./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:08:23,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:08:23,780 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-08 06:08:23,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:08:23,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:08:23,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:08:23,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:08:23,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:08:23,816 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:08:23,816 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:08:23,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:08:23,817 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:08:23,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:08:23,817 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:08:23,817 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:08:23,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:08:23,818 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 06:08:23,818 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:08:23,818 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:08:23,818 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:08:23,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:08:23,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 06:08:23,818 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:08:23,818 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:08:23,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:08:23,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 06:08:23,818 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:08:23,819 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:08:23,819 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:08:23,819 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 06:08:23,819 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:08:23,819 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:08:23,819 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:08:23,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:08:23,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:08:23,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:08:23,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:08:23,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:08:23,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:08:23,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 06:08:23,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 06:08:23,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:08:23,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:08:23,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:08:23,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:08:23,820 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-jdk21/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 -> d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d [2025-02-08 06:08:24,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:08:24,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:08:24,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:08:24,103 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:08:24,104 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:08:24,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2025-02-08 06:08:25,379 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/54a18650e/75dada31ea1440338f5fd2143123f593/FLAG390835ef9 [2025-02-08 06:08:25,711 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:08:25,712 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2025-02-08 06:08:25,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/54a18650e/75dada31ea1440338f5fd2143123f593/FLAG390835ef9 [2025-02-08 06:08:25,741 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/54a18650e/75dada31ea1440338f5fd2143123f593 [2025-02-08 06:08:25,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:08:25,744 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:08:25,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:08:25,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:08:25,754 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:08:25,755 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:08:25" (1/1) ... [2025-02-08 06:08:25,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ab434f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:25, skipping insertion in model container [2025-02-08 06:08:25,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:08:25" (1/1) ... [2025-02-08 06:08:25,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:08:26,114 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,148 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,152 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,154 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,159 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,187 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,187 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,189 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,189 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,191 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,192 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,193 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,195 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,199 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,200 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,201 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,203 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,204 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,205 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,207 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:26,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:08:26,231 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) [2025-02-08 06:08:26,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e19bb73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:26, skipping insertion in model container [2025-02-08 06:08:26,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:08:26,233 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 06:08:26,236 INFO L158 Benchmark]: Toolchain (without parser) took 489.66ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 82.9MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 06:08:26,236 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:08:26,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.60ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 82.9MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 06:08:26,237 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 486.60ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 82.9MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:08:28,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:08:28,251 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-08 06:08:28,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:08:28,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:08:28,277 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:08:28,278 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:08:28,278 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:08:28,278 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:08:28,278 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:08:28,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:08:28,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:08:28,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:08:28,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:08:28,279 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:08:28,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:08:28,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 06:08:28,279 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:08:28,280 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:08:28,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:08:28,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:08:28,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 06:08:28,280 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:08:28,280 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:08:28,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:08:28,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 06:08:28,280 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:08:28,281 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 06:08:28,281 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 06:08:28,281 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:08:28,281 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:08:28,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 06:08:28,281 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:08:28,281 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:08:28,281 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:08:28,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:08:28,282 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:08:28,282 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:08:28,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:08:28,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:08:28,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:08:28,282 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 06:08:28,282 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 06:08:28,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:08:28,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:08:28,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:08:28,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:08:28,283 