36:38,689 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-2.i [2025-03-17 11:36:38,711 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f203506f/bdebb33926014e989560694784b0fbe2/FLAGf27598018 [2025-03-17 11:36:38,918 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f203506f/bdebb33926014e989560694784b0fbe2 [2025-03-17 11:36:38,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:36:38,920 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:36:38,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:36:38,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:36:38,924 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:36:38,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:36:38" (1/1) ... [2025-03-17 11:36:38,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726b86fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:38, skipping insertion in model container [2025-03-17 11:36:38,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:36:38" (1/1) ... [2025-03-17 11:36:38,971 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:36:39,326 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 11:36:39,349 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 11:36:39,351 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 11:36:39,354 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 11:36:39,358 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 11:36:39,384 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 11:36:39,384 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 11:36:39,386 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 11:36:39,386 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 11:36:39,387 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 11:36:39,388 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 11:36:39,389 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 11:36:39,391 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 11:36:39,392 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 11:36:39,394 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 11:36:39,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:36:39,412 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-17 11:36:39,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:36:39,502 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 11:36:39,511 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 11:36:39,514 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 11:36:39,515 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 11:36:39,518 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 11:36:39,529 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 11:36:39,529 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 11:36:39,530 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 11:36:39,531 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 11:36:39,532 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 11:36:39,532 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 11:36:39,533 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 11:36:39,533 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 11:36:39,534 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 11:36:39,535 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 11:36:39,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:36:39,540 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:36:39,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:36:39,656 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:36:39,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39 WrapperNode [2025-03-17 11:36:39,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:36:39,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:36:39,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:36:39,658 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:36:39,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (1/1) ... [2025-03-17 11:36:39,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (1/1) ... [2025-03-17 11:36:39,785 INFO L138 Inliner]: procedures = 180, calls = 775, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2998 [2025-03-17 11:36:39,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:36:39,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:36:39,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:36:39,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:36:39,795 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (1/1) ... [2025-03-17 11:36:39,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (1/1) ... [2025-03-17 11:36:39,835 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (1/1) ... [2025-03-17 11:36:39,893 INFO L175 MemorySlicer]: Split 256 memory accesses to 3 slices as follows [2, 34, 220]. 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 11:36:39,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (1/1) ... [2025-03-17 11:36:39,894 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (1/1) ... [2025-03-17 11:36:39,945 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (1/1) ... [2025-03-17 11:36:39,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (1/1) ... [2025-03-17 11:36:39,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (1/1) ... [2025-03-17 11:36:39,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (1/1) ... [2025-03-17 11:36:39,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:36:39,988 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:36:39,988 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:36:39,989 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:36:39,990 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (1/1) ... [2025-03-17 11:36:39,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:36:40,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:40,019 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 11:36:40,025 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 11:36:40,043 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-17 11:36:40,044 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 11:36:40,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-17 11:36:40,045 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 11:36:40,045 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 11:36:40,045 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 11:36:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 11:36:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 11:36:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-17 11:36:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-17 11:36:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-17 11:36:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 11:36:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-17 11:36:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-17 11:36:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:36:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:36:40,222 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:36:40,224 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:36:48,112 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2218: 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 11:36:48,299 INFO L? ?]: Removed 637 outVars from TransFormulas that were not future-live. [2025-03-17 11:36:48,299 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:36:48,334 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:36:48,334 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:36:48,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:36:48 BoogieIcfgContainer [2025-03-17 11:36:48,334 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:36:48,336 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:36:48,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:36:48,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:36:48,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:36:38" (1/3) ... [2025-03-17 11:36:48,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbe5a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:36:48, skipping insertion in model container [2025-03-17 11:36:48,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:36:39" (2/3) ... [2025-03-17 11:36:48,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbe5a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:36:48, skipping insertion in model container [2025-03-17 11:36:48,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:36:48" (3/3) ... [2025-03-17 11:36:48,341 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test9-2.i [2025-03-17 11:36:48,351 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:36:48,352 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test9-2.i that has 6 procedures, 1206 locations, 1 initial locations, 36 loop locations, and 2 error locations. [2025-03-17 11:36:48,403 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:36:48,411 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;@543e7a6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:36:48,412 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 