./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 798a7b37 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_nondet_test1-2.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 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:14:34,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:14:34,094 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-04 07:14:34,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:14:34,097 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:14:34,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:14:34,118 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:14:34,118 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:14:34,119 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 07:14:34,119 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 07:14:34,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:14:34,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:14:34,120 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:14:34,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:14:34,120 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:14:34,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:14:34,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 07:14:34,121 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:14:34,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:14:34,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:14:34,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:14:34,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 07:14:34,121 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 07:14:34,121 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 07:14:34,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:14:34,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 07:14:34,121 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 07:14:34,122 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:14:34,122 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:14:34,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 07:14:34,122 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:14:34,122 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:14:34,122 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:14:34,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:14:34,122 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 07:14:34,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:14:34,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:14:34,123 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:14:34,123 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:14:34,123 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 07:14:34,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 07:14:34,123 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:14:34,123 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:14:34,123 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:14:34,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:14:34,123 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 -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2025-03-04 07:14:34,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:14:34,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:14:34,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:14:34,340 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:14:34,340 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:14:34,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i [2025-03-04 07:14:35,475 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2f230cd7/88478d6d678b4da19db7c70d66036614/FLAG18e985021 [2025-03-04 07:14:35,794 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:14:35,796 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i [2025-03-04 07:14:35,813 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2f230cd7/88478d6d678b4da19db7c70d66036614/FLAG18e985021 [2025-03-04 07:14:36,048 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2f230cd7/88478d6d678b4da19db7c70d66036614 [2025-03-04 07:14:36,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:14:36,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:14:36,051 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:14:36,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:14:36,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:14:36,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:14:36" (1/1) ... [2025-03-04 07:14:36,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5865a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:36, skipping insertion in model container [2025-03-04 07:14:36,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:14:36" (1/1) ... [2025-03-04 07:14:36,085 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:14:36,324 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:36,353 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:36,359 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:36,361 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:36,370 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:36,382 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:36,383 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:36,385 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:36,388 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:36,389 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:36,389 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:36,392 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:36,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:14:36,406 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) [2025-03-04 07:14:36,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e7ffe38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:36, skipping insertion in model container [2025-03-04 07:14:36,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:14:36,407 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-04 07:14:36,408 INFO L158 Benchmark]: Toolchain (without parser) took 356.84ms. Allocated memory is still 201.3MB. Free memory was 156.5MB in the beginning and 139.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 07:14:36,408 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 07:14:36,408 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.28ms. Allocated memory is still 201.3MB. Free memory was 156.2MB in the beginning and 139.2MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 07:14:36,409 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.28ms. Allocated memory is still 201.3MB. Free memory was 156.2MB in the beginning and 139.2MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 753]: 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_nondet_test1-2.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 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:14:38,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:14:38,205 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-04 07:14:38,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:14:38,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:14:38,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:14:38,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:14:38,227 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:14:38,227 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 07:14:38,227 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 07:14:38,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:14:38,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:14:38,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:14:38,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:14:38,228 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:14:38,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:14:38,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 07:14:38,228 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:14:38,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:14:38,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:14:38,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:14:38,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 07:14:38,229 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 07:14:38,229 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 07:14:38,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:14:38,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 07:14:38,229 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 07:14:38,229 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 07:14:38,229 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 07:14:38,229 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:14:38,229 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:14:38,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 07:14:38,230 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:14:38,230 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:14:38,230 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:14:38,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:14:38,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 