./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_BER_test3-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 07:47:35,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 07:47:35,549 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 07:47:35,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 07:47:35,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 07:47:35,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 07:47:35,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 07:47:35,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 07:47:35,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 07:47:35,574 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 07:47:35,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 07:47:35,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 07:47:35,574 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 07:47:35,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 07:47:35,574 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 07:47:35,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 07:47:35,575 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 07:47:35,575 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 07:47:35,575 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 07:47:35,575 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 07:47:35,575 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 07:47:35,575 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 07:47:35,576 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 07:47:35,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 07:47:35,576 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 07:47:35,576 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 07:47:35,576 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 07:47:35,576 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 07:47:35,576 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 07:47:35,576 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 07:47:35,576 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 07:47:35,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 07:47:35,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 07:47:35,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 07:47:35,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 07:47:35,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 07:47:35,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 07:47:35,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 07:47:35,577 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 07:47:35,577 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 07:47:35,577 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 07:47:35,577 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 07:47:35,577 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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 [2025-02-08 07:47:35,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 07:47:35,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 07:47:35,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 07:47:35,886 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 07:47:35,886 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 07:47:35,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2025-02-08 07:47:37,146 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4111bd96c/213e1d2e12ef4d09b8c8ad81b5b66d68/FLAG6c8415c03 [2025-02-08 07:47:37,493 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 07:47:37,494 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2025-02-08 07:47:37,509 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4111bd96c/213e1d2e12ef4d09b8c8ad81b5b66d68/FLAG6c8415c03 [2025-02-08 07:47:37,719 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4111bd96c/213e1d2e12ef4d09b8c8ad81b5b66d68 [2025-02-08 07:47:37,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 07:47:37,723 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 07:47:37,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 07:47:37,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 07:47:37,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 07:47:37,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:47:37" (1/1) ... [2025-02-08 07:47:37,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e48f2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:37, skipping insertion in model container [2025-02-08 07:47:37,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:47:37" (1/1) ... [2025-02-08 07:47:37,769 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 07:47:38,153 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 07:47:38,187 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 07:47:38,196 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 07:47:38,201 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 07:47:38,211 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:38,243 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 07:47:38,243 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 07:47:38,247 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:38,248 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 07:47:38,251 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:38,254 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:38,255 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 07:47:38,257 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:38,263 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:38,263 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:38,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:38,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:38,268 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 07:47:38,268 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 07:47:38,272 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 07:47:38,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:47:38,299 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 07:47:38,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@13dcf516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:38, skipping insertion in model container [2025-02-08 07:47:38,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 07:47:38,300 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 07:47:38,302 INFO L158 Benchmark]: Toolchain (without parser) took 578.08ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 83.5MB in the end (delta: 19.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 07:47:38,302 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory was 125.5MB in the beginning and 125.1MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 07:47:38,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 575.93ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 83.5MB in the end (delta: 18.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 07:47:38,303 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory was 125.5MB in the beginning and 125.1MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 575.93ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 83.5MB in the end (delta: 18.8MB). 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_BER_test3-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 07:47:40,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 07:47:40,379 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 07:47:40,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 07:47:40,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 07:47:40,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 07:47:40,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 07:47:40,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 07:47:40,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 07:47:40,428 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 07:47:40,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 07:47:40,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 07:47:40,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 07:47:40,429 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 07:47:40,430 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 07:47:40,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 07:47:40,430 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 07:47:40,430 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 07:47:40,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 07:47:40,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 07:47:40,431 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 07:47:40,431 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 07:47:40,431 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 07:47:40,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 07:47:40,431 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 07:47:40,431 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 07:47:40,431 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 07:47:40,431 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 07:47:40,432 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 07:47:40,432 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 07:47:40,432 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 07:47:40,432 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 07:47:40,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 07:47:40,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 07:47:40,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 07:47:40,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 07:47:40,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 07:47:40,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 07:47:40,433 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 07:47:40,433 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 07:47:40,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 07:47:40,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 07:47:40,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 07:47:40,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 07:47:40,433 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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 [2025-02-08 07:47:40,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 07:47:40,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 07:47:40,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 07:47:40,765 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 07:47:40,765 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 07:47:40,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2025-02-08 07:47:42,087 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8eb384816/b69082ddb04e4e2fb71d5d63f275a070/FLAG778fe2b71 [2025-02-08 07:47:42,448 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 07:47:42,448 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2025-02-08 07:47:42,471 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8eb384816/b69082ddb04e4e2fb71d5d63f275a070/FLAG778fe2b71 [2025-02-08 07:47:42,668 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8eb384816/b69082ddb04e4e2fb71d5d63f275a070 [2025-02-08 07:47:42,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 07:47:42,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 07:47:42,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 07:47:42,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 07:47:42,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 07:47:42,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:47:42" (1/1) ... [2025-02-08 07:47:42,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167089e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:42, skipping insertion in model container [2025-02-08 07:47:42,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:47:42" (1/1) ... [2025-02-08 07:47:42,732 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 07:47:43,075 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 07:47:43,111 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 07:47:43,118 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 07:47:43,123 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:43,129 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 07:47:43,163 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 07:47:43,163 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 07:47:43,166 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 07:47:43,167 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:43,172 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 07:47:43,173 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:43,174 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 07:47:43,175 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:43,179 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 07:47:43,180 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:43,182 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 07:47:43,184 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 07:47:43,185 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 07:47:43,185 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 07:47:43,190 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 07:47:43,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:47:43,220 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 07:47:43,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 07:47:43,271 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:43,288 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 07:47:43,290 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 07:47:43,292 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 07:47:43,296 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 07:47:43,315 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:43,315 