11:36:48,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 1198 states, 687 states have (on average 1.9068413391557497) internal successors, (1310), 1191 states have internal predecessors, (1310), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2025-03-17 11:36:48,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-17 11:36:48,425 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:48,426 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:48,426 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:48,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:48,430 INFO L85 PathProgramCache]: Analyzing trace with hash -275909438, now seen corresponding path program 1 times [2025-03-17 11:36:48,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:48,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615709416] [2025-03-17 11:36:48,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:48,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:48,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:48,445 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 11:36:48,447 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 11:36:48,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 11:36:48,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 11:36:48,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:48,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:48,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 11:36:48,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:48,621 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 11:36:48,621 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:36:48,622 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:48,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615709416] [2025-03-17 11:36:48,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615709416] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:36:48,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:36:48,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:36:48,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311331826] [2025-03-17 11:36:48,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:36:48,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 11:36:48,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:48,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 11:36:48,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 11:36:48,650 INFO L87 Difference]: Start difference. First operand has 1198 states, 687 states have (on average 1.9068413391557497) internal successors, (1310), 1191 states have internal predecessors, (1310), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:36:48,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:48,726 INFO L93 Difference]: Finished difference Result 1196 states and 2253 transitions. [2025-03-17 11:36:48,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 11:36:48,727 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-17 11:36:48,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:48,743 INFO L225 Difference]: With dead ends: 1196 [2025-03-17 11:36:48,743 INFO L226 Difference]: Without dead ends: 1194 [2025-03-17 11:36:48,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 11:36:48,747 INFO L435 NwaCegarLoop]: 2253 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, 2253 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 11:36:48,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2253 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:36:48,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2025-03-17 11:36:48,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2025-03-17 11:36:48,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 685 states have (on average 1.8145985401459854) internal successors, (1243), 1187 states have internal predecessors, (1243), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-17 11:36:48,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 2251 transitions. [2025-03-17 11:36:48,995 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 2251 transitions. Word has length 10 [2025-03-17 11:36:48,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:48,995 INFO L471 AbstractCegarLoop]: Abstraction has 1194 states and 2251 transitions. [2025-03-17 11:36:48,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:36:48,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 2251 transitions. [2025-03-17 11:36:48,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 11:36:48,996 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:48,996 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:49,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 11:36:49,200 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 11:36:49,200 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:49,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:49,201 INFO L85 PathProgramCache]: Analyzing trace with hash 75554899, now seen corresponding path program 1 times [2025-03-17 11:36:49,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:49,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2131395760] [2025-03-17 11:36:49,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:49,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:49,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:49,203 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 11:36:49,205 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 11:36:49,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 11:36:49,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 11:36:49,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:49,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:49,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:36:49,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:49,398 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 11:36:49,398 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:36:49,398 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:49,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131395760] [2025-03-17 11:36:49,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131395760] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:36:49,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:36:49,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:36:49,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604927335] [2025-03-17 11:36:49,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:36:49,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:36:49,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:49,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:36:49,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:36:49,399 INFO L87 Difference]: Start difference. First operand 1194 states and 2251 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:36:49,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:49,991 INFO L93 Difference]: Finished difference Result 2309 states and 4402 transitions. [2025-03-17 11:36:49,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:36:49,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2025-03-17 11:36:49,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:50,004 INFO L225 Difference]: With dead ends: 2309 [2025-03-17 11:36:50,005 INFO L226 Difference]: Without dead ends: 2309 [2025-03-17 11:36:50,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:36:50,006 INFO L435 NwaCegarLoop]: 2239 mSDtfsCounter, 1141 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 4464 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:50,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 4464 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 11:36:50,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2025-03-17 11:36:50,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2279. [2025-03-17 11:36:50,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 1270 states have (on average 1.8543307086614174) internal successors, (2355), 2272 states have internal predecessors, (2355), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-17 11:36:50,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 4363 transitions. [2025-03-17 11:36:50,211 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 4363 transitions. Word has length 11 [2025-03-17 11:36:50,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:50,211 INFO L471 AbstractCegarLoop]: Abstraction has 2279 states and 4363 transitions. [2025-03-17 11:36:50,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:36:50,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 4363 transitions. [2025-03-17 11:36:50,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 11:36:50,212 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:50,212 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:36:50,218 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 11:36:50,412 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 11:36:50,412 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:50,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:50,413 