./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.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_SFH_test8-2.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 dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:08:00,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:08:00,953 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:08:00,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:08:00,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:08:00,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:08:00,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:08:00,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:08:00,994 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:08:00,994 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:08:00,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:08:00,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:08:00,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:08:00,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:08:00,997 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:08:00,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:08:00,998 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:08:00,999 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:08:00,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:08:00,999 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:08:00,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:08:00,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:08:00,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:08:00,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:08:00,999 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:08:00,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:08:00,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:08:00,999 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:08:00,999 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:08:00,999 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:08:00,999 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 -> dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd [2025-02-08 08:08:01,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:08:01,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:08:01,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:08:01,295 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:08:01,296 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:08:01,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2025-02-08 08:08:02,545 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b48be6a34/cd78c15ad096457dab6f6f141eefe794/FLAGb2d2dfb3a [2025-02-08 08:08:02,899 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:08:02,900 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2025-02-08 08:08:02,923 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b48be6a34/cd78c15ad096457dab6f6f141eefe794/FLAGb2d2dfb3a [2025-02-08 08:08:02,936 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b48be6a34/cd78c15ad096457dab6f6f141eefe794 [2025-02-08 08:08:02,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:08:02,941 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:08:02,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:08:02,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:08:02,947 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:08:02,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:08:02" (1/1) ... [2025-02-08 08:08:02,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10062770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:02, skipping insertion in model container [2025-02-08 08:08:02,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:08:02" (1/1) ... [2025-02-08 08:08:02,991 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:08:03,312 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 08:08:03,347 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:03,353 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:03,358 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:03,365 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 08:08:03,392 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:03,392 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:03,396 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 08:08:03,396 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 08:08:03,398 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 08:08:03,400 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 08:08:03,400 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 08:08:03,401 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 08:08:03,405 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 08:08:03,406 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:03,407 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:03,410 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:03,411 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 08:08:03,414 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 08:08:03,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:08:03,440 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 08:08:03,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7acb8457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:03, skipping insertion in model container [2025-02-08 08:08:03,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:08:03,441 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 08:08:03,446 INFO L158 Benchmark]: Toolchain (without parser) took 501.63ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 90.2MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 08:08:03,446 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:08:03,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.22ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 90.7MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 08:08:03,447 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 201.3MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.22ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 90.7MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 778]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.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 dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:08:05,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:08:05,733 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 08:08:05,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:08:05,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:08:05,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:08:05,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:08:05,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:08:05,773 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:08:05,773 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:08:05,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:08:05,775 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:08:05,775 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:08:05,775 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:08:05,775 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:08:05,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:08:05,775 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:08:05,776 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:08:05,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:08:05,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:08:05,776 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:08:05,776 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:08:05,776 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:08:05,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:08:05,777 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:08:05,777 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 08:08:05,777 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 08:08:05,777 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:08:05,777 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:08:05,777 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:08:05,777 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:08:05,777 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:08:05,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:08:05,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:08:05,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:08:05,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:08:05,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:08:05,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:08:05,779 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 08:08:05,779 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 08:08:05,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:08:05,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:08:05,780 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:08:05,780 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:08:05,780 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 -> dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd [2025-02-08 08:08:06,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:08:06,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:08:06,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:08:06,093 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:08:06,093 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:08:06,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2025-02-08 08:08:07,377 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7675ada58/7bda1c2a2be34f78abfe0f8f0117572d/FLAGbd8b9105b [2025-02-08 08:08:07,658 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:08:07,658 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2025-02-08 08:08:07,674 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7675ada58/7bda1c2a2be34f78abfe0f8f0117572d/FLAGbd8b9105b [2025-02-08 08:08:07,696 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7675ada58/7bda1c2a2be34f78abfe0f8f0117572d [2025-02-08 08:08:07,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:08:07,702 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:08:07,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:08:07,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:08:07,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:08:07,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:08:07" (1/1) ... [2025-02-08 08:08:07,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da1a783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:07, skipping