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-jdk21/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 -> d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d [2025-02-08 06:08:28,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:08:28,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:08:28,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:08:28,576 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:08:28,576 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:08:28,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2025-02-08 06:08:29,942 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/94e684dce/abd4c3c52f8841d8b3e342a764fd2c6d/FLAGe27755291 [2025-02-08 06:08:30,281 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:08:30,284 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2025-02-08 06:08:30,303 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/94e684dce/abd4c3c52f8841d8b3e342a764fd2c6d/FLAGe27755291 [2025-02-08 06:08:30,317 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/94e684dce/abd4c3c52f8841d8b3e342a764fd2c6d [2025-02-08 06:08:30,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:08:30,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:08:30,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:08:30,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:08:30,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:08:30,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:08:30" (1/1) ... [2025-02-08 06:08:30,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@165c7cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:30, skipping insertion in model container [2025-02-08 06:08:30,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:08:30" (1/1) ... [2025-02-08 06:08:30,355 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:08:30,665 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,699 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,705 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,710 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,716 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,741 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,741 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,744 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,744 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,746 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,747 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,748 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,749 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,752 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,753 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,755 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,755 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,756 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,757 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,759 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:08:30,777 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 06:08:30,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:08:30,817 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,830 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,832 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,834 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,837 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,864 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,865 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,866 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,866 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,872 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,873 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,873 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,874 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,880 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,881 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,882 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,887 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,887 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,888 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,890 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:30,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:08:30,897 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 06:08:31,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:08:31,035 INFO L204 MainTranslator]: Completed translation [2025-02-08 06:08:31,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31 WrapperNode [2025-02-08 06:08:31,037 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:08:31,038 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 06:08:31,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 06:08:31,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 06:08:31,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (1/1) ... [2025-02-08 06:08:31,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (1/1) ... [2025-02-08 06:08:31,137 INFO L138 Inliner]: procedures = 180, calls = 330, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1156 [2025-02-08 06:08:31,138 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 06:08:31,138 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 06:08:31,138 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 06:08:31,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 06:08:31,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (1/1) ... [2025-02-08 06:08:31,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (1/1) ... [2025-02-08 06:08:31,161 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (1/1) ... [2025-02-08 06:08:31,257 INFO L175 MemorySlicer]: Split 303 memory accesses to 3 slices as follows [267, 2, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0]. The 62 writes are split as follows [58, 0, 4]. [2025-02-08 06:08:31,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (1/1) ... [2025-02-08 06:08:31,258 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (1/1) ... [2025-02-08 06:08:31,288 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (1/1) ... [2025-02-08 06:08:31,290 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (1/1) ... [2025-02-08 06:08:31,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (1/1) ... [2025-02-08 06:08:31,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (1/1) ... [2025-02-08 06:08:31,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 06:08:31,306 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 06:08:31,306 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 06:08:31,307 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 06:08:31,308 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (1/1) ... [2025-02-08 06:08:31,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:08:31,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:31,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 06:08:31,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 06:08:31,382 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 06:08:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 06:08:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 06:08:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 06:08:31,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 06:08:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 06:08:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 06:08:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 06:08:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 06:08:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 06:08:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 06:08:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 06:08:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 06:08:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 06:08:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 06:08:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 06:08:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 06:08:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 06:08:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 06:08:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 06:08:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 06:08:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 06:08:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 06:08:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 06:08:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 06:08:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 06:08:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 06:08:31,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 06:08:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 06:08:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 06:08:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 06:08:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 06:08:31,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 06:08:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 06:08:31,607 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 06:08:31,609 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 06:08:39,452 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L733: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-08 06:08:39,525 INFO L? ?]: Removed 149 outVars from TransFormulas that were not future-live. [2025-02-08 06:08:39,526 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 06:08:39,536 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 