INFO L85 PathProgramCache]: Analyzing trace with hash 75584690, now seen corresponding path program 1 times [2025-03-17 11:36:50,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:50,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218554605] [2025-03-17 11:36:50,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:50,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:50,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:50,415 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 11:36:50,429 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 11:36:50,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 11:36:50,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 11:36:50,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:50,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:50,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:36:50,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:50,587 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:36:50,587 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:36:50,588 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:36:50,595 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 11:36:50,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:36:50,646 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 11:36:50,663 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 11:36:50,663 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:36:50,664 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:50,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218554605] [2025-03-17 11:36:50,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218554605] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:36:50,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:36:50,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:36:50,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48289459] [2025-03-17 11:36:50,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:36:50,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:36:50,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:50,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:36:50,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:36:50,665 INFO L87 Difference]: Start difference. First operand 2279 states and 4363 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:36:52,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:52,914 INFO L93 Difference]: Finished difference Result 4421 states and 8550 transitions. [2025-03-17 11:36:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:36:52,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2025-03-17 11:36:52,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:52,935 INFO L225 Difference]: With dead ends: 4421 [2025-03-17 11:36:52,935 INFO L226 Difference]: Without dead ends: 4421 [2025-03-17 11:36:52,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 11:36:52,936 INFO L435 NwaCegarLoop]: 2414 mSDtfsCounter, 1223 mSDsluCounter, 4138 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 6552 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:52,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 6552 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-17 11:36:52,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4421 states. [2025-03-17 11:36:53,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4421 to 2278. [2025-03-17 11:36:53,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2278 states, 1269 states have (on average 1.8542159180457052) internal successors, (2353), 2271 states have internal predecessors, (2353), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-17 11:36:53,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2278 states to 2278 states and 4361 transitions. [2025-03-17 11:36:53,222 INFO L78 Accepts]: Start accepts. Automaton has 2278 states and 4361 transitions. Word has length 11 [2025-03-17 11:36:53,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:53,223 INFO L471 AbstractCegarLoop]: Abstraction has 2278 states and 4361 transitions. [2025-03-17 11:36:53,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:36:53,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2278 states and 4361 transitions. [2025-03-17 11:36:53,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-17 11:36:53,227 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:53,227 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] [2025-03-17 11:36:53,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 11:36:53,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:53,428 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:53,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:53,429 INFO L85 PathProgramCache]: Analyzing trace with hash 636629290, now seen corresponding path program 1 times [2025-03-17 11:36:53,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:53,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [213776676] [2025-03-17 11:36:53,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:53,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:53,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:53,434 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:36:53,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 11:36:53,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-17 11:36:53,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 11:36:53,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:53,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:53,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:36:53,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:53,729 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 11:36:53,730 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:36:53,730 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:53,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213776676] [2025-03-17 11:36:53,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213776676] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:36:53,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:36:53,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:36:53,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040137046] [2025-03-17 11:36:53,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:36:53,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:36:53,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:53,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:36:53,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:36:53,733 INFO L87 Difference]: Start difference. First operand 2278 states and 4361 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 11:36:53,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:36:53,839 INFO L93 Difference]: Finished difference Result 2318 states and 4401 transitions. [2025-03-17 11:36:53,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:36:53,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 80 [2025-03-17 11:36:53,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:36:53,848 INFO L225 Difference]: With dead ends: 2318 [2025-03-17 11:36:53,848 INFO L226 Difference]: Without dead ends: 2318 [2025-03-17 11:36:53,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:36:53,866 INFO L435 NwaCegarLoop]: 2231 mSDtfsCounter, 8 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4447 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:36:53,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4447 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:36:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2025-03-17 11:36:54,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2025-03-17 11:36:54,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1309 states have (on average 1.8281130634071812) internal successors, (2393), 2311 states have internal predecessors, (2393), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2025-03-17 11:36:54,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 4401 transitions. [2025-03-17 11:36:54,019 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 4401 transitions. Word has length 80 [2025-03-17 11:36:54,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:36:54,019 INFO L471 AbstractCegarLoop]: Abstraction has 2318 states and 4401 transitions. [2025-03-17 11:36:54,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 11:36:54,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 4401 transitions. [2025-03-17 11:36:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-17 11:36:54,020 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:36:54,020 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] [2025-03-17 11:36:54,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 11:36:54,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:54,221 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:36:54,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:36:54,222 INFO L85 PathProgramCache]: Analyzing trace with hash 535717323, now seen corresponding path program 1 times [2025-03-17 11:36:54,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:36:54,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [546445499] [2025-03-17 11:36:54,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:36:54,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:36:54,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:36:54,225 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:36:54,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 11:36:54,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-17 11:36:54,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 11:36:54,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:36:54,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:36:54,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:36:54,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:36:54,700 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 11:36:54,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:36:54,701 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:36:54,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546445499] [2025-03-17 11:36:54,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546445499] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:36:54,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:36:54,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:36:54,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681542088] [2025-03-17 11:36:54,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:36:54,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:36:54,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:36:54,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:36:54,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:36:54,702 INFO L87 Difference]: Start difference. First operand 2318 states and 4401 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 11:36:58,951 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 11:37:02,958 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 11:37:05,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:37:05,193 INFO L93 Difference]: Finished difference Result 1342 states and 2429 transitions. [2025-03-17 11:37:05,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:37:05,194 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 80 [2025-03-17 11:37:05,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:37:05,199 INFO L225 Difference]: With dead ends: 1342 [2025-03-17 11:37:05,200 INFO L226 Difference]: Without dead ends: 1342 [2025-03-17 11:37:05,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 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 11:37:05,200 INFO L435 NwaCegarLoop]: 2254 mSDtfsCounter, 2425 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1005 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2425 SdHoareTripleChecker+Valid, 3422 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1005 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:37:05,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2425 Valid, 3422 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1005 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2025-03-17 11:37:05,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2025-03-17 11:37:05,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1274. [2025-03-17 11:37:05,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 765 states have (on average 1.7411764705882353) internal successors, (1332), 1267 states have internal predecessors, (1332), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-17 11:37:05,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 2340 transitions. [2025-03-17 11:37:05,330 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 2340 transitions. Word has length 80 [2025-03-17 11:37:05,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:37:05,331 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 2340 transitions. [2025-03-17 11:37:05,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 11:37:05,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 2340 transitions. [2025-03-17 11:37:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-17 11:37:05,333 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:37:05,333 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:37:05,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 11:37:05,538 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 11:37:05,538 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:37:05,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:37:05,539 INFO L85 PathProgramCache]: Analyzing trace with hash 895777770, now seen corresponding path program 1 times [2025-03-17 11:37:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:37:05,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849538258] [2025-03-17 11:37:05,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:37:05,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:37:05,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:37:05,543 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 11:37:05,544 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 11:37:05,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-17 11:37:05,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 11:37:05,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:37:05,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:37:05,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:37:05,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:37:05,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 11:37:05,886 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:37:05,886 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:37:05,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849538258] [2025-03-17 11:37:05,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849538258] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:37:05,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:37:05,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:37:05,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419280432] [2025-03-17 11:37:05,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:37:05,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:37:05,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:37:05,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:37:05,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:37:05,887 INFO L87 Difference]: Start difference. First operand 1274 states and 2340 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 11:37:06,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:37:06,043 INFO L93 Difference]: Finished difference Result 1240 states and 2284 transitions. [2025-03-17 11:37:06,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:37:06,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 89 [2025-03-17 11:37:06,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:37:06,048 INFO L225 Difference]: With dead ends: 1240 [2025-03-17 11:37:06,048 INFO L226 Difference]: Without dead ends: 1240 [2025-03-17 11:37:06,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 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 11:37:06,051 INFO L435 NwaCegarLoop]: 2217 mSDtfsCounter, 32 mSDsluCounter, 4420 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6637 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 11:37:06,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 6637 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:37:06,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2025-03-17 11:37:06,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1240. [2025-03-17 11:37:06,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 731 states have (on average 1.7455540355677155) internal successors, (1276), 1233 states have internal predecessors, (1276), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-17 11:37:06,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 2284 transitions. [2025-03-17 11:37:06,131 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 2284 transitions. Word has length 89 [2025-03-17 11:37:06,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:37:06,131 INFO L471 AbstractCegarLoop]: Abstraction has 1240 states and 2284 transitions. [2025-03-17 11:37:06,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 11:37:06,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 2284 transitions. [2025-03-17 11:37:06,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-17 11:37:06,132 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:37:06,132 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:37:06,143 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 11:37:06,333 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 11:37:06,333 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:37:06,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:37:06,334 INFO L85 PathProgramCache]: Analyzing trace with hash -317946063, now seen corresponding path program 1 times [2025-03-17 