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:43,317 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:43,317 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:43,319 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:47:43,320 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 07:47:43,320 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 07:47:43,321 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 07:47:43,327 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 07:47:43,327 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 07:47:43,332 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 07:47:43,333 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 07:47:43,333 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 07:47:43,333 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 07:47:43,339 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 07:47:43,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:47:43,353 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 07:47:43,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:47:43,473 INFO L204 MainTranslator]: Completed translation [2025-02-08 07:47:43,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43 WrapperNode [2025-02-08 07:47:43,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 07:47:43,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 07:47:43,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 07:47:43,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 07:47:43,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (1/1) ... [2025-02-08 07:47:43,519 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (1/1) ... [2025-02-08 07:47:43,602 INFO L138 Inliner]: procedures = 180, calls = 330, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1184 [2025-02-08 07:47:43,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 07:47:43,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 07:47:43,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 07:47:43,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 07:47:43,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (1/1) ... [2025-02-08 07:47:43,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (1/1) ... [2025-02-08 07:47:43,636 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (1/1) ... [2025-02-08 07:47:43,728 INFO L175 MemorySlicer]: Split 303 memory accesses to 3 slices as follows [2, 34, 267]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 4, 58]. [2025-02-08 07:47:43,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (1/1) ... [2025-02-08 07:47:43,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (1/1) ... [2025-02-08 07:47:43,787 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (1/1) ... [2025-02-08 07:47:43,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (1/1) ... [2025-02-08 07:47:43,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (1/1) ... [2025-02-08 07:47:43,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (1/1) ... [2025-02-08 07:47:43,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 07:47:43,823 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 07:47:43,823 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 07:47:43,823 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 07:47:43,824 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (1/1) ... [2025-02-08 07:47:43,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 07:47:43,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:47:43,857 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 07:47:43,860 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 07:47:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 07:47:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 07:47:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 07:47:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 07:47:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 07:47:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 07:47:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 07:47:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 07:47:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 07:47:43,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 07:47:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 07:47:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 07:47:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 07:47:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 07:47:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 07:47:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 07:47:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 07:47:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 07:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 07:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 07:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 07:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 07:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 07:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 07:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 07:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 07:47:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 07:47:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 07:47:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 07:47:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 07:47:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 07:47:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 07:47:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 07:47:43,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 07:47:44,103 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 07:47:44,105 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 07:47:48,231 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 07:47:48,347 INFO L? ?]: Removed 1309 outVars from TransFormulas that were not future-live. [2025-02-08 07:47:48,348 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 07:47:48,397 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 07:47:48,397 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 07:47:48,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 07:47:48 BoogieIcfgContainer [2025-02-08 07:47:48,401 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 07:47:48,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 07:47:48,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 07:47:48,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 07:47:48,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 07:47:42" (1/3) ... [2025-02-08 07:47:48,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1180df25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 07:47:48, skipping insertion in model container [2025-02-08 07:47:48,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:47:43" (2/3) ... [2025-02-08 07:47:48,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1180df25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 07:47:48, skipping insertion in model container [2025-02-08 07:47:48,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 07:47:48" (3/3) ... [2025-02-08 07:47:48,413 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-2.i [2025-02-08 07:47:48,426 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 07:47:48,428 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test3-2.i that has 6 procedures, 1295 locations, 1 initial locations, 43 loop locations, and 632 error locations. [2025-02-08 07:47:48,500 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 07:47:48,512 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;@2c3eafc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 07:47:48,513 INFO L334 AbstractCegarLoop]: Starting to check reachability of 632 error locations. [2025-02-08 07:47:48,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 1285 states, 641 states have (on average 2.204368174726989) internal successors, (1413), 1277 states have internal predecessors, (1413), 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 07:47:48,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-02-08 07:47:48,529 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:47:48,529 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-02-08 07:47:48,529 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr629REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:47:48,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:47:48,535 INFO L85 PathProgramCache]: Analyzing trace with hash 47199, now seen corresponding path program 1 times [2025-02-08 07:47:48,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:47:48,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951142460] [2025-02-08 07:47:48,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:47:48,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:47:48,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:47:48,549 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 07:47:48,551 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 07:47:48,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 07:47:48,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 07:47:48,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:47:48,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:47:48,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:47:48,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:47:48,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2025-02-08 07:47:48,772 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 07:47:48,772 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:47:48,773 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:47:48,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951142460] [2025-02-08 07:47:48,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951142460] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:47:48,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:47:48,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 07:47:48,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722973121] [2025-02-08 07:47:48,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:47:48,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:47:48,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:47:48,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:47:48,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:47:48,805 INFO L87 Difference]: Start difference. First operand has 1285 states, 641 states have (on average 2.204368174726989) internal successors, (1413), 1277 states have internal predecessors, (1413), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:47:50,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:47:50,790 INFO L93 Difference]: Finished difference Result 1461 states and 1546 transitions. [2025-02-08 07:47:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:47:50,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2025-02-08 07:47:50,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:47:50,808 INFO L225 Difference]: With dead ends: 1461 [2025-02-08 07:47:50,809 INFO L226 Difference]: Without dead ends: 1456 [2025-02-08 07:47:50,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 07:47:50,813 INFO L435 NwaCegarLoop]: 785 mSDtfsCounter, 1183 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-08 07:47:50,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 953 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-08 07:47:50,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2025-02-08 07:47:50,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1267. [2025-02-08 07:47:50,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 642 states have (on average 2.0654205607476634) internal successors, (1326), 1260 states have internal predecessors, (1326), 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 07:47:50,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1339 transitions. [2025-02-08 07:47:50,934 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1339 transitions. Word has length 2 [2025-02-08 07:47:50,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:47:50,935 INFO L471 AbstractCegarLoop]: Abstraction has 1267 states and 1339 transitions. [2025-02-08 07:47:50,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:47:50,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1339 transitions. [2025-02-08 07:47:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-02-08 07:47:50,935 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:47:50,935 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-02-08 07:47:50,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 07:47:51,136 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 07:47:51,136 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr630REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:47:51,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:47:51,137 INFO L85 PathProgramCache]: Analyzing trace with hash 47200, now seen corresponding path program 1 times [2025-02-08 07:47:51,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:47:51,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1590839191] [2025-02-08 07:47:51,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:47:51,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:47:51,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:47:51,139 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 07:47:51,140 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 07:47:51,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 07:47:51,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 07:47:51,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:47:51,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:47:51,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 