06:08:39,536 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 06:08:39,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:08:39 BoogieIcfgContainer [2025-02-08 06:08:39,544 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 06:08:39,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 06:08:39,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 06:08:39,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 06:08:39,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 06:08:30" (1/3) ... [2025-02-08 06:08:39,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32765c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:08:39, skipping insertion in model container [2025-02-08 06:08:39,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:31" (2/3) ... [2025-02-08 06:08:39,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32765c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:08:39, skipping insertion in model container [2025-02-08 06:08:39,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:08:39" (3/3) ... [2025-02-08 06:08:39,556 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-2.i [2025-02-08 06:08:39,571 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 06:08:39,573 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test3-2.i that has 6 procedures, 243 locations, 1 initial locations, 43 loop locations, and 2 error locations. [2025-02-08 06:08:39,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 06:08:39,631 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;@24720f2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 06:08:39,631 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 06:08:39,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 235 states, 218 states have (on average 1.665137614678899) internal successors, (363), 227 states have internal predecessors, (363), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 06:08:39,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-08 06:08:39,642 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:39,642 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:39,643 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:39,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:39,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1680111386, now seen corresponding path program 1 times [2025-02-08 06:08:39,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:08:39,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185993620] [2025-02-08 06:08:39,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:39,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:39,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:39,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:39,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 06:08:39,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 06:08:39,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 06:08:39,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:39,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:39,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 06:08:39,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:08:39,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:08:39,883 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:08:39,884 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:08:39,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185993620] [2025-02-08 06:08:39,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185993620] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:39,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:39,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 06:08:39,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434920138] [2025-02-08 06:08:39,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:39,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 06:08:39,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:08:39,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 06:08:39,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 06:08:39,910 INFO L87 Difference]: Start difference. First operand has 235 states, 218 states have (on average 1.665137614678899) internal successors, (363), 227 states have internal predecessors, (363), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:08:39,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:39,931 INFO L93 Difference]: Finished difference Result 233 states and 308 transitions. [2025-02-08 06:08:39,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 06:08:39,933 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-02-08 06:08:39,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:39,938 INFO L225 Difference]: With dead ends: 233 [2025-02-08 06:08:39,939 INFO L226 Difference]: Without dead ends: 228 [2025-02-08 06:08:39,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 06:08:39,942 INFO L435 NwaCegarLoop]: 308 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:39,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:08:39,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2025-02-08 06:08:39,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2025-02-08 06:08:39,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 215 states have (on average 1.330232558139535) internal successors, (286), 221 states have internal predecessors, (286), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 299 transitions. [2025-02-08 06:08:39,980 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 299 transitions. Word has length 10 [2025-02-08 06:08:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:39,980 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 299 transitions. [2025-02-08 06:08:39,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:08:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 299 transitions. [2025-02-08 06:08:39,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 06:08:39,981 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:39,981 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:39,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 06:08:40,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:40,182 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:40,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:40,183 INFO L85 PathProgramCache]: Analyzing trace with hash -535803223, now seen corresponding path program 1 times [2025-02-08 06:08:40,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:08:40,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [646752464] [2025-02-08 06:08:40,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:40,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:40,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:40,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:40,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 06:08:40,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 06:08:40,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 06:08:40,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:40,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:40,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:08:40,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:08:40,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:08:40,429 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:08:40,429 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:08:40,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646752464] [2025-02-08 06:08:40,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646752464] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:40,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:40,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 06:08:40,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875999521] [2025-02-08 06:08:40,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:40,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:08:40,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:08:40,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:08:40,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:08:40,432 INFO L87 Difference]: Start difference. First operand 228 states and 299 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2025-02-08 06:08:41,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:41,412 INFO L93 Difference]: Finished difference Result 378 states and 499 transitions. [2025-02-08 06:08:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:08:41,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2025-02-08 06:08:41,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:41,419 INFO L225 Difference]: With dead ends: 378 [2025-02-08 06:08:41,419 INFO L226 Difference]: Without dead ends: 378 [2025-02-08 06:08:41,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:08:41,420 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 182 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:41,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 541 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-08 06:08:41,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2025-02-08 06:08:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 342. [2025-02-08 06:08:41,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 329 states have (on average 1.3404255319148937) internal successors, (441), 335 states have internal predecessors, (441), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:41,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 454 transitions. [2025-02-08 06:08:41,458 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 454 transitions. Word has length 12 [2025-02-08 06:08:41,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:41,458 