11:37:06,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:37:06,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094681112] [2025-03-17 11:37:06,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:37:06,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:37:06,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:37:06,336 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 11:37:06,338 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 11:37:06,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-17 11:37:06,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 11:37:06,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:37:06,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:37:06,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:37:06,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:37:06,703 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 11:37:06,703 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:37:06,703 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:37:06,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094681112] [2025-03-17 11:37:06,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094681112] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:37:06,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:37:06,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:37:06,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118827329] [2025-03-17 11:37:06,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:37:06,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:37:06,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:37:06,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:37:06,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:37:06,704 INFO L87 Difference]: Start difference. First operand 1240 states and 2284 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 11:37:11,137 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 11:37:15,157 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 [] [2025-03-17 11:37:17,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:37:17,707 INFO L93 Difference]: Finished difference Result 1242 states and 2286 transitions. [2025-03-17 11:37:17,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:37:17,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 89 [2025-03-17 11:37:17,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:37:17,712 INFO L225 Difference]: With dead ends: 1242 [2025-03-17 11:37:17,712 INFO L226 Difference]: Without dead ends: 1242 [2025-03-17 11:37:17,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 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 11:37:17,712 INFO L435 NwaCegarLoop]: 2208 mSDtfsCounter, 1208 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 4425 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:37:17,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 4425 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 579 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2025-03-17 11:37:17,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2025-03-17 11:37:17,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1241. [2025-03-17 11:37:17,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 732 states have (on average 1.744535519125683) internal successors, (1277), 1234 states have internal predecessors, (1277), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2025-03-17 11:37:17,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 2285 transitions. [2025-03-17 11:37:17,789 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 2285 transitions. Word has length 89 [2025-03-17 11:37:17,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:37:17,790 INFO L471 AbstractCegarLoop]: Abstraction has 1241 states and 2285 transitions. [2025-03-17 11:37:17,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 11:37:17,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 2285 transitions. [2025-03-17 11:37:17,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-17 11:37:17,791 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:37:17,791 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:37:17,802 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 11:37:17,991 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 11:37:17,991 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:37:17,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:37:17,992 INFO L85 PathProgramCache]: Analyzing trace with hash -317916272, now seen corresponding path program 1 times [2025-03-17 11:37:17,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:37:17,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744606536] [2025-03-17 11:37:17,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:37:17,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:37:17,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:37:17,994 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 11:37:17,995 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 11:37:18,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-17 11:37:18,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 11:37:18,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:37:18,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:37:18,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:37:18,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:37:18,331 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 11:37:18,332 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:37:18,332 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:37:18,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744606536] [2025-03-17 11:37:18,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744606536] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:37:18,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:37:18,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:37:18,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032354954] [2025-03-17 11:37:18,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:37:18,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:37:18,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:37:18,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:37:18,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:37:18,335 INFO L87 Difference]: Start difference. First operand 1241 states and 2285 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:37:18,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:37:18,390 INFO L93 Difference]: Finished difference Result 1244 states and 2289 transitions. [2025-03-17 11:37:18,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:37:18,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 89 [2025-03-17 11:37:18,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:37:18,404 INFO L225 Difference]: With dead ends: 1244 [2025-03-17 11:37:18,404 INFO L226 Difference]: Without dead ends: 1244 [2025-03-17 11:37:18,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 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 11:37:18,405 INFO L435 NwaCegarLoop]: 2235 mSDtfsCounter, 0 mSDsluCounter, 4466 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6701 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 11:37:18,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6701 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:37:18,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2025-03-17 11:37:18,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1244. [2025-03-17 11:37:18,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 734 states have (on average 1.7438692098092643) internal successors, (1280), 1237 states have internal predecessors, (1280), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2025-03-17 11:37:18,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 2289 transitions. [2025-03-17 11:37:18,507 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 2289 transitions. Word has length 89 [2025-03-17 11:37:18,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:37:18,507 INFO L471 AbstractCegarLoop]: Abstraction has 1244 states and 2289 transitions. [2025-03-17 11:37:18,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:37:18,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 2289 transitions. [2025-03-17 11:37:18,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-17 11:37:18,507 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:37:18,507 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] [2025-03-17 11:37:18,527 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 11:37:18,708 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 11:37:18,709 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:37:18,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:37:18,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1284376652, now seen corresponding path program 1 times [2025-03-17 11:37:18,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:37:18,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2114039251] [2025-03-17 