07:47:51,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:47:51,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 07:47:51,286 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 07:47:51,286 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:47:51,286 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:47:51,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590839191] [2025-02-08 07:47:51,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590839191] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:47:51,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:47:51,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 07:47:51,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029296562] [2025-02-08 07:47:51,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:47:51,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:47:51,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:47:51,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:47:51,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:47:51,288 INFO L87 Difference]: Start difference. First operand 1267 states and 1339 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:47:53,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:47:53,881 INFO L93 Difference]: Finished difference Result 1892 states and 2012 transitions. [2025-02-08 07:47:53,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:47:53,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2025-02-08 07:47:53,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:47:53,888 INFO L225 Difference]: With dead ends: 1892 [2025-02-08 07:47:53,888 INFO L226 Difference]: Without dead ends: 1892 [2025-02-08 07:47:53,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 07:47:53,890 INFO L435 NwaCegarLoop]: 1041 mSDtfsCounter, 666 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-02-08 07:47:53,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1753 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-02-08 07:47:53,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2025-02-08 07:47:53,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1483. [2025-02-08 07:47:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 859 states have (on average 2.0442374854481957) internal successors, (1756), 1476 states have internal predecessors, (1756), 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 07:47:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 1769 transitions. [2025-02-08 07:47:53,931 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 1769 transitions. Word has length 2 [2025-02-08 07:47:53,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:47:53,931 INFO L471 AbstractCegarLoop]: Abstraction has 1483 states and 1769 transitions. [2025-02-08 07:47:53,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:47:53,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 1769 transitions. [2025-02-08 07:47:53,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 07:47:53,932 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:47:53,932 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:47:53,939 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 07:47:54,133 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 07:47:54,133 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr626REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:47:54,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:47:54,133 INFO L85 PathProgramCache]: Analyzing trace with hash -301923617, now seen corresponding path program 1 times [2025-02-08 07:47:54,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:47:54,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [36336737] [2025-02-08 07:47:54,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:47:54,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:47:54,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:47:54,137 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 07:47:54,139 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 07:47:54,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 07:47:54,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 07:47:54,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:47:54,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:47:54,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 07:47:54,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:47:54,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 07:47:54,353 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2025-02-08 07:47:54,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2025-02-08 07:47:54,438 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 07:47:54,439 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:47:54,439 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:47:54,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36336737] [2025-02-08 07:47:54,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36336737] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:47:54,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:47:54,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:47:54,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750746012] [2025-02-08 07:47:54,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:47:54,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:47:54,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:47:54,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:47:54,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:47:54,441 INFO L87 Difference]: Start difference. First operand 1483 states and 1769 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:47:59,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:47:59,021 INFO L93 Difference]: Finished difference Result 2806 states and 2990 transitions. [2025-02-08 07:47:59,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:47:59,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-08 07:47:59,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:47:59,032 INFO L225 Difference]: With dead ends: 2806 [2025-02-08 07:47:59,033 INFO L226 Difference]: Without dead ends: 2806 [2025-02-08 07:47:59,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:47:59,036 INFO L435 NwaCegarLoop]: 1291 mSDtfsCounter, 1629 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 2715 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-02-08 07:47:59,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 2715 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2025-02-08 07:47:59,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2025-02-08 07:47:59,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 1634. [2025-02-08 07:47:59,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1010 states have (on average 2.0247524752475248) internal successors, (2045), 1627 states have internal predecessors, (2045), 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 07:47:59,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2058 transitions. [2025-02-08 07:47:59,080 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2058 transitions. Word has length 7 [2025-02-08 07:47:59,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:47:59,080 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2058 transitions. [2025-02-08 07:47:59,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:47:59,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2058 transitions. [2025-02-08 07:47:59,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 07:47:59,081 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:47:59,081 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:47:59,090 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 07:47:59,281 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 07:47:59,282 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr623REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:47:59,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:47:59,282 INFO L85 PathProgramCache]: Analyzing trace with hash -769696171, now seen corresponding path program 1 times [2025-02-08 07:47:59,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:47:59,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747924933] [2025-02-08 07:47:59,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:47:59,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:47:59,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:47:59,285 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 07:47:59,289 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 07:47:59,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 07:47:59,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 07:47:59,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:47:59,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:47:59,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:47:59,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:47:59,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2025-02-08 07:47:59,469 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 07:47:59,469 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:47:59,469 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:47:59,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747924933] [2025-02-08 07:47:59,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747924933] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:47:59,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:47:59,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:47:59,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674875656] [2025-02-08 07:47:59,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:47:59,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:47:59,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:47:59,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:47:59,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:47:59,470 INFO L87 Difference]: Start difference. First operand 1634 states and 2058 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:48:01,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:01,060 INFO L93 Difference]: Finished difference Result 2183 states and 2833 transitions. [2025-02-08 07:48:01,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:48:01,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-08 07:48:01,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:01,068 INFO L225 Difference]: With dead ends: 2183 [2025-02-08 07:48:01,069 INFO L226 Difference]: Without dead ends: 2183 [2025-02-08 07:48:01,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 07:48:01,073 INFO L435 NwaCegarLoop]: 1202 mSDtfsCounter, 958 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:01,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 1565 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-08 07:48:01,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2025-02-08 07:48:01,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 1585. [2025-02-08 07:48:01,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1010 states have (on average 1.9653465346534653) internal successors, (1985), 1578 states have internal predecessors, (1985), 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 07:48:01,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 1998 transitions. [2025-02-08 07:48:01,113 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 1998 transitions. Word has length 8 [2025-02-08 07:48:01,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:01,113 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 1998 transitions. [2025-02-08 07:48:01,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:48:01,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 1998 transitions. [2025-02-08 07:48:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 07:48:01,113 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:01,113 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:48:01,123 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 07:48:01,319 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 07:48:01,319 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr624REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:01,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:01,320 INFO L85 PathProgramCache]: Analyzing trace with hash -769696170, now seen corresponding path program 1 times [2025-02-08 07:48:01,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:01,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1891730137] [2025-02-08 07:48:01,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:01,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:01,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:01,323 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 07:48:01,326 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 07:48:01,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 07:48:01,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 07:48:01,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:01,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:01,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 07:48:01,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:01,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 07:48:01,493 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 07:48:01,494 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:01,494 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:01,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891730137] [2025-02-08 07:48:01,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891730137] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:01,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:01,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:48:01,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613652205] [2025-02-08 