07:14:38,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:14:38,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:14:38,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:14:38,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:14:38,230 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 07:14:38,231 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 07:14:38,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:14:38,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:14:38,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:14:38,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:14:38,231 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 -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2025-03-04 07:14:38,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:14:38,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:14:38,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:14:38,491 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:14:38,492 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:14:38,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i [2025-03-04 07:14:39,693 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32a454dd9/da44b4e85e064e35bf9a83479fd91e50/FLAG83189762f [2025-03-04 07:14:40,003 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:14:40,005 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test1-2.i [2025-03-04 07:14:40,022 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32a454dd9/da44b4e85e064e35bf9a83479fd91e50/FLAG83189762f [2025-03-04 07:14:40,040 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32a454dd9/da44b4e85e064e35bf9a83479fd91e50 [2025-03-04 07:14:40,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:14:40,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:14:40,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:14:40,048 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:14:40,052 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:14:40,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6d0068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40, skipping insertion in model container [2025-03-04 07:14:40,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,085 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:14:40,347 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,371 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,375 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,378 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,387 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,403 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,404 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,406 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,407 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,408 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,410 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,417 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:14:40,444 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-04 07:14:40,457 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:14:40,494 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,504 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,506 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,517 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,525 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,536 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,537 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,538 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,541 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,541 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,542 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,545 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:14:40,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:14:40,549 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 07:14:40,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:14:40,640 INFO L204 MainTranslator]: Completed translation [2025-03-04 07:14:40,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40 WrapperNode [2025-03-04 07:14:40,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:14:40,642 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 07:14:40,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 07:14:40,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 07:14:40,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,697 INFO L138 Inliner]: procedures = 179, calls = 221, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 714 [2025-03-04 07:14:40,697 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 07:14:40,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 07:14:40,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 07:14:40,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 07:14:40,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,712 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,756 INFO L175 MemorySlicer]: Split 206 memory accesses to 2 slices as follows [2, 204]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 50 writes are split as follows [0, 50]. [2025-03-04 07:14:40,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,756 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,794 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,800 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,809 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 07:14:40,810 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 07:14:40,811 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 07:14:40,811 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 07:14:40,812 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (1/1) ... [2025-03-04 07:14:40,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:14:40,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:14:40,842 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) [2025-03-04 07:14:40,848 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 [2025-03-04 07:14:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-04 07:14:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-04 07:14:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-04 07:14:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-04 07:14:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-04 07:14:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-04 07:14:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-04 07:14:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-04 07:14:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 07:14:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 07:14:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 07:14:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 07:14:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 07:14:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 07:14:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 07:14:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-04 07:14:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-04 07:14:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-04 07:14:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-04 07:14:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 07:14:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 07:14:41,003 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 07:14:41,005 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 07:14:47,082 INFO L? ?]: Removed 109 outVars from TransFormulas that were not future-live. [2025-03-04 07:14:47,082 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 07:14:47,090 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 07:14:47,090 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 07:14:47,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:14:47 BoogieIcfgContainer [2025-03-04 07:14:47,090 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 07:14:47,092 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 07:14:47,093 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 07:14:47,097 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 07:14:47,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 07:14:40" (1/3) ... [2025-03-04 07:14:47,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d85dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:14:47, skipping insertion in model container [2025-03-04 07:14:47,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:14:40" (2/3) ... [2025-03-04 07:14:47,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d85dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:14:47, skipping insertion in model container [2025-03-04 07:14:47,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:14:47" (3/3) ... [2025-03-04 07:14:47,100 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test1-2.i [2025-03-04 07:14:47,109 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 07:14:47,111 