insertion in model container [2025-02-08 08:08:07,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:08:07" (1/1) ... [2025-02-08 08:08:07,762 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:08:08,162 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:08,203 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:08,207 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:08,212 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:08,221 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 08:08:08,260 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 08:08:08,260 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 08:08:08,264 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 08:08:08,264 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 08:08:08,267 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 08:08:08,269 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 08:08:08,271 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 08:08:08,271 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 08:08:08,277 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 08:08:08,279 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:08,280 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 08:08:08,282 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:08,284 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 08:08:08,287 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 08:08:08,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:08:08,319 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 08:08:08,332 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:08:08,379 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 08:08:08,408 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:08,410 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:08:08,415 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 08:08:08,422 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 08:08:08,447 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 08:08:08,448 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 08:08:08,449 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 08:08:08,449 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 08:08:08,450 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 08:08:08,451 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 08:08:08,455 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 08:08:08,455 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 08:08:08,458 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 08:08:08,462 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 08:08:08,463 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 08:08:08,464 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 08:08:08,466 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 08:08:08,468 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 08:08:08,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:08:08,480 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:08:08,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:08:08,627 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:08:08,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08 WrapperNode [2025-02-08 08:08:08,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:08:08,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:08:08,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:08:08,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:08:08,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (1/1) ... [2025-02-08 08:08:08,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (1/1) ... [2025-02-08 08:08:08,767 INFO L138 Inliner]: procedures = 180, calls = 342, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1155 [2025-02-08 08:08:08,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:08:08,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:08:08,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:08:08,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:08:08,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (1/1) ... [2025-02-08 08:08:08,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (1/1) ... [2025-02-08 08:08:08,789 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (1/1) ... [2025-02-08 08:08:08,863 INFO L175 MemorySlicer]: Split 304 memory accesses to 3 slices as follows [268, 2, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0]. The 62 writes are split as follows [58, 0, 4]. [2025-02-08 08:08:08,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (1/1) ... [2025-02-08 08:08:08,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (1/1) ... [2025-02-08 08:08:08,917 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (1/1) ... [2025-02-08 08:08:08,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (1/1) ... [2025-02-08 08:08:08,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (1/1) ... [2025-02-08 08:08:08,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (1/1) ... [2025-02-08 08:08:08,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:08:08,950 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:08:08,951 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:08:08,951 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:08:08,952 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (1/1) ... [2025-02-08 08:08:08,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:08:08,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:08,987 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 08:08:08,990 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 08:08:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 08:08:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 08:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 08:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 08:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 08:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 08:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 08:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 08:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 08:08:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 08:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 08:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 08:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 08:08:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 08:08:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 08:08:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 08:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2025-02-08 08:08:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2025-02-08 08:08:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 08:08:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:08:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:08:09,263 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:08:09,264 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:08:13,392 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L763: 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 08:08:13,522 INFO L? ?]: Removed 1320 outVars from TransFormulas that were not future-live. [2025-02-08 08:08:13,523 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:08:13,559 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:08:13,560 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:08:13,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:08:13 BoogieIcfgContainer [2025-02-08 08:08:13,560 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:08:13,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:08:13,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:08:13,569 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:08:13,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:08:07" (1/3) ... [2025-02-08 08:08:13,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38246649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:08:13, skipping insertion in model container [2025-02-08 08:08:13,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:08:08" (2/3) ... [2025-02-08 08:08:13,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38246649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:08:13, skipping insertion in model container [2025-02-08 08:08:13,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:08:13" (3/3) ... [2025-02-08 08:08:13,575 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test8-2.i [2025-02-08 08:08:13,587 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:08:13,589 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test8-2.i that has 7 procedures, 1322 locations, 1 initial locations, 42 loop locations, and 634 error locations. [2025-02-08 08:08:13,655 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:08:13,667 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;@8b6758b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:08:13,667 INFO L334 AbstractCegarLoop]: Starting to check reachability of 634 error locations. [2025-02-08 08:08:13,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 1312 states, 653 states have (on average 2.1990811638591117) internal successors, (1436), 1301 states have internal predecessors, (1436), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2025-02-08 08:08:13,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-02-08 08:08:13,681 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:13,681 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-02-08 08:08:13,681 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr631REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:13,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:13,687 INFO L85 PathProgramCache]: Analyzing trace with hash 49279, now seen corresponding path program 1 times [2025-02-08 08:08:13,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:13,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24265090] [2025-02-08 08:08:13,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:13,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:13,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:13,702 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 08:08:13,704 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 08:08:13,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 08:08:13,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 08:08:13,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:13,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:13,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:08:13,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:13,899 