07:48:01,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:01,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:48:01,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:01,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:48:01,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:48:01,495 INFO L87 Difference]: Start difference. First operand 1585 states and 1998 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:48:03,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:03,905 INFO L93 Difference]: Finished difference Result 2291 states and 2940 transitions. [2025-02-08 07:48:03,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:48:03,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-08 07:48:03,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:03,912 INFO L225 Difference]: With dead ends: 2291 [2025-02-08 07:48:03,912 INFO L226 Difference]: Without dead ends: 2291 [2025-02-08 07:48:03,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 07:48:03,913 INFO L435 NwaCegarLoop]: 1394 mSDtfsCounter, 713 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:03,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 1947 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-08 07:48:03,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2025-02-08 07:48:03,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 1614. [2025-02-08 07:48:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1049 states have (on average 1.9447092469018112) internal successors, (2040), 1607 states have internal predecessors, (2040), 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 07:48:03,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2053 transitions. [2025-02-08 07:48:03,945 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2053 transitions. Word has length 8 [2025-02-08 07:48:03,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:03,946 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 2053 transitions. [2025-02-08 07:48:03,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:48:03,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2053 transitions. [2025-02-08 07:48:03,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 07:48:03,946 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:03,946 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:48:03,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 07:48:04,147 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 07:48:04,147 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr110REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:04,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:04,148 INFO L85 PathProgramCache]: Analyzing trace with hash 2116724641, now seen corresponding path program 1 times [2025-02-08 07:48:04,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:04,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1740005075] [2025-02-08 07:48:04,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:04,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:04,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:04,154 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 07:48:04,155 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 07:48:04,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 07:48:04,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 07:48:04,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:04,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:04,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 07:48:04,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:04,374 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 07:48:04,374 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:04,375 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:04,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740005075] [2025-02-08 07:48:04,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740005075] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:04,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:04,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 07:48:04,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612283239] [2025-02-08 07:48:04,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:04,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:48:04,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:04,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:48:04,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:48:04,379 INFO L87 Difference]: Start difference. First operand 1614 states and 2053 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 07:48:05,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:05,094 INFO L93 Difference]: Finished difference Result 2233 states and 2806 transitions. [2025-02-08 07:48:05,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:48:05,095 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 07:48:05,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:05,100 INFO L225 Difference]: With dead ends: 2233 [2025-02-08 07:48:05,100 INFO L226 Difference]: Without dead ends: 2233 [2025-02-08 07:48:05,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 07:48:05,101 INFO L435 NwaCegarLoop]: 1413 mSDtfsCounter, 640 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 3865 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:05,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 3865 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-08 07:48:05,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2025-02-08 07:48:05,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 1868. [2025-02-08 07:48:05,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1303 states have (on average 1.9577897160399078) internal successors, (2551), 1861 states have internal predecessors, (2551), 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 07:48:05,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 2564 transitions. [2025-02-08 07:48:05,136 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 2564 transitions. Word has length 12 [2025-02-08 07:48:05,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:05,136 INFO L471 AbstractCegarLoop]: Abstraction has 1868 states and 2564 transitions. [2025-02-08 07:48:05,137 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 07:48:05,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 2564 transitions. [2025-02-08 07:48:05,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 07:48:05,137 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:05,137 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:48:05,146 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 07:48:05,337 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 07:48:05,338 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr299REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:05,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:05,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1235606072, now seen corresponding path program 1 times [2025-02-08 07:48:05,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:05,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250973972] [2025-02-08 07:48:05,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:05,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:05,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:05,341 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 07:48:05,342 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 07:48:05,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 07:48:05,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 07:48:05,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:05,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:05,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 07:48:05,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:05,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2025-02-08 07:48:05,532 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 07:48:05,533 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:05,533 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:05,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250973972] [2025-02-08 07:48:05,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250973972] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:05,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:05,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:48:05,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902556699] [2025-02-08 07:48:05,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:05,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:48:05,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:05,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:48:05,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:48:05,535 INFO L87 Difference]: Start difference. First operand 1868 states and 2564 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 07:48:07,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:07,345 INFO L93 Difference]: Finished difference Result 2055 states and 2694 transitions. [2025-02-08 07:48:07,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:48:07,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2025-02-08 07:48:07,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:07,350 INFO L225 Difference]: With dead ends: 2055 [2025-02-08 07:48:07,351 INFO L226 Difference]: Without dead ends: 2055 [2025-02-08 07:48:07,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 07:48:07,351 INFO L435 NwaCegarLoop]: 734 mSDtfsCounter, 1176 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:07,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 1519 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-08 07:48:07,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2025-02-08 07:48:07,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 1845. [2025-02-08 07:48:07,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1845 states, 1303 states have (on average 1.8871834228702993) internal successors, (2459), 1838 states have internal predecessors, (2459), 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 07:48:07,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1845 states to 1845 states and 2472 transitions. [2025-02-08 07:48:07,404 INFO L78 Accepts]: Start accepts. Automaton has 1845 states and 2472 transitions. Word has length 14 [2025-02-08 07:48:07,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:07,405 INFO L471 AbstractCegarLoop]: Abstraction has 1845 states and 2472 transitions. [2025-02-08 07:48:07,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 07:48:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1845 states and 2472 transitions. [2025-02-08 07:48:07,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 07:48:07,406 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:07,406 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:48:07,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-08 07:48:07,607 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 07:48:07,607 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr300REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:07,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:07,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1235606071, now seen corresponding path program 1 times [2025-02-08 07:48:07,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:07,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122367104] [2025-02-08 07:48:07,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:07,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:07,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:07,610 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 07:48:07,611 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 07:48:07,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 07:48:07,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 07:48:07,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:07,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:07,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 07:48:07,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:07,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 07:48:07,837 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 07:48:07,837 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:07,837 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:07,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122367104] [2025-02-08 07:48:07,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122367104] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:07,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:07,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:48:07,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456363014] [2025-02-08 07:48:07,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:07,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:48:07,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:07,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:48:07,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:48:07,838 INFO L87 Difference]: Start difference. First operand 1845 states and 2472 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 07:48:10,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:10,480 INFO L93 Difference]: Finished difference Result 2189 states and 2642 transitions. [2025-02-08 07:48:10,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:48:10,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2025-02-08 07:48:10,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:10,485 INFO L225 Difference]: With dead ends: 2189 [2025-02-08 07:48:10,485 INFO L226 Difference]: Without dead ends: 2189 [2025-02-08 07:48:10,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 07:48:10,485 