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 454 transitions. [2025-02-08 06:08:41,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2025-02-08 06:08:41,458 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 454 transitions. [2025-02-08 06:08:41,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 06:08:41,458 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:41,458 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:41,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 06:08:41,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:41,659 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:41,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:41,660 INFO L85 PathProgramCache]: Analyzing trace with hash -535773432, now seen corresponding path program 1 times [2025-02-08 06:08:41,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:08:41,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630345195] [2025-02-08 06:08:41,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:41,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:41,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:41,664 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:41,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 06:08:41,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 06:08:41,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 06:08:41,784 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:41,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:41,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:08:41,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:08:41,808 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:08:41,809 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:08:41,809 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:08:41,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-08 06:08:41,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 06:08:41,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-08 06:08:41,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:08:41,900 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:08:41,901 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:08:41,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630345195] [2025-02-08 06:08:41,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630345195] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:41,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:41,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:08:41,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67671059] [2025-02-08 06:08:41,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:41,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:08:41,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:08:41,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:08:41,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:08:41,902 INFO L87 Difference]: Start difference. First operand 342 states and 454 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2025-02-08 06:08:42,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:42,399 INFO L93 Difference]: Finished difference Result 540 states and 719 transitions. [2025-02-08 06:08:42,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:08:42,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2025-02-08 06:08:42,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:42,402 INFO L225 Difference]: With dead ends: 540 [2025-02-08 06:08:42,402 INFO L226 Difference]: Without dead ends: 540 [2025-02-08 06:08:42,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:08:42,403 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 268 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:42,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 825 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 06:08:42,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2025-02-08 06:08:42,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 341. [2025-02-08 06:08:42,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 328 states have (on average 1.3384146341463414) internal successors, (439), 334 states have internal predecessors, (439), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:42,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 452 transitions. [2025-02-08 06:08:42,418 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 452 transitions. Word has length 12 [2025-02-08 06:08:42,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:42,419 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 452 transitions. [2025-02-08 06:08:42,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2025-02-08 06:08:42,419 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 452 transitions. [2025-02-08 06:08:42,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-02-08 06:08:42,420 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:42,421 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:42,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 06:08:42,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:42,622 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:42,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:42,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1024667544, now seen corresponding path program 1 times [2025-02-08 06:08:42,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:08:42,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059656222] [2025-02-08 06:08:42,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:42,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:42,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:42,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:42,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 06:08:42,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-08 06:08:43,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-08 06:08:43,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:43,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:43,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:08:43,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:08:43,282 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:08:43,283 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:08:43,283 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:08:43,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059656222] [2025-02-08 06:08:43,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059656222] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:43,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:43,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:08:43,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558642057] [2025-02-08 06:08:43,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:43,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:08:43,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:08:43,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:08:43,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:08:43,285 INFO L87 Difference]: Start difference. First operand 341 states and 452 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:47,820 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 [] [2025-02-08 06:08:51,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:08:54,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:54,015 INFO L93 Difference]: Finished difference Result 519 states and 689 transitions. [2025-02-08 06:08:54,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:08:54,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2025-02-08 06:08:54,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:54,019 INFO L225 Difference]: With dead ends: 519 [2025-02-08 06:08:54,019 INFO L226 Difference]: Without dead ends: 519 [2025-02-08 06:08:54,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:08:54,020 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 630 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:54,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 595 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 122 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2025-02-08 06:08:54,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2025-02-08 06:08:54,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 434. [2025-02-08 06:08:54,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 421 states have (on average 1.342042755344418) internal successors, (565), 427 states have internal predecessors, (565), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:54,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 578 transitions. [2025-02-08 06:08:54,035 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 578 transitions. Word has length 82 [2025-02-08 06:08:54,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:54,035 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 578 transitions. [2025-02-08 06:08:54,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:54,036 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 578 transitions. [2025-02-08 06:08:54,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-02-08 06:08:54,039 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:54,039 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:54,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 06:08:54,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:54,240 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:54,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:54,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2088652368, now seen corresponding path program 1 times [2025-02-08 