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 08:08:13,917 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 08:08:13,917 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:13,918 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:13,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24265090] [2025-02-08 08:08:13,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24265090] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:13,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:13,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:08:13,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484071410] [2025-02-08 08:08:13,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:13,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:08:13,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:13,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:08:13,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:08:13,954 INFO L87 Difference]: Start difference. First operand has 1312 states, 653 states have (on average 2.1990811638591117) internal successors, (1436), 1301 states have internal predecessors, (1436), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) 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 08:08:15,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:15,763 INFO L93 Difference]: Finished difference Result 1496 states and 1602 transitions. [2025-02-08 08:08:15,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:08:15,765 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 08:08:15,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:15,781 INFO L225 Difference]: With dead ends: 1496 [2025-02-08 08:08:15,781 INFO L226 Difference]: Without dead ends: 1491 [2025-02-08 08:08:15,783 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 08:08:15,785 INFO L435 NwaCegarLoop]: 834 mSDtfsCounter, 1167 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:15,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1073 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-08 08:08:15,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2025-02-08 08:08:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1298. [2025-02-08 08:08:15,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 657 states have (on average 2.0639269406392695) internal successors, (1356), 1287 states have internal predecessors, (1356), 23 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:08:15,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 1385 transitions. [2025-02-08 08:08:15,877 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 1385 transitions. Word has length 2 [2025-02-08 08:08:15,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:15,877 INFO L471 AbstractCegarLoop]: Abstraction has 1298 states and 1385 transitions. [2025-02-08 08:08:15,877 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 08:08:15,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 1385 transitions. [2025-02-08 08:08:15,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-02-08 08:08:15,877 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:15,878 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-02-08 08:08:15,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 08:08:16,078 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 08:08:16,079 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr632REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:16,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:16,079 INFO L85 PathProgramCache]: Analyzing trace with hash 49280, now seen corresponding path program 1 times [2025-02-08 08:08:16,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:16,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [901337799] [2025-02-08 08:08:16,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:16,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:16,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:16,082 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 08:08:16,083 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 08:08:16,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 08:08:16,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 08:08:16,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:16,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:16,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:08:16,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:16,220 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 08:08:16,232 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 08:08:16,232 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:16,232 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:16,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901337799] [2025-02-08 08:08:16,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901337799] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:16,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:16,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:08:16,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794243590] [2025-02-08 08:08:16,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:16,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:08:16,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:16,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:08:16,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:08:16,235 INFO L87 Difference]: Start difference. First operand 1298 states and 1385 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 08:08:18,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:18,865 INFO L93 Difference]: Finished difference Result 1909 states and 2039 transitions. [2025-02-08 08:08:18,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:08:18,865 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 08:08:18,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:18,872 INFO L225 Difference]: With dead ends: 1909 [2025-02-08 08:08:18,872 INFO L226 Difference]: Without dead ends: 1909 [2025-02-08 08:08:18,872 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 08:08:18,873 INFO L435 NwaCegarLoop]: 1080 mSDtfsCounter, 650 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:18,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 1831 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-02-08 08:08:18,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2025-02-08 08:08:18,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1518. [2025-02-08 08:08:18,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 877 states have (on average 2.0444697833523375) internal successors, (1793), 1506 states have internal predecessors, (1793), 24 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 08:08:18,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1824 transitions. [2025-02-08 08:08:18,913 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1824 transitions. Word has length 2 [2025-02-08 08:08:18,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:18,913 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1824 transitions. [2025-02-08 08:08:18,913 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 08:08:18,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1824 transitions. [2025-02-08 08:08:18,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 08:08:18,914 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:18,914 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:08:18,922 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 08:08:19,114 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 08:08:19,115 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr628REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:19,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:19,115 INFO L85 PathProgramCache]: Analyzing trace with hash -820801856, now seen corresponding path program 1 times [2025-02-08 08:08:19,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:19,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [530154131] [2025-02-08 08:08:19,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:19,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:19,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:19,119 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 08:08:19,121 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 08:08:19,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:08:19,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:08:19,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:19,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:19,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 08:08:19,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:19,271 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 08:08:19,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 08:08:19,361 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 08:08:19,376 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 08:08:19,377 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 08:08:19,393 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 08:08:19,394 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:19,394 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:19,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530154131] [2025-02-08 08:08:19,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530154131] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:19,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:19,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:08:19,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606450060] [2025-02-08 08:08:19,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:19,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:08:19,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:19,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:08:19,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:08:19,395 INFO L87 Difference]: Start difference. First operand 1518 states and 1824 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 08:08:21,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:21,952 INFO L93 Difference]: Finished difference Result 1705 states and 2018 transitions. [2025-02-08 08:08:21,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:08:21,952 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 08:08:21,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:21,958 INFO L225 Difference]: With dead ends: 1705 [2025-02-08 08:08:21,958 INFO L226 Difference]: Without dead