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 640 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:10,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 2268 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-08 07:48:10,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2025-02-08 07:48:10,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 1794. [2025-02-08 07:48:10,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1252 states have (on average 1.8865814696485623) internal successors, (2362), 1787 states have internal predecessors, (2362), 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 07:48:10,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2375 transitions. [2025-02-08 07:48:10,513 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2375 transitions. Word has length 14 [2025-02-08 07:48:10,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:10,513 INFO L471 AbstractCegarLoop]: Abstraction has 1794 states and 2375 transitions. [2025-02-08 07:48:10,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 07:48:10,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2375 transitions. [2025-02-08 07:48:10,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-08 07:48:10,514 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:10,514 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:48:10,522 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 07:48:10,717 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 07:48:10,717 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr276REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:10,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:10,718 INFO L85 PathProgramCache]: Analyzing trace with hash 350873483, now seen corresponding path program 1 times [2025-02-08 07:48:10,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:10,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1686061812] [2025-02-08 07:48:10,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:10,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:10,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:10,720 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 07:48:10,722 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 07:48:10,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 07:48:10,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 07:48:10,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:10,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:10,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:48:10,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:10,867 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 07:48:10,867 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:10,868 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:10,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686061812] [2025-02-08 07:48:10,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686061812] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:10,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:10,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:48:10,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146986708] [2025-02-08 07:48:10,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:10,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:48:10,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:10,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:48:10,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:48:10,869 INFO L87 Difference]: Start difference. First operand 1794 states and 2375 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 07:48:10,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:10,921 INFO L93 Difference]: Finished difference Result 1722 states and 2252 transitions. [2025-02-08 07:48:10,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 07:48:10,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2025-02-08 07:48:10,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:10,925 INFO L225 Difference]: With dead ends: 1722 [2025-02-08 07:48:10,925 INFO L226 Difference]: Without dead ends: 1722 [2025-02-08 07:48:10,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 07:48:10,926 INFO L435 NwaCegarLoop]: 1167 mSDtfsCounter, 45 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:10,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3478 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 07:48:10,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2025-02-08 07:48:10,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1722. [2025-02-08 07:48:10,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1199 states have (on average 1.8673894912427023) internal successors, (2239), 1715 states have internal predecessors, (2239), 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 07:48:10,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2252 transitions. [2025-02-08 07:48:10,950 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2252 transitions. Word has length 15 [2025-02-08 07:48:10,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:10,950 INFO L471 AbstractCegarLoop]: Abstraction has 1722 states and 2252 transitions. [2025-02-08 07:48:10,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 07:48:10,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2252 transitions. [2025-02-08 07:48:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-08 07:48:10,951 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:10,951 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:48:10,960 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 07:48:11,151 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 07:48:11,151 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:11,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:11,152 INFO L85 PathProgramCache]: Analyzing trace with hash 594130538, now seen corresponding path program 1 times [2025-02-08 07:48:11,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:11,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300090315] [2025-02-08 07:48:11,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:11,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:11,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:11,155 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 07:48:11,156 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 07:48:11,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 07:48:11,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 07:48:11,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:11,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:11,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 07:48:11,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:11,303 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 07:48:11,303 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 07:48:11,304 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 07:48:11,306 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 07:48:11,389 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 07:48:11,389 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 07:48:11,402 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 07:48:11,403 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:11,403 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:11,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300090315] [2025-02-08 07:48:11,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300090315] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:11,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:11,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:48:11,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608267417] [2025-02-08 07:48:11,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:11,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:48:11,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:11,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:48:11,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:48:11,404 INFO L87 Difference]: Start difference. First operand 1722 states and 2252 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 07:48:11,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:11,761 INFO L93 Difference]: Finished difference Result 2465 states and 2846 transitions. [2025-02-08 07:48:11,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:48:11,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2025-02-08 07:48:11,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:11,768 INFO L225 Difference]: With dead ends: 2465 [2025-02-08 07:48:11,769 INFO L226 Difference]: Without dead ends: 2465 [2025-02-08 07:48:11,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 07:48:11,770 INFO L435 NwaCegarLoop]: 1162 mSDtfsCounter, 1102 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:11,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 3468 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 07:48:11,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2025-02-08 07:48:11,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 1402. [2025-02-08 07:48:11,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 879 states have (on average 1.8850967007963595) internal successors, (1657), 1395 states have internal predecessors, (1657), 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 07:48:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1670 transitions. [2025-02-08 07:48:11,798 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1670 transitions. Word has length 15 [2025-02-08 07:48:11,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:11,798 INFO L471 AbstractCegarLoop]: Abstraction has 1402 states and 1670 transitions. [2025-02-08 07:48:11,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 07:48:11,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1670 transitions. [2025-02-08 07:48:11,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 07:48:11,800 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:11,800 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:48:11,809 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 07:48:12,005 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 07:48:12,005 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr615REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:12,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:12,006 INFO L85 PathProgramCache]: Analyzing trace with hash 729179176, now seen corresponding path program 1 times [2025-02-08 07:48:12,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:12,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264267844] [2025-02-08 07:48:12,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:12,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:12,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:12,008 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 07:48:12,009 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 07:48:12,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 07:48:12,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 07:48:12,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:12,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:12,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:48:12,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:12,199 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 07:48:12,200 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:12,200 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:12,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264267844] [2025-02-08 07:48:12,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264267844] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:12,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:12,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 07:48:12,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301199114] [2025-02-08 07:48:12,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:12,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:48:12,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:12,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:48:12,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:48:12,201 INFO L87 Difference]: Start difference. First operand 1402 states and 1670 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 07:48:14,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:14,084 INFO L93 Difference]: Finished difference Result 1786 states and 2148 transitions. [2025-02-08 07:48:14,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:48:14,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2025-02-08 07:48:14,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:14,087 INFO L225 Difference]: With dead ends: 1786 [2025-02-08 07:48:14,087 INFO L226 Difference]: Without dead ends: 1786 [2025-02-08 07:48:14,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 07:48:14,088 INFO L435 NwaCegarLoop]: 729 mSDtfsCounter, 924 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:14,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 1595 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-08 07:48:14,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2025-02-08 07:48:14,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1379. [2025-02-08 07:48:14,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 879 states have (on average 1.8327645051194539) internal successors, (1611), 1372 states have internal predecessors, (1611), 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 07:48:14,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1624 transitions. [2025-02-08 07:48:14,104 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1624 transitions. Word has length 18 [2025-02-08 07:48:14,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:14,104 