06:08:54,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:08:54,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1843972537] [2025-02-08 06:08:54,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:54,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:54,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:54,244 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:54,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 06:08:54,442 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-08 06:08:54,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-08 06:08:54,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:54,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:54,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:08:54,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:08:54,593 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:08:54,593 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:08:54,593 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:08:54,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843972537] [2025-02-08 06:08:54,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843972537] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:54,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:54,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:08:54,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095339362] [2025-02-08 06:08:54,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:54,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:08:54,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:08:54,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:08:54,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:08:54,600 INFO L87 Difference]: Start difference. First operand 434 states and 578 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:54,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:54,698 INFO L93 Difference]: Finished difference Result 440 states and 568 transitions. [2025-02-08 06:08:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:08:54,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2025-02-08 06:08:54,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:54,700 INFO L225 Difference]: With dead ends: 440 [2025-02-08 06:08:54,700 INFO L226 Difference]: Without dead ends: 440 [2025-02-08 06:08:54,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:08:54,701 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 30 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:54,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 791 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:08:54,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2025-02-08 06:08:54,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2025-02-08 06:08:54,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 427 states have (on average 1.2997658079625294) internal successors, (555), 433 states have internal predecessors, (555), 10 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:08:54,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 568 transitions. [2025-02-08 06:08:54,711 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 568 transitions. Word has length 85 [2025-02-08 06:08:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:54,711 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 568 transitions. [2025-02-08 06:08:54,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 568 transitions. [2025-02-08 06:08:54,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-02-08 06:08:54,713 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:54,713 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:54,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 06:08:54,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:54,914 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:54,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:54,914 INFO L85 PathProgramCache]: Analyzing trace with hash 540243465, now seen corresponding path program 1 times [2025-02-08 06:08:54,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:08:54,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1884815046] [2025-02-08 06:08:54,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:54,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:54,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:54,917 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:54,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 06:08:55,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-08 06:08:55,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-08 06:08:55,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:55,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:55,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:08:55,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:08:55,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 06:08:55,286 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:08:55,286 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:08:55,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884815046] [2025-02-08 06:08:55,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884815046] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:55,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:55,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:08:55,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331417241] [2025-02-08 06:08:55,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:55,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:08:55,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:08:55,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:08:55,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:08:55,288 INFO L87 Difference]: Start difference. First operand 440 states and 568 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:55,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:55,318 INFO L93 Difference]: Finished difference Result 443 states and 572 transitions. [2025-02-08 06:08:55,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:08:55,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2025-02-08 06:08:55,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:55,321 INFO L225 Difference]: With dead ends: 443 [2025-02-08 06:08:55,321 INFO L226 Difference]: Without dead ends: 443 [2025-02-08 06:08:55,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:08:55,322 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 0 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 851 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 [2025-02-08 06:08:55,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 851 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:08:55,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2025-02-08 06:08:55,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2025-02-08 06:08:55,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 429 states have (on average 1.3006993006993006) internal successors, (558), 436 states have internal predecessors, (558), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 06:08:55,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 572 transitions. [2025-02-08 06:08:55,334 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 572 transitions. Word has length 85 [2025-02-08 06:08:55,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:55,335 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 572 transitions. [2025-02-08 06:08:55,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:55,335 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 572 transitions. [2025-02-08 06:08:55,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-02-08 06:08:55,337 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:55,337 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:55,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 06:08:55,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:55,538 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:55,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:55,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1007954843, now seen corresponding path program 1 times [2025-02-08 06:08:55,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:08:55,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875345227] [2025-02-08 06:08:55,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:55,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:55,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:55,541 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:55,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 06:08:55,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-08 06:08:55,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-08 06:08:55,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:55,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:55,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 06:08:55,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:08:55,877 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:08:55,878 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:08:55,878 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:08:55,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-08 06:08:55,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 06:08:55,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-08 06:08:55,976 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 06:08:55,976 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:08:55,976 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:08:55,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875345227] [2025-02-08 06:08:55,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875345227] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:55,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:55,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:08:55,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771850633] [2025-02-08 06:08:55,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:55,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:08:55,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:08:55,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:08:55,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:08:55,977 INFO L87 Difference]: Start difference. First operand 443 states and 572 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:56,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:56,454 INFO L93 Difference]: Finished difference Result 586 states and 758 transitions. [2025-02-08 06:08:56,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:08:56,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2025-02-08 06:08:56,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:56,462 INFO L225 Difference]: With dead ends: 586 [2025-02-08 06:08:56,462 INFO L226 Difference]: Without dead ends: 586 [2025-02-08 06:08:56,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:08:56,463 INFO L435 NwaCegarLoop]: 295 mSDtfsCounter, 203 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:56,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 841 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 06:08:56,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2025-02-08 06:08:56,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 445. [2025-02-08 06:08:56,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 431 states have (on average 1.2993039443155452) internal successors, (560), 438 states have internal predecessors, (560), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 06:08:56,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 574 transitions. [2025-02-08 06:08:56,473 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 574 transitions. Word has length 87 [2025-02-08 06:08:56,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:56,474 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 574 transitions. [2025-02-08 06:08:56,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:56,474 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 574 transitions. [2025-02-08 06:08:56,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-02-08 06:08:56,476 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:56,476 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:56,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 06:08:56,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:56,677 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:56,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:56,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1636784543, now seen corresponding path program 1 times [2025-02-08 06:08:56,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:08:56,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [316241010] [2025-02-08 06:08:56,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:56,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:56,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:56,680 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:56,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 06:08:56,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-08 06:08:57,014 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-08 06:08:57,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:57,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:57,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:08:57,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:08:57,050 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 06:08:57,050 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:08:57,050 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:08:57,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316241010] [2025-02-08 06:08:57,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316241010] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:08:57,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:08:57,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:08:57,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509869614] [2025-02-08 06:08:57,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:08:57,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:08:57,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:08:57,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:08:57,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:08:57,051 INFO L87 Difference]: Start difference. First operand 445 states and 574 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:57,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:57,161 INFO L93 Difference]: Finished difference Result 454 states and 559 transitions. [2025-02-08 06:08:57,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:08:57,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 126 [2025-02-08 06:08:57,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:57,163 INFO L225 Difference]: With dead ends: 454 [2025-02-08 06:08:57,163 INFO L226 Difference]: Without dead ends: 454 [2025-02-08 06:08:57,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:08:57,164 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 30 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:57,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 758 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:08:57,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2025-02-08 06:08:57,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2025-02-08 06:08:57,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 440 states have (on average 1.2386363636363635) internal successors, (545), 447 states have internal predecessors, (545), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 06:08:57,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 559 transitions. [2025-02-08 06:08:57,176 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 559 transitions. Word has length 126 [2025-02-08 06:08:57,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:57,177 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 559 transitions. [2025-02-08 06:08:57,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:08:57,177 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 559 transitions. [2025-02-08 06:08:57,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-02-08 06:08:57,178 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:57,178 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:57,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 06:08:57,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:57,380 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:57,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:57,380 INFO L85 PathProgramCache]: Analyzing trace with hash 501268984, now seen corresponding path program 1 times [2025-02-08 06:08:57,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:08:57,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739360758] [2025-02-08 06:08:57,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:08:57,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:57,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:57,383 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:57,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 06:08:57,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-08 06:08:57,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-08 06:08:57,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:08:57,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:57,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:08:57,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:08:57,803 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 06:08:57,803 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:08:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 06:08:57,908 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:08:57,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739360758] [2025-02-08 06:08:57,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739360758] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:08:57,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:08:57,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 06:08:57,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546263188] [2025-02-08 06:08:57,908 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:08:57,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 06:08:57,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:08:57,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 06:08:57,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 06:08:57,909 INFO L87 Difference]: Start difference. First operand 454 states and 559 transitions. Second operand has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 06:08:58,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:58,058 INFO L93 Difference]: Finished difference Result 465 states and 576 transitions. [2025-02-08 06:08:58,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 06:08:58,060 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 126 [2025-02-08 06:08:58,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:58,062 INFO L225 Difference]: With dead ends: 465 [2025-02-08 06:08:58,062 INFO L226 Difference]: Without dead ends: 465 [2025-02-08 06:08:58,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-08 06:08:58,063 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 5 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:58,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1356 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:08:58,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2025-02-08 06:08:58,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 463. [2025-02-08 06:08:58,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 448 states have (on average 1.2477678571428572) internal successors, (559), 455 states have internal predecessors, (559), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-02-08 06:08:58,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 574 transitions. [2025-02-08 06:08:58,074 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 574 transitions. Word has length 126 [2025-02-08 06:08:58,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:58,074 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 574 transitions. [2025-02-08 06:08:58,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 06:08:58,075 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 574 transitions. [2025-02-08 06:08:58,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-02-08 06:08:58,076 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:58,076 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:58,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 06:08:58,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:58,277 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:58,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:58,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1953615564, now seen corresponding path program 2 times [2025-02-08 06:08:58,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:08:58,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [483308641] [2025-02-08 06:08:58,278 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 06:08:58,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:58,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:58,281 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:58,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 06:08:58,555 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 130 statements into 2 equivalence classes. [2025-02-08 06:08:58,795 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 130 of 130 statements. [2025-02-08 06:08:58,795 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 06:08:58,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:08:58,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 06:08:58,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:08:58,893 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-08 06:08:58,893 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:08:59,063 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 06:08:59,064 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:08:59,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483308641] [2025-02-08 06:08:59,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483308641] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:08:59,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:08:59,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-08 06:08:59,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608033542] [2025-02-08 06:08:59,064 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:08:59,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 06:08:59,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:08:59,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 06:08:59,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-08 06:08:59,065 INFO L87 Difference]: Start difference. First operand 463 states and 574 transitions. Second operand has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:08:59,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:08:59,370 INFO L93 Difference]: Finished difference Result 471 states and 584 transitions. [2025-02-08 06:08:59,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 06:08:59,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 130 [2025-02-08 06:08:59,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:08:59,373 INFO L225 Difference]: With dead ends: 471 [2025-02-08 06:08:59,373 INFO L226 Difference]: Without dead ends: 469 [2025-02-08 06:08:59,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-08 06:08:59,374 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 5 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:08:59,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1901 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 06:08:59,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2025-02-08 06:08:59,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 467. [2025-02-08 06:08:59,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 452 states have (on average 1.25) internal successors, (565), 459 states have internal predecessors, (565), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 06:08:59,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 579 transitions. [2025-02-08 06:08:59,393 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 579 transitions. Word has length 130 [2025-02-08 06:08:59,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:08:59,394 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 579 transitions. [2025-02-08 06:08:59,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:08:59,394 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 579 transitions. [2025-02-08 06:08:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-02-08 06:08:59,394 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:08:59,395 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:08:59,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-08 06:08:59,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:59,595 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:08:59,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:08:59,596 INFO L85 PathProgramCache]: Analyzing trace with hash 246778228, now seen corresponding path program 3 times [2025-02-08 06:08:59,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:08:59,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536093106] [2025-02-08 06:08:59,596 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 06:08:59,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:08:59,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:59,602 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:08:59,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 06:08:59,880 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 134 statements into 6 equivalence classes. [2025-02-08 06:09:00,067 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 117 of 134 statements. [2025-02-08 06:09:00,067 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 06:09:00,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:00,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 06:09:00,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:00,100 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:09:00,100 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:09:00,101 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:09:00,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-08 06:09:01,873 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 06:09:01,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 87 [2025-02-08 06:09:02,115 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 06:09:02,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 74 [2025-02-08 06:09:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-08 06:09:02,141 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:09:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-08 06:09:02,861 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:02,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536093106] [2025-02-08 06:09:02,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536093106] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:09:02,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:09:02,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2025-02-08 06:09:02,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422239860] [2025-02-08 06:09:02,862 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:09:02,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 06:09:02,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:02,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 06:09:02,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-02-08 06:09:02,863 INFO L87 Difference]: Start difference. First operand 467 states and 579 transitions. Second operand has 12 states, 12 states have (on average 15.333333333333334) internal successors, (184), 12 states have internal predecessors, (184), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:09:07,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:09:11,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:09:15,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:09:20,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:09:24,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:09:28,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:09:32,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:09:36,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:09:40,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:09:44,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:09:48,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:09:52,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:09:56,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:10:00,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:10:05,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]