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_nondet_test1-2.i that has 3 procedures, 136 locations, 1 initial locations, 24 loop locations, and 2 error locations. [2025-03-04 07:14:47,141 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 07:14:47,153 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;@569189ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 07:14:47,154 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-04 07:14:47,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 125 states have (on average 1.64) internal successors, (205), 127 states have internal predecessors, (205), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 07:14:47,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-04 07:14:47,161 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:14:47,161 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:14:47,161 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:14:47,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:14:47,168 INFO L85 PathProgramCache]: Analyzing trace with hash -652237759, now seen corresponding path program 1 times [2025-03-04 07:14:47,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:14:47,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185886374] [2025-03-04 07:14:47,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:14:47,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:14:47,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:14:47,177 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) [2025-03-04 07:14:47,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 07:14:47,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 07:14:47,299 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 07:14:47,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:14:47,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:14:47,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:14:47,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:14:47,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:14:47,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:14:47,350 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:14:47,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185886374] [2025-03-04 07:14:47,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185886374] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:14:47,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:14:47,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:14:47,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024370795] [2025-03-04 07:14:47,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:14:47,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:14:47,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:14:47,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:14:47,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:14:47,384 INFO L87 Difference]: Start difference. First operand has 132 states, 125 states have (on average 1.64) internal successors, (205), 127 states have internal predecessors, (205), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:14:47,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:14:47,612 INFO L93 Difference]: Finished difference Result 136 states and 176 transitions. [2025-03-04 07:14:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:14:47,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-04 07:14:47,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:14:47,617 INFO L225 Difference]: With dead ends: 136 [2025-03-04 07:14:47,618 INFO L226 Difference]: Without dead ends: 134 [2025-03-04 07:14:47,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:14:47,624 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 2 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 07:14:47,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 491 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 07:14:47,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2025-03-04 07:14:47,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2025-03-04 07:14:47,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 126 states have (on average 1.3174603174603174) internal successors, (166), 127 states have internal predecessors, (166), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 07:14:47,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 172 transitions. [2025-03-04 07:14:47,651 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 172 transitions. Word has length 7 [2025-03-04 07:14:47,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:14:47,652 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 172 transitions. [2025-03-04 07:14:47,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:14:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 172 transitions. [2025-03-04 07:14:47,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 07:14:47,654 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:14:47,654 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:14:47,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 07:14:47,854 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 [2025-03-04 07:14:47,855 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:14:47,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:14:47,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1256450139, now seen corresponding path program 1 times [2025-03-04 07:14:47,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:14:47,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [254027067] [2025-03-04 07:14:47,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:14:47,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:14:47,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:14:47,858 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) [2025-03-04 07:14:47,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 07:14:47,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 07:14:47,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 07:14:47,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:14:47,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:14:47,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 07:14:47,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:14:47,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:14:47,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:14:47,987 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:14:47,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254027067] [2025-03-04 07:14:47,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254027067] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:14:47,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:14:47,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:14:47,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564035530] [2025-03-04 07:14:47,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:14:47,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:14:47,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:14:47,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:14:47,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:14:47,989 INFO L87 Difference]: Start difference. First operand 132 states and 172 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:14:52,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 07:14:54,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:14:54,058 INFO L93 Difference]: Finished difference Result 202 states and 262 transitions. [2025-03-04 07:14:54,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:14:54,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-04 07:14:54,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:14:54,064 INFO L225 Difference]: With dead ends: 202 [2025-03-04 07:14:54,065 INFO L226 Difference]: Without dead ends: 202 [2025-03-04 07:14:54,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:14:54,065 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 94 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:14:54,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 477 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2025-03-04 07:14:54,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2025-03-04 07:14:54,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 173. [2025-03-04 07:14:54,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 167 states have (on average 1.3053892215568863) internal successors, (218), 168 states have internal predecessors, (218), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 07:14:54,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 224 transitions. [2025-03-04 07:14:54,076 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 224 transitions. Word has length 8 [2025-03-04 07:14:54,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:14:54,076 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 224 transitions. [2025-03-04 07:14:54,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:14:54,076 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 224 transitions. [2025-03-04 07:14:54,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-04 