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 1624 transitions. [2025-02-08 07:48:14,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 07:48:14,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1624 transitions. [2025-02-08 07:48:14,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 07:48:14,105 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:14,105 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:48:14,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 07:48:14,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:14,306 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr616REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:14,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:14,306 INFO L85 PathProgramCache]: Analyzing trace with hash 729179177, now seen corresponding path program 1 times [2025-02-08 07:48:14,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:14,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465491204] [2025-02-08 07:48:14,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:14,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:14,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:14,308 INFO L229 MonitoredProcess]: Starting monitored process 13 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 07:48:14,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 07:48:14,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 07:48:14,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 07:48:14,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:14,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:14,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 07:48:14,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:14,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 07:48:14,566 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 07:48:14,566 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:14,566 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:14,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465491204] [2025-02-08 07:48:14,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465491204] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:14,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:14,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 07:48:14,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607525840] [2025-02-08 07:48:14,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:14,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:48:14,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:14,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:48:14,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:48:14,567 INFO L87 Difference]: Start difference. First operand 1379 states and 1624 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 07:48:17,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:17,169 INFO L93 Difference]: Finished difference Result 2034 states and 2400 transitions. [2025-02-08 07:48:17,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:48:17,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2025-02-08 07:48:17,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:17,174 INFO L225 Difference]: With dead ends: 2034 [2025-02-08 07:48:17,175 INFO L226 Difference]: Without dead ends: 2034 [2025-02-08 07:48:17,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 07:48:17,175 INFO L435 NwaCegarLoop]: 1335 mSDtfsCounter, 750 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:17,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 2702 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-02-08 07:48:17,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2025-02-08 07:48:17,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 1493. [2025-02-08 07:48:17,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 993 states have (on average 1.7613293051359518) internal successors, (1749), 1486 states have internal predecessors, (1749), 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 07:48:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1762 transitions. [2025-02-08 07:48:17,189 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1762 transitions. Word has length 18 [2025-02-08 07:48:17,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:17,190 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 1762 transitions. [2025-02-08 07:48:17,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 07:48:17,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1762 transitions. [2025-02-08 07:48:17,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-08 07:48:17,190 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:17,191 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:48:17,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-08 07:48:17,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:17,391 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr616REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:17,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:17,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1988285917, now seen corresponding path program 1 times [2025-02-08 07:48:17,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:17,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870198344] [2025-02-08 07:48:17,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:17,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:17,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:17,395 INFO L229 MonitoredProcess]: Starting monitored process 14 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 07:48:17,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 07:48:17,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-08 07:48:17,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 07:48:17,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:17,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:17,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 07:48:17,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:17,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 07:48:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:48:17,834 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:48:18,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:48:18,330 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:18,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870198344] [2025-02-08 07:48:18,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870198344] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:48:18,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 07:48:18,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-02-08 07:48:18,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607241551] [2025-02-08 07:48:18,331 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 07:48:18,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 07:48:18,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:18,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 07:48:18,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-08 07:48:18,333 INFO L87 Difference]: Start difference. First operand 1493 states and 1762 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 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 07:48:24,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:24,931 INFO L93 Difference]: Finished difference Result 2390 states and 2890 transitions. [2025-02-08 07:48:24,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 07:48:24,931 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 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 37 [2025-02-08 07:48:24,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:24,937 INFO L225 Difference]: With dead ends: 2390 [2025-02-08 07:48:24,937 INFO L226 Difference]: Without dead ends: 2390 [2025-02-08 07:48:24,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2025-02-08 07:48:24,938 INFO L435 NwaCegarLoop]: 1362 mSDtfsCounter, 2365 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 3683 SdHoareTripleChecker+Invalid, 2409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:24,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2366 Valid, 3683 Invalid, 2409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2025-02-08 07:48:24,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2025-02-08 07:48:24,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1657. [2025-02-08 07:48:24,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1157 states have (on average 1.7121866897147795) internal successors, (1981), 1650 states have internal predecessors, (1981), 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 07:48:24,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 1994 transitions. [2025-02-08 07:48:24,957 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 1994 transitions. Word has length 37 [2025-02-08 07:48:24,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:24,957 INFO L471 AbstractCegarLoop]: Abstraction has 1657 states and 1994 transitions. [2025-02-08 07:48:24,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 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 07:48:24,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 1994 transitions. [2025-02-08 07:48:24,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-08 07:48:24,959 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:24,960 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:24,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-08 07:48:25,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:25,161 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr534REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:25,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:25,161 INFO L85 PathProgramCache]: Analyzing trace with hash -704234984, now seen corresponding path program 1 times [2025-02-08 07:48:25,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:25,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632543938] [2025-02-08 07:48:25,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:25,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:25,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:25,163 INFO L229 MonitoredProcess]: Starting monitored process 15 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 07:48:25,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-08 07:48:25,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 07:48:25,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 07:48:25,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:25,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:25,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:48:25,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:25,420 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 07:48:25,420 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:25,420 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:25,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632543938] [2025-02-08 07:48:25,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632543938] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:25,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:25,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:48:25,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233494771] [2025-02-08 07:48:25,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:25,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:48:25,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:25,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:48:25,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:48:25,421 INFO L87 Difference]: Start difference. First operand 1657 states and 1994 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 07:48:25,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:25,482 INFO L93 Difference]: Finished difference Result 1346 states and 1558 transitions. [2025-02-08 07:48:25,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 07:48:25,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2025-02-08 07:48:25,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:25,485 INFO L225 Difference]: With dead ends: 1346 [2025-02-08 07:48:25,485 INFO L226 Difference]: Without dead ends: 1346 [2025-02-08 07:48:25,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 07:48:25,487 INFO L435 NwaCegarLoop]: 1104 mSDtfsCounter, 56 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:25,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3239 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 07:48:25,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2025-02-08 07:48:25,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1344. [2025-02-08 07:48:25,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 867 states have (on average 1.7797001153402539) internal successors, (1543), 1337 states have internal predecessors, (1543), 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 07:48:25,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1556 transitions. [2025-02-08 07:48:25,499 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1556 transitions. Word has length 53 [2025-02-08 07:48:25,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:25,499 INFO L471 AbstractCegarLoop]: Abstraction has 1344 states and 1556 transitions. [2025-02-08 07:48:25,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 07:48:25,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1556 transitions. [2025-02-08 07:48:25,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-08 07:48:25,501 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:25,501 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:25,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-08 07:48:25,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:25,702 