ends: 1705 [2025-02-08 08:08:21,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:08:21,959 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 2634 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2640 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:21,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2640 Valid, 641 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-02-08 08:08:21,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2025-02-08 08:08:21,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1286. [2025-02-08 08:08:21,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 657 states have (on average 2.0441400304414) internal successors, (1343), 1275 states have internal predecessors, (1343), 23 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:08:21,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1372 transitions. [2025-02-08 08:08:21,987 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1372 transitions. Word has length 7 [2025-02-08 08:08:21,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:21,988 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1372 transitions. [2025-02-08 08:08:21,989 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 08:08:21,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1372 transitions. [2025-02-08 08:08:21,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 08:08:21,989 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:21,990 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:08:21,998 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 08:08:22,190 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 08:08:22,190 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr625REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:22,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:22,191 INFO L85 PathProgramCache]: Analyzing trace with hash 324947669, now seen corresponding path program 1 times [2025-02-08 08:08:22,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:22,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774578505] [2025-02-08 08:08:22,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:22,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:22,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:22,195 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 08:08:22,196 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 08:08:22,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 08:08:22,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 08:08:22,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:22,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:22,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:08:22,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:22,337 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 08:08:22,350 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 08:08:22,351 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:22,351 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:22,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774578505] [2025-02-08 08:08:22,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774578505] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:22,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:22,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:08:22,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718780270] [2025-02-08 08:08:22,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:22,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:08:22,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:22,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:08:22,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:08:22,353 INFO L87 Difference]: Start difference. First operand 1286 states and 1372 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 08:08:23,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:23,872 INFO L93 Difference]: Finished difference Result 1628 states and 1743 transitions. [2025-02-08 08:08:23,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:08:23,872 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 08:08:23,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:23,878 INFO L225 Difference]: With dead ends: 1628 [2025-02-08 08:08:23,878 INFO L226 Difference]: Without dead ends: 1628 [2025-02-08 08:08:23,878 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 08:08:23,880 INFO L435 NwaCegarLoop]: 1224 mSDtfsCounter, 950 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:23,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 1629 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-08 08:08:23,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2025-02-08 08:08:23,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1238. [2025-02-08 08:08:23,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 657 states have (on average 1.969558599695586) internal successors, (1294), 1227 states have internal predecessors, (1294), 23 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 08:08:23,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1323 transitions. [2025-02-08 08:08:23,908 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1323 transitions. Word has length 8 [2025-02-08 08:08:23,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:23,909 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1323 transitions. [2025-02-08 08:08:23,909 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 08:08:23,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1323 transitions. [2025-02-08 08:08:23,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-08 08:08:23,910 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:23,910 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:08:23,918 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 08:08:24,114 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 08:08:24,114 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr626REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:24,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:24,114 INFO L85 PathProgramCache]: Analyzing trace with hash 324947670, now seen corresponding path program 1 times [2025-02-08 08:08:24,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:24,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1819911463] [2025-02-08 08:08:24,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:24,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:24,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:24,117 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 08:08:24,118 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 08:08:24,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 08:08:24,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 08:08:24,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:24,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:24,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:08:24,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:24,247 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 08:08:24,276 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 08:08:24,276 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:24,276 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:24,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819911463] [2025-02-08 08:08:24,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819911463] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:24,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:24,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:08:24,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062676993] [2025-02-08 08:08:24,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:24,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:08:24,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:24,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:08:24,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:08:24,277 INFO L87 Difference]: Start difference. First operand 1238 states and 1323 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 08:08:26,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:26,236 INFO L93 Difference]: Finished difference Result 1731 states and 1852 transitions. [2025-02-08 08:08:26,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:08:26,237 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 08:08:26,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:26,242 INFO L225 Difference]: With dead ends: 1731 [2025-02-08 08:08:26,242 INFO L226 Difference]: Without dead ends: 1731 [2025-02-08 08:08:26,242 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 08:08:26,243 INFO L435 NwaCegarLoop]: 1425 mSDtfsCounter, 712 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:26,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 2016 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-08 08:08:26,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2025-02-08 08:08:26,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1503. [2025-02-08 08:08:26,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 930 states have (on average 1.9494623655913978) internal successors, (1813), 1490 states have internal predecessors, (1813), 25 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-08 08:08:26,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1846 transitions. [2025-02-08 08:08:26,271 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1846 transitions. Word has length 8 [2025-02-08 08:08:26,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:26,271 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 1846 transitions. [2025-02-08 08:08:26,272 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 08:08:26,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1846 transitions. [2025-02-08 08:08:26,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 08:08:26,272 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:26,272 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:08:26,281 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 08:08:26,473 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 08:08:26,473 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr104REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:26,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:26,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2018419792, now seen corresponding path program 1 times [2025-02-08 08:08:26,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:26,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [459582542] [2025-02-08 08:08:26,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:26,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:26,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:26,476 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 08:08:26,477 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 08:08:26,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 08:08:26,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 08:08:26,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:26,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:26,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:08:26,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:26,676 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 08:08:26,677 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:26,677 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:26,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459582542] [2025-02-08 08:08:26,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459582542] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:26,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:26,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:08:26,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861556869] [2025-02-08 08:08:26,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:26,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:08:26,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:26,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:08:26,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:08:26,682 INFO L87 Difference]: Start difference. First operand 1503 states and 1846 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:08:27,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:27,054 INFO L93 Difference]: Finished difference Result 2283 states and 2882 transitions. [2025-02-08 08:08:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:08:27,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-02-08 08:08:27,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:27,063 INFO L225 Difference]: With dead ends: 2283 [2025-02-08 08:08:27,063 INFO L226 Difference]: Without dead ends: 2283 [2025-02-08 08:08:27,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:08:27,064 INFO L435 NwaCegarLoop]: 1441 mSDtfsCounter, 638 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:27,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 2622 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 08:08:27,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2025-02-08 08:08:27,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 1917. [2025-02-08 08:08:27,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1342 states have (on average 1.9396423248882266) internal successors, (2603), 1902 states have internal predecessors, (2603), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:08:27,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 2640 transitions. [2025-02-08 08:08:27,126 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 2640 transitions. Word has length 12 [2025-02-08 08:08:27,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:27,126 INFO L471 AbstractCegarLoop]: Abstraction has 1917 states and 2640 transitions. [2025-02-08 08:08:27,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:08:27,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 2640 transitions. [2025-02-08 08:08:27,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 08:08:27,127 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:27,127 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:08:27,136 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 08:08:27,327 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 08:08:27,328 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr297REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:27,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:27,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1209648480, now seen corresponding path program 1 times [2025-02-08 08:08:27,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:27,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1749643455] [2025-02-08 08:08:27,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:27,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:27,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:27,330 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 08:08:27,331 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 08:08:27,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 08:08:27,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 08:08:27,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:27,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:27,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:08:27,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:27,466 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 08:08:27,519 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 08:08:27,519 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:27,519 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:27,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749643455] [2025-02-08 08:08:27,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749643455] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:27,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:27,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:08:27,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170303484] [2025-02-08 08:08:27,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:27,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:08:27,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:27,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:08:27,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:08:27,521 INFO L87 Difference]: Start difference. First operand 1917 states and 2640 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 08:08:29,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:29,271 INFO L93 Difference]: Finished difference Result 2107 states and 2770 transitions. [2025-02-08 08:08:29,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:08:29,272 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 08:08:29,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:29,279 INFO L225 Difference]: With dead ends: 2107 [2025-02-08 08:08:29,280 INFO L226 Difference]: Without dead ends: 2107 [2025-02-08 08:08:29,280 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 08:08:29,281 INFO L435 NwaCegarLoop]: 772 mSDtfsCounter, 1161 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:29,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 1650 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-08 08:08:29,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2025-02-08 08:08:29,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 1894. [2025-02-08 08:08:29,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1342 states have (on average 1.8710879284649777) internal successors, (2511), 1879 states have internal predecessors, (2511), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:08:29,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 2548 transitions. [2025-02-08 08:08:29,317 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 2548 transitions. Word has length 14 [2025-02-08 08:08:29,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:29,318 INFO L471 AbstractCegarLoop]: Abstraction has 1894 states and 2548 transitions. [2025-02-08 08:08:29,318 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 08:08:29,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 2548 transitions. [2025-02-08 08:08:29,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 08:08:29,319 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:29,319 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:08:29,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 08:08:29,520 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 08:08:29,520 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr298REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:29,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:29,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1209648479, now seen corresponding path program 1 times [2025-02-08 08:08:29,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:29,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995275289] [2025-02-08 08:08:29,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:29,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:29,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:29,524 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 08:08:29,525 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 08:08:29,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 08:08:29,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 08:08:29,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:29,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:29,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:08:29,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:29,647 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 08:08:29,739 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 08:08:29,739 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:29,739 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:29,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995275289] [2025-02-08 08:08:29,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995275289] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:29,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:29,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:08:29,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275848608] [2025-02-08 08:08:29,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:29,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:08:29,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:29,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:08:29,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:08:29,740 INFO L87 Difference]: Start difference. First operand 1894 states and 2548 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 08:08:32,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:32,166 INFO L93 Difference]: Finished difference Result 2598 states and 3401 transitions. [2025-02-08 08:08:32,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:08:32,167 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 08:08:32,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:32