07:14:54,076 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:14:54,076 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:14:54,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 07:14:54,277 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 [2025-03-04 07:14:54,277 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:14:54,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:14:54,278 INFO L85 PathProgramCache]: Analyzing trace with hash -359084717, now seen corresponding path program 1 times [2025-03-04 07:14:54,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:14:54,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682595477] [2025-03-04 07:14:54,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:14:54,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:14:54,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:14:54,280 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) [2025-03-04 07:14:54,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 07:14:54,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 07:14:54,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 07:14:54,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:14:54,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:14:54,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 07:14:54,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:14:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:14:54,413 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:14:54,413 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:14:54,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682595477] [2025-03-04 07:14:54,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682595477] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:14:54,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:14:54,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:14:54,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700650745] [2025-03-04 07:14:54,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:14:54,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:14:54,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:14:54,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:14:54,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:14:54,414 INFO L87 Difference]: Start difference. First operand 173 states and 224 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2025-03-04 07:14:58,433 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 [] [2025-03-04 07:14:58,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:14:58,647 INFO L93 Difference]: Finished difference Result 174 states and 224 transitions. [2025-03-04 07:14:58,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:14:58,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2025-03-04 07:14:58,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:14:58,655 INFO L225 Difference]: With dead ends: 174 [2025-03-04 07:14:58,655 INFO L226 Difference]: Without dead ends: 167 [2025-03-04 07:14:58,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:14:58,656 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-03-04 07:14:58,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 323 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2025-03-04 07:14:58,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2025-03-04 07:14:58,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2025-03-04 07:14:58,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 161 states have (on average 1.31055900621118) internal successors, (211), 162 states have internal predecessors, (211), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 07:14:58,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 217 transitions. [2025-03-04 07:14:58,673 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 217 transitions. Word has length 10 [2025-03-04 07:14:58,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:14:58,673 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 217 transitions. [2025-03-04 07:14:58,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2025-03-04 07:14:58,674 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 217 transitions. [2025-03-04 07:14:58,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-04 07:14:58,675 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:14:58,675 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-04 07:14:58,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 07:14:58,875 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 [2025-03-04 07:14:58,875 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:14:58,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:14:58,876 INFO L85 PathProgramCache]: Analyzing trace with hash -854528337, now seen corresponding path program 1 times [2025-03-04 07:14:58,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:14:58,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [746841808] [2025-03-04 07:14:58,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:14:58,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:14:58,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:14:58,879 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) [2025-03-04 07:14:58,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 07:14:59,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-04 07:14:59,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-04 07:14:59,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:14:59,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:14:59,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 07:14:59,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:14:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 07:14:59,176 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:14:59,176 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:14:59,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746841808] [2025-03-04 07:14:59,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746841808] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:14:59,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:14:59,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 07:14:59,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89018696] [2025-03-04 07:14:59,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:14:59,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:14:59,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:14:59,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:14:59,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:14:59,181 INFO L87 Difference]: Start difference. First operand 167 states and 217 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2025-03-04 07:14:59,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:14:59,261 INFO L93 Difference]: Finished difference Result 207 states and 257 transitions. [2025-03-04 07:14:59,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:14:59,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 75 [2025-03-04 07:14:59,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:14:59,263 INFO L225 Difference]: With dead ends: 207 [2025-03-04 07:14:59,264 INFO L226 Difference]: Without dead ends: 207 [2025-03-04 07:14:59,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:14:59,264 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 9 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 279 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 [2025-03-04 07:14:59,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 279 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:14:59,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2025-03-04 07:14:59,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2025-03-04 07:14:59,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 201 states have (on average 1.2487562189054726) internal successors, (251), 202 states have internal predecessors, (251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 07:14:59,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 257 transitions. [2025-03-04 07:14:59,274 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 257 transitions. Word has length 75 [2025-03-04 07:14:59,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:14:59,274 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 257 transitions. [2025-03-04 07:14:59,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2025-03-04 07:14:59,274 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 257 transitions. [2025-03-04 07:14:59,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-04 07:14:59,275 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:14:59,275 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-04 07:14:59,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 07:14:59,479 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 [2025-03-04 07:14:59,479 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:14:59,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:14:59,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2136045230, now seen corresponding path program 1 times [2025-03-04 07:14:59,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:14:59,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132400985] [2025-03-04 07:14:59,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:14:59,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:14:59,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:14:59,483 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) [2025-03-04 07:14:59,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 07:14:59,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-04 07:14:59,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-04 07:14:59,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:14:59,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:14:59,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:14:59,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:14:59,969 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 07:14:59,969 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:14:59,969 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:14:59,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132400985] [2025-03-04 07:14:59,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132400985] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:14:59,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:14:59,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:14:59,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777934399] [2025-03-04 07:14:59,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:14:59,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:14:59,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:14:59,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:14:59,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:14:59,970 INFO L87 Difference]: Start difference. First operand 207 states and 257 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2025-03-04 07:15:04,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 07:15:08,202 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 [] [2025-03-04 07:15:09,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:15:09,939 INFO L93 Difference]: Finished difference Result 277 states and 346 transitions. [2025-03-04 07:15:09,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 07:15:09,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 75 [2025-03-04 07:15:09,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:15:09,943 INFO L225 Difference]: With dead ends: 277 [2025-03-04 07:15:09,943 INFO L226 Difference]: Without dead ends: 277 [2025-03-04 07:15:09,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:15:09,944 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 274 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2025-03-04 07:15:09,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 329 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2025-03-04 07:15:09,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2025-03-04 07:15:09,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 209. [2025-03-04 07:15:09,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 203 states have (on average 1.2364532019704433) internal successors, (251), 204 states have internal predecessors, (251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 07:15:09,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 257 transitions. [2025-03-04 07:15:09,954 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 257 transitions. Word has length 75 [2025-03-04 07:15:09,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:15:09,955 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 257 transitions. [2025-03-04 07:15:09,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2025-03-04 07:15:09,955 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 257 transitions. [2025-03-04 07:15:09,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-04 07:15:09,956 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:15:09,957 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:15:09,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 07:15:10,157 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 [2025-03-04 07:15:10,157 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:15:10,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:15:10,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1793876878, now seen corresponding path program 1 times [2025-03-04 07:15:10,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:15:10,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803183912] [2025-03-04 07:15:10,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:15:10,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:15:10,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:15:10,160 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) [2025-03-04 07:15:10,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 07:15:10,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-04 07:15:10,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-04 07:15:10,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:15:10,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:15:10,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 07:15:10,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:15:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-04 07:15:10,483 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:15:10,483 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:15:10,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803183912] [2025-03-04 07:15:10,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803183912] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:15:10,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:15:10,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:15:10,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908412603] [2025-03-04 07:15:10,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:15:10,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:15:10,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:15:10,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:15:10,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:15:10,485 INFO L87 Difference]: Start difference. First operand 209 states and 257 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2025-03-04 07:15:10,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:15:10,588 INFO L93 Difference]: Finished difference Result 175 states and 201 transitions. [2025-03-04 07:15:10,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 07:15:10,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 76 [2025-03-04 07:15:10,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:15:10,589 INFO L225 Difference]: With dead ends: 175 [2025-03-04 07:15:10,589 INFO L226 Difference]: Without dead ends: 175 [2025-03-04 07:15:10,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:15:10,591 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 32 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 388 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 [2025-03-04 07:15:10,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 388 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:15:10,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-04 07:15:10,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-03-04 07:15:10,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 169 states have (on average 1.1538461538461537) internal successors, (195), 170 states have internal predecessors, (195), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 07:15:10,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 201 transitions. [2025-03-04 07:15:10,598 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 201 transitions. Word has length 76 [2025-03-04 07:15:10,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:15:10,599 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 201 transitions. [2025-03-04 07:15:10,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2025-03-04 07:15:10,599 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 201 transitions. [2025-03-04 07:15:10,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-04 07:15:10,603 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:15:10,604 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:15:10,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-04 07:15:10,804 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 [2025-03-04 07:15:10,804 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:15:10,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:15:10,805 INFO L85 PathProgramCache]: Analyzing trace with hash 407933159, now seen corresponding path program 1 times [2025-03-04 07:15:10,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:15:10,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806152720] [2025-03-04 07:15:10,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:15:10,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:15:10,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:15:10,808 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) [2025-03-04 07:15:10,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 07:15:10,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-04 07:15:11,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-04 07:15:11,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:15:11,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:15:11,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 07:15:11,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:15:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 07:15:11,134 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:15:11,134 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:15:11,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806152720] [2025-03-04 07:15:11,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806152720] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:15:11,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:15:11,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:15:11,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882912352] [2025-03-04 07:15:11,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:15:11,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:15:11,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:15:11,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:15:11,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:15:11,135 INFO L87 Difference]: Start difference. First operand 175 states and 201 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2025-03-04 07:15:11,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:15:11,174 INFO L93 Difference]: Finished difference Result 178 states and 205 transitions. [2025-03-04 07:15:11,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:15:11,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 76 [2025-03-04 07:15:11,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:15:11,178 INFO L225 Difference]: With dead ends: 178 [2025-03-04 07:15:11,178 INFO L226 Difference]: Without dead ends: 178 [2025-03-04 07:15:11,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:15:11,178 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 452 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 [2025-03-04 07:15:11,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 452 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:15:11,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2025-03-04 07:15:11,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2025-03-04 07:15:11,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 171 states have (on average 1.1578947368421053) internal successors, (198), 173 states have internal predecessors, (198), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 07:15:11,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 205 transitions. [2025-03-04 07:15:11,186 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 205 transitions. Word has length 76 [2025-03-04 07:15:11,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:15:11,186 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 205 transitions. [2025-03-04 07:15:11,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2025-03-04 07:15:11,186 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 205 transitions. [2025-03-04 07:15:11,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-03-04 07:15:11,187 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:15:11,187 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:15:11,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 07:15:11,391 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 [2025-03-04 07:15:11,391 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:15:11,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:15:11,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1641863901, now seen corresponding path program 1 times [2025-03-04 07:15:11,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:15:11,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1472423623] [2025-03-04 07:15:11,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:15:11,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:15:11,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:15:11,395 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) [2025-03-04 07:15:11,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 07:15:11,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-04 07:15:11,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-04 07:15:11,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:15:11,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:15:11,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 07:15:11,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:15:11,858 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 07:15:11,858 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:15:12,111 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 07:15:12,111 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:15:12,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472423623] [2025-03-04 07:15:12,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472423623] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:15:12,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:15:12,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2025-03-04 07:15:12,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253259229] [2025-03-04 07:15:12,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:15:12,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:15:12,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:15:12,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:15:12,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:15:12,113 INFO L87 Difference]: Start difference. First operand 178 states and 205 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 07:15:12,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:15:12,416 INFO L93 Difference]: Finished difference Result 376 states and 441 transitions. [2025-03-04 07:15:12,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:15:12,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 78 [2025-03-04 07:15:12,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:15:12,418 INFO L225 Difference]: With dead ends: 376 [2025-03-04 07:15:12,418 INFO L226 Difference]: Without dead ends: 376 [2025-03-04 07:15:12,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-04 07:15:12,418 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 304 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 07:15:12,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 744 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 07:15:12,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2025-03-04 07:15:12,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2025-03-04 07:15:12,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 366 states have (on average 1.1612021857923498) internal successors, (425), 368 states have internal predecessors, (425), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-03-04 07:15:12,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 441 transitions. [2025-03-04 07:15:12,427 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 441 transitions. Word has length 78 [2025-03-04 07:15:12,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:15:12,428 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 441 transitions. [2025-03-04 07:15:12,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 07:15:12,429 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 441 transitions. [2025-03-04 07:15:12,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-03-04 07:15:12,431 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:15:12,431 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:15:12,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 07:15:12,631 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 [2025-03-04 07:15:12,632 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:15:12,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:15:12,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1873762307, now seen corresponding path program 1 times [2025-03-04 07:15:12,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:15:12,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1160962503] [2025-03-04 07:15:12,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:15:12,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:15:12,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:15:12,635 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) [2025-03-04 07:15:12,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 07:15:12,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-03-04 07:15:13,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-03-04 07:15:13,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:15:13,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:15:13,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:15:13,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:15:13,351 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 112 proven. 