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr534REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:25,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:25,702 INFO L85 PathProgramCache]: Analyzing trace with hash 2085731296, now seen corresponding path program 1 times [2025-02-08 07:48:25,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:25,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [833208034] [2025-02-08 07:48:25,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:25,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:25,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:25,704 INFO L229 MonitoredProcess]: Starting monitored process 16 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 07:48:25,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-08 07:48:25,847 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-08 07:48:25,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-08 07:48:25,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:25,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:25,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 07:48:25,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:25,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 07:48:26,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 07:48:26,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-02-08 07:48:26,366 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 07:48:26,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-08 07:48:26,375 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 07:48:26,375 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:26,375 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:26,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833208034] [2025-02-08 07:48:26,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833208034] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:26,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:26,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:48:26,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646815713] [2025-02-08 07:48:26,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:26,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 07:48:26,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:26,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 07:48:26,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:48:26,378 INFO L87 Difference]: Start difference. First operand 1344 states and 1556 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 07:48:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:28,559 INFO L93 Difference]: Finished difference Result 1705 states and 2034 transitions. [2025-02-08 07:48:28,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 07:48:28,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 61 [2025-02-08 07:48:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:28,562 INFO L225 Difference]: With dead ends: 1705 [2025-02-08 07:48:28,562 INFO L226 Difference]: Without dead ends: 1705 [2025-02-08 07:48:28,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-08 07:48:28,563 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 1890 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:28,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 1073 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-08 07:48:28,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2025-02-08 07:48:28,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1267. [2025-02-08 07:48:28,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 828 states have (on average 1.7258454106280192) internal successors, (1429), 1260 states have internal predecessors, (1429), 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 07:48:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1442 transitions. [2025-02-08 07:48:28,574 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1442 transitions. Word has length 61 [2025-02-08 07:48:28,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:28,575 INFO L471 AbstractCegarLoop]: Abstraction has 1267 states and 1442 transitions. [2025-02-08 07:48:28,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 07:48:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1442 transitions. [2025-02-08 07:48:28,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 07:48:28,575 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:28,575 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:28,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-08 07:48:28,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:28,776 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr527REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:28,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:28,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1742317971, now seen corresponding path program 1 times [2025-02-08 07:48:28,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:28,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056077906] [2025-02-08 07:48:28,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:28,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:28,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:28,778 INFO L229 MonitoredProcess]: Starting monitored process 17 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 07:48:28,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-08 07:48:28,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 07:48:29,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 07:48:29,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:29,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:29,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 07:48:29,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:29,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2025-02-08 07:48:29,051 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 19 treesize of output 1 [2025-02-08 07:48:29,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-08 07:48:29,085 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 07:48:29,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:29,085 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:29,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056077906] [2025-02-08 07:48:29,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056077906] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:29,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:29,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:48:29,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240395817] [2025-02-08 07:48:29,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:29,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 07:48:29,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:29,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 07:48:29,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:48:29,087 INFO L87 Difference]: Start difference. First operand 1267 states and 1442 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 07:48:30,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:30,861 INFO L93 Difference]: Finished difference Result 1266 states and 1441 transitions. [2025-02-08 07:48:30,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 07:48:30,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2025-02-08 07:48:30,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:30,864 INFO L225 Difference]: With dead ends: 1266 [2025-02-08 07:48:30,864 INFO L226 Difference]: Without dead ends: 1266 [2025-02-08 07:48:30,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 07:48:30,864 INFO L435 NwaCegarLoop]: 1076 mSDtfsCounter, 2 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:30,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2828 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-08 07:48:30,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2025-02-08 07:48:30,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1266. [2025-02-08 07:48:30,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 828 states have (on average 1.7246376811594204) internal successors, (1428), 1259 states have internal predecessors, (1428), 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 07:48:30,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1441 transitions. [2025-02-08 07:48:30,877 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1441 transitions. Word has length 66 [2025-02-08 07:48:30,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:30,877 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1441 transitions. [2025-02-08 07:48:30,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 07:48:30,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1441 transitions. [2025-02-08 07:48:30,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 07:48:30,878 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:30,878 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:30,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-08 07:48:31,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:31,083 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr528REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:31,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:31,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1742317972, now seen corresponding path program 1 times [2025-02-08 07:48:31,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:31,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162765547] [2025-02-08 07:48:31,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:31,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:31,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:31,086 INFO L229 MonitoredProcess]: Starting monitored process 18 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 07:48:31,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-08 07:48:31,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 07:48:31,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 07:48:31,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:31,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:31,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 07:48:31,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:31,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 07:48:31,344 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 19 treesize of output 1 [2025-02-08 07:48:31,348 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 13 treesize of output 9 [2025-02-08 07:48:31,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2025-02-08 07:48:31,395 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 07:48:31,395 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:31,395 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:31,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162765547] [2025-02-08 07:48:31,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162765547] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:31,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:31,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:48:31,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525592520] [2025-02-08 07:48:31,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:31,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 07:48:31,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:31,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 07:48:31,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:48:31,396 INFO L87 Difference]: Start difference. First operand 1266 states and 1441 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 07:48:33,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:33,579 INFO L93 Difference]: Finished difference Result 1265 states and 1440 transitions. [2025-02-08 07:48:33,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 07:48:33,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2025-02-08 07:48:33,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:33,581 INFO L225 Difference]: With dead ends: 1265 [2025-02-08 07:48:33,581 INFO L226 Difference]: Without dead ends: 1265 [2025-02-08 07:48:33,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 07:48:33,582 INFO L435 NwaCegarLoop]: 1076 mSDtfsCounter, 1 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:33,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2832 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-08 07:48:33,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2025-02-08 07:48:33,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1265. [2025-02-08 07:48:33,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 827 states have (on average 1.7255139056831923) internal successors, (1427), 1258 states have internal predecessors, (1427), 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 07:48:33,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1440 transitions. [2025-02-08 07:48:33,592 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1440 transitions. Word has length 66 [2025-02-08 07:48:33,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:33,593 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 1440 transitions. [2025-02-08 07:48:33,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 07:48:33,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1440 transitions. [2025-02-08 07:48:33,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-08 07:48:33,593 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:33,593 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:33,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-08 07:48:33,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:33,794 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:33,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:33,795 INFO L85 PathProgramCache]: Analyzing trace with hash -594739600, now seen corresponding