11:37:18,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:37:18,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:37:18,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:37:18,713 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 11:37:18,722 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 11:37:18,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-17 11:37:19,016 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-17 11:37:19,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:37:19,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:37:19,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:37:19,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:37:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-17 11:37:19,058 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:37:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-17 11:37:19,137 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:37:19,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114039251] [2025-03-17 11:37:19,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114039251] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:37:19,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:37:19,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-17 11:37:19,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428388995] [2025-03-17 11:37:19,137 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:37:19,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 11:37:19,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:37:19,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 11:37:19,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 11:37:19,138 INFO L87 Difference]: Start difference. First operand 1244 states and 2289 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:37:19,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:37:19,262 INFO L93 Difference]: Finished difference Result 1255 states and 2306 transitions. [2025-03-17 11:37:19,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:37:19,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 91 [2025-03-17 11:37:19,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:37:19,268 INFO L225 Difference]: With dead ends: 1255 [2025-03-17 11:37:19,268 INFO L226 Difference]: Without dead ends: 1255 [2025-03-17 11:37:19,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 174 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 11:37:19,269 INFO L435 NwaCegarLoop]: 2234 mSDtfsCounter, 4 mSDsluCounter, 6698 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8932 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:37:19,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8932 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:37:19,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2025-03-17 11:37:19,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1253. [2025-03-17 11:37:19,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 742 states have (on average 1.743935309973046) internal successors, (1294), 1245 states have internal predecessors, (1294), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (505), 4 states have call predecessors, (505), 503 states have call successors, (505) [2025-03-17 11:37:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 2304 transitions. [2025-03-17 11:37:19,366 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 2304 transitions. Word has length 91 [2025-03-17 11:37:19,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:37:19,366 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 2304 transitions. [2025-03-17 11:37:19,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:37:19,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 2304 transitions. [2025-03-17 11:37:19,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-03-17 11:37:19,367 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:37:19,367 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] [2025-03-17 11:37:19,378 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 11:37:19,568 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 11:37:19,568 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:37:19,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:37:19,569 INFO L85 PathProgramCache]: Analyzing trace with hash 916581424, now seen corresponding path program 2 times [2025-03-17 11:37:19,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:37:19,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277282418] [2025-03-17 11:37:19,570 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:37:19,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:37:19,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:37:19,571 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 11:37:19,573 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 11:37:19,796 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-03-17 11:37:19,806 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 95 statements. [2025-03-17 11:37:19,806 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 11:37:19,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:37:19,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:37:19,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:37:19,823 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:37:19,824 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:37:19,826 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 33 treesize of output 31 [2025-03-17 11:37:19,864 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:37:19,865 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 62 treesize of output 22 [2025-03-17 11:37:19,900 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-17 11:37:19,900 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:37:19,900 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:37:19,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277282418] [2025-03-17 11:37:19,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277282418] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:37:19,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:37:19,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:37:19,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608607429] [2025-03-17 11:37:19,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:37:19,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:37:19,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:37:19,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:37:19,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:37:19,901 INFO L87 Difference]: Start difference. First operand 1253 states and 2304 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 11:37:21,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:37:21,834 INFO L93 Difference]: Finished difference Result 2351 states and 4434 transitions. [2025-03-17 11:37:21,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:37:21,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 95 [2025-03-17 11:37:21,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:37:21,847 INFO L225 Difference]: With dead ends: 2351 [2025-03-17 11:37:21,847 INFO L226 Difference]: Without dead ends: 2351 [2025-03-17 11:37:21,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 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 11:37:21,848 INFO L435 NwaCegarLoop]: 2298 mSDtfsCounter, 1170 mSDsluCounter, 3999 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 6297 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-17 11:37:21,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 6297 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-17 11:37:21,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2025-03-17 11:37:21,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 1255. [2025-03-17 11:37:21,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 744 states have (on average 1.7419354838709677) internal successors, (1296), 1247 states have internal predecessors, (1296), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (505), 4 states have call predecessors, (505), 503 states have call successors, (505) [2025-03-17 11:37:22,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 2306 transitions. [2025-03-17 11:37:22,002 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 2306 transitions. Word has length 95 [2025-03-17 11:37:22,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:37:22,002 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 2306 transitions. [2025-03-17 11:37:22,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 11:37:22,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 2306 transitions. [2025-03-17 11:37:22,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-17 11:37:22,003 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:37:22,003 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 11:37:22,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 11:37:22,203 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 11:37:22,204 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:37:22,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:37:22,205 INFO L85 PathProgramCache]: Analyzing trace with hash -332842984, now seen corresponding path program 1 times [2025-03-17 11:37:22,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:37:22,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24790877] [2025-03-17 11:37:22,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:37:22,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:37:22,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:37:22,207 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 11:37:22,208 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 11:37:22,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 11:37:22,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 11:37:22,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:37:22,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:37:22,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:37:22,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:37:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-03-17 11:37:22,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:37:22,592 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:37:22,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24790877] [2025-03-17 11:37:22,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24790877] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:37:22,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:37:22,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:37:22,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382100436] [2025-03-17 11:37:22,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:37:22,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:37:22,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:37:22,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:37:22,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:37:22,593 INFO L87 Difference]: Start difference. First operand 1255 states and 2306 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 11:37:22,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:37:22,703 INFO L93 Difference]: Finished difference Result 1275 states and 2326 transitions. [2025-03-17 11:37:22,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:37:22,705 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 128 [2025-03-17 11:37:22,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:37:22,710 INFO L225 Difference]: With dead ends: 1275 [2025-03-17 11:37:22,710 INFO L226 Difference]: Without dead ends: 1275 [2025-03-17 11:37:22,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 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 11:37:22,711 INFO L435 NwaCegarLoop]: 2218 mSDtfsCounter, 9 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4421 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 11:37:22,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4421 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:37:22,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2025-03-17 11:37:22,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1275. [2025-03-17 11:37:22,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 764 states have (on average 1.7225130890052356) internal successors, (1316), 1267 states have internal predecessors, (1316), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (505), 4 states have call predecessors, (505), 503 states have call successors, (505) [2025-03-17 11:37:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 2326 transitions. [2025-03-17 11:37:22,813 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 2326 transitions. Word has length 128 [2025-03-17 11:37:22,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:37:22,813 INFO L471 AbstractCegarLoop]: Abstraction has 1275 states and 2326 transitions. [2025-03-17 11:37:22,813 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 11:37:22,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 2326 transitions. [2025-03-17 11:37:22,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-17 11:37:22,814 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:37:22,814 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 11:37:22,828 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 11:37:23,014 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 11:37:23,015 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:37:23,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:37:23,015 INFO L85 PathProgramCache]: Analyzing trace with hash -456916231, now seen corresponding path program 1 times [2025-03-17 11:37:23,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:37:23,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [946191056] [2025-03-17 11:37:23,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:37:23,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:37:23,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:37:23,017 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 11:37:23,019 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 11:37:23,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 11:37:23,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 11:37:23,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:37:23,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:37:23,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:37:23,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:37:23,485 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-03-17 11:37:23,485 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:37:23,485 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:37:23,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946191056] [2025-03-17 11:37:23,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946191056] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:37:23,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:37:23,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:37:23,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082384344] [2025-03-17 11:37:23,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:37:23,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:37:23,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:37:23,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:37:23,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:37:23,487 INFO L87 Difference]: Start difference. First operand 1275 states and 2326 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 11:37:23,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:37:23,592 INFO L93 Difference]: Finished difference Result 1258 states and 2298 transitions. [2025-03-17 11:37:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:37:23,593 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 128 [2025-03-17 11:37:23,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:37:23,597 INFO L225 Difference]: With dead ends: 1258 [2025-03-17 11:37:23,597 INFO L226 Difference]: Without dead ends: 1258 [2025-03-17 11:37:23,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 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 11:37:23,598 INFO L435 NwaCegarLoop]: 2206 mSDtfsCounter, 32 mSDsluCounter, 4398 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6604 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 11:37:23,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 6604 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:37:23,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2025-03-17 11:37:23,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1258. [2025-03-17 11:37:23,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 747 states have (on average 1.7242302543507362) internal successors, (1288), 1250 states have internal predecessors, (1288), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (505), 4 states have call predecessors, (505), 503 states have call successors, (505) [2025-03-17 11:37:23,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 2298 transitions. [2025-03-17 11:37:23,710 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 2298 transitions. Word has length 128 [2025-03-17 11:37:23,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:37:23,711 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 2298 transitions. [2025-03-17 11:37:23,711 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 11:37:23,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 2298 transitions. [2025-03-17 11:37:23,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-17 11:37:23,712 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:37:23,712 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 11:37:23,732 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 11:37:23,912 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 11:37:23,913 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:37:23,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:37:23,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1592431790, now seen corresponding path program 1 times [2025-03-17 11:37:23,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:37:23,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101045460] [2025-03-17 11:37:23,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:37:23,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:37:23,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:37:23,916 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 11:37:23,917 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 11:37:24,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 11:37:24,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 11:37:24,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:37:24,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:37:24,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:37:24,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:37:24,383 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 11:37:24,383 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:37:24,521 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 11:37:24,521 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:37:24,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101045460] [2025-03-17 11:37:24,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101045460] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:37:24,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:37:24,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-17 11:37:24,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038568668] [2025-03-17 11:37:24,521 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:37:24,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:37:24,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:37:24,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:37:24,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:37:24,522 INFO L87 Difference]: Start difference. First operand 1258 states and 2298 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 11:37:24,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:37:24,813 INFO L93 Difference]: Finished difference Result 1266 states and 2308 transitions. [2025-03-17 11:37:24,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 11:37:24,813 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 11:37:24,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:37:24,822 INFO L225 Difference]: With dead ends: 1266 [2025-03-17 11:37:24,823 INFO L226 Difference]: Without dead ends: 1264 [2025-03-17 11:37:24,823 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 11:37:24,823 INFO L435 NwaCegarLoop]: 2225 mSDtfsCounter, 6 mSDsluCounter, 11107 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13332 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:37:24,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13332 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 11:37:24,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2025-03-17 11:37:24,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1262. [2025-03-17 11:37:24,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 751 states have (on average 1.7230359520639147) internal successors, (1294), 1254 states have internal predecessors, (1294), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2025-03-17 11:37:24,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2303 transitions. [2025-03-17 11:37:24,918 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2303 transitions. Word has length 128 [2025-03-17 11:37:24,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:37:24,918 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 2303 transitions. [2025-03-17 11:37:24,918 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 11:37:24,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2303 transitions. [2025-03-17 11:37:24,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-17 11:37:24,921 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:37:24,921 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 11:37:24,934 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 11:37:25,121 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 11:37:25,122 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:37:25,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:37:25,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2061482898, now seen corresponding path program 2 times [2025-03-17 11:37:25,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:37:25,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703963285] [2025-03-17 11:37:25,123 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:37:25,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:37:25,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:37:25,125 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 11:37:25,127 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 11:37:25,411 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 132 statements into 2 equivalence classes. [2025-03-17 11:37:25,613 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 132 of 132 statements. [2025-03-17 11:37:25,613 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 11:37:25,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:37:25,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 11:37:25,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:37:25,640 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:37:25,640 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:37:25,641 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:37:25,642 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 11:37:27,128 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:37:27,128 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 162 treesize of output 71 [2025-03-17 11:37:27,372 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:37:27,372 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 98 treesize of output 58 [2025-03-17 11:37:27,392 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 11:37:27,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:37:27,799 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:37:27,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703963285] [2025-03-17 11:37:27,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703963285] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 11:37:27,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1279644667] [2025-03-17 11:37:27,800 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:37:27,800 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-03-17 11:37:27,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-03-17 11:37:27,802 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-03-17 11:37:27,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2025-03-17 11:37:28,165 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 132 statements into 2 equivalence classes. [2025-03-17 11:37:28,603 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 132 of 132 statements. [2025-03-17 11:37:28,604 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 11:37:28,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:37:28,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 11:37:28,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:37:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 40 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-17 11:37:28,839 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:37:29,175 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 2 proven. 58 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-17 11:37:29,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1279644667] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:37:29,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 11:37:29,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 10] total 23 [2025-03-17 11:37:29,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057396052] [2025-03-17 11:37:29,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 11:37:29,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-17 11:37:29,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:37:29,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-17 11:37:29,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2025-03-17 11:37:29,176 INFO L87 Difference]: Start difference. First operand 1262 states and 2303 transitions. Second operand has 23 states, 23 states have (on average 8.826086956521738) internal successors, (203), 23 states have internal predecessors, (203), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 11:37:35,793 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 11:37:40,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:37:44,212 WARN L539 Checker$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 11:37:48,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:37:52,351 WARN L539 Checker$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 11:37:56,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:38:00,508 WARN L539 Checker$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 11:38:04,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-03-17 11:38:08,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]