1 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2025-03-04 07:15:13,352 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:15:13,489 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 112 proven. 1 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2025-03-04 07:15:13,490 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:15:13,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160962503] [2025-03-04 07:15:13,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160962503] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:15:13,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:15:13,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-04 07:15:13,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143989650] [2025-03-04 07:15:13,491 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:15:13,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 07:15:13,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:15:13,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 07:15:13,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-04 07:15:13,493 INFO L87 Difference]: Start difference. First operand 376 states and 441 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 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) [2025-03-04 07:15:13,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:15:13,652 INFO L93 Difference]: Finished difference Result 387 states and 464 transitions. [2025-03-04 07:15:13,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 07:15:13,653 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 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 237 [2025-03-04 07:15:13,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:15:13,654 INFO L225 Difference]: With dead ends: 387 [2025-03-04 07:15:13,655 INFO L226 Difference]: Without dead ends: 387 [2025-03-04 07:15:13,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-04 07:15:13,657 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 4 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:15:13,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 599 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:15:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2025-03-04 07:15:13,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2025-03-04 07:15:13,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 374 states have (on average 1.1737967914438503) internal successors, (439), 376 states have internal predecessors, (439), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2025-03-04 07:15:13,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 459 transitions. [2025-03-04 07:15:13,667 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 459 transitions. Word has length 237 [2025-03-04 07:15:13,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:15:13,668 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 459 transitions. [2025-03-04 07:15:13,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 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) [2025-03-04 07:15:13,668 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 459 transitions. [2025-03-04 07:15:13,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2025-03-04 07:15:13,669 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:15:13,670 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:15:13,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-04 07:15:13,870 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 [2025-03-04 07:15:13,870 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:15:13,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:15:13,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1201691143, now seen corresponding path program 2 times [2025-03-04 07:15:13,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:15:13,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859846996] [2025-03-04 07:15:13,871 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 07:15:13,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:15:13,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:15:13,874 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) [2025-03-04 07:15:13,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 07:15:14,209 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 241 statements into 2 equivalence classes. [2025-03-04 07:15:14,516 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 241 of 241 statements. [2025-03-04 07:15:14,516 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 07:15:14,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:15:14,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 1277 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 07:15:14,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:15:14,627 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 124 proven. 3 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2025-03-04 07:15:14,627 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:15:14,754 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 106 proven. 20 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2025-03-04 07:15:14,754 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:15:14,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859846996] [2025-03-04 07:15:14,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859846996] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:15:14,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:15:14,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-04 07:15:14,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492951951] [2025-03-04 07:15:14,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:15:14,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 07:15:14,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:15:14,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 07:15:14,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-04 07:15:14,756 INFO L87 Difference]: Start difference. First operand 385 states and 459 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 07:15:15,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:15:15,053 INFO L93 Difference]: Finished difference Result 393 states and 469 transitions. [2025-03-04 07:15:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 07:15:15,054 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 241 [2025-03-04 07:15:15,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:15:15,057 INFO L225 Difference]: With dead ends: 393 [2025-03-04 07:15:15,057 INFO L226 Difference]: Without dead ends: 391 [2025-03-04 07:15:15,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-03-04 07:15:15,058 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 5 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 07:15:15,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 754 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 07:15:15,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2025-03-04 07:15:15,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 389. [2025-03-04 07:15:15,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 378 states have (on average 1.1772486772486772) internal successors, (445), 380 states have internal predecessors, (445), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-03-04 07:15:15,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 461 transitions. [2025-03-04 07:15:15,068 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 461 transitions. Word has length 241 [2025-03-04 07:15:15,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:15:15,069 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 461 transitions. [2025-03-04 07:15:15,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 07:15:15,069 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 461 transitions. [2025-03-04 07:15:15,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2025-03-04 07:15:15,071 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:15:15,071 INFO L218 NwaCegarLoop]: trace histogram [10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:15:15,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-04 07:15:15,271 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 [2025-03-04 07:15:15,272 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:15:15,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:15:15,272 INFO L85 PathProgramCache]: Analyzing trace with hash 902750585, now seen corresponding path program 3 times [2025-03-04 07:15:15,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:15:15,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1590989849] [2025-03-04 07:15:15,273 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 07:15:15,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:15:15,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:15:15,275 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) [2025-03-04 07:15:15,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 07:15:15,653 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 245 statements into 9 equivalence classes.