path program 1 times [2025-02-08 07:48:33,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:33,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568260226] [2025-02-08 07:48:33,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:33,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:33,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:33,797 INFO L229 MonitoredProcess]: Starting monitored process 19 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 07:48:33,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-08 07:48:33,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-08 07:48:34,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-08 07:48:34,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:34,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:34,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 07:48:34,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:34,036 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 19 treesize of output 1 [2025-02-08 07:48:34,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-08 07:48:34,115 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 07:48:34,116 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:34,116 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:34,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568260226] [2025-02-08 07:48:34,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568260226] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:34,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:34,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 07:48:34,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544083380] [2025-02-08 07:48:34,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:34,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 07:48:34,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:34,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 07:48:34,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 07:48:34,120 INFO L87 Difference]: Start difference. First operand 1265 states and 1440 transitions. Second operand has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 07:48:36,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:36,712 INFO L93 Difference]: Finished difference Result 1277 states and 1455 transitions. [2025-02-08 07:48:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 07:48:36,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2025-02-08 07:48:36,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:36,716 INFO L225 Difference]: With dead ends: 1277 [2025-02-08 07:48:36,716 INFO L226 Difference]: Without dead ends: 1277 [2025-02-08 07:48:36,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-08 07:48:36,716 INFO L435 NwaCegarLoop]: 1063 mSDtfsCounter, 11 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4499 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:36,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4499 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-02-08 07:48:36,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2025-02-08 07:48:36,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1271. [2025-02-08 07:48:36,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 832 states have (on average 1.7235576923076923) internal successors, (1434), 1263 states have internal predecessors, (1434), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-02-08 07:48:36,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1450 transitions. [2025-02-08 07:48:36,729 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1450 transitions. Word has length 74 [2025-02-08 07:48:36,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:36,729 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 1450 transitions. [2025-02-08 07:48:36,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 07:48:36,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1450 transitions. [2025-02-08 07:48:36,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-08 07:48:36,730 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:36,730 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:36,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-02-08 07:48:36,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:36,931 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr524REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:36,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:36,931 INFO L85 PathProgramCache]: Analyzing trace with hash -594739599, now seen corresponding path program 1 times [2025-02-08 07:48:36,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:36,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067879379] [2025-02-08 07:48:36,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:36,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:36,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:36,934 INFO L229 MonitoredProcess]: Starting monitored process 20 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 07:48:36,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-08 07:48:37,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-08 07:48:37,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-08 07:48:37,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:37,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:37,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:48:37,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:37,184 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 07:48:37,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:48:37,184 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:37,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067879379] [2025-02-08 07:48:37,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067879379] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:48:37,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:48:37,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:48:37,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101290432] [2025-02-08 07:48:37,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:48:37,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:48:37,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:37,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:48:37,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:48:37,187 INFO L87 Difference]: Start difference. First operand 1271 states and 1450 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 07:48:37,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:37,231 INFO L93 Difference]: Finished difference Result 1268 states and 1444 transitions. [2025-02-08 07:48:37,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:48:37,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2025-02-08 07:48:37,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:37,236 INFO L225 Difference]: With dead ends: 1268 [2025-02-08 07:48:37,241 INFO L226 Difference]: Without dead ends: 1268 [2025-02-08 07:48:37,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 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 07:48:37,241 INFO L435 NwaCegarLoop]: 1076 mSDtfsCounter, 0 mSDsluCounter, 2147 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:37,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3223 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 07:48:37,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2025-02-08 07:48:37,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1268. [2025-02-08 07:48:37,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 829 states have (on average 1.7249698431845597) internal successors, (1430), 1261 states have internal predecessors, (1430), 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 07:48:37,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1444 transitions. [2025-02-08 07:48:37,267 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1444 transitions. Word has length 74 [2025-02-08 07:48:37,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:37,267 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1444 transitions. [2025-02-08 07:48:37,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 07:48:37,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1444 transitions. [2025-02-08 07:48:37,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-08 07:48:37,268 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:37,268 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:37,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-02-08 07:48:37,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:37,469 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:37,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:37,470 INFO L85 PathProgramCache]: Analyzing trace with hash 733638745, now seen corresponding path program 1 times [2025-02-08 07:48:37,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:37,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2089163099] [2025-02-08 07:48:37,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:48:37,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:37,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:37,472 INFO L229 MonitoredProcess]: Starting monitored process 21 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 07:48:37,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-08 07:48:37,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-08 07:48:37,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-08 07:48:37,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:48:37,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:48:37,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 07:48:37,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:48:37,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:48:37,728 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:48:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:48:37,781 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:48:37,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089163099] [2025-02-08 07:48:37,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089163099] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:48:37,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 07:48:37,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 07:48:37,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561908510] [2025-02-08 07:48:37,781 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 07:48:37,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 07:48:37,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:48:37,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 07:48:37,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 07:48:37,782 INFO L87 Difference]: Start difference. First operand 1268 states and 1444 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 07:48:37,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:48:37,940 INFO L93 Difference]: Finished difference Result 1280 states and 1461 transitions. [2025-02-08 07:48:37,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 07:48:37,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2025-02-08 07:48:37,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:48:37,944 INFO L225 Difference]: With dead ends: 1280 [2025-02-08 07:48:37,945 INFO L226 Difference]: Without dead ends: 1280 [2025-02-08 07:48:37,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-08 07:48:37,946 INFO L435 NwaCegarLoop]: 1076 mSDtfsCounter, 8 mSDsluCounter, 4290 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5366 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:48:37,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5366 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 07:48:37,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2025-02-08 07:48:37,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1278. [2025-02-08 07:48:37,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 838 states have (on average 1.724343675417661) internal successors, (1445), 1270 states have internal predecessors, (1445), 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 07:48:37,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1459 transitions. [2025-02-08 07:48:37,968 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1459 transitions. Word has length 75 [2025-02-08 07:48:37,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:48:37,968 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1459 transitions. [2025-02-08 07:48:37,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 07:48:37,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1459 transitions. [2025-02-08 07:48:37,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-02-08 07:48:37,969 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:48:37,969 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:48:37,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-02-08 07:48:38,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:38,170 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2025-02-08 07:48:38,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:48:38,170 INFO L85 PathProgramCache]: Analyzing trace with hash -179392336, now seen corresponding path program 2 times [2025-02-08 07:48:38,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:48:38,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [607275653] [2025-02-08 07:48:38,171 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 07:48:38,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:48:38,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:48:38,172 INFO L229 MonitoredProcess]: Starting monitored process 22 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 07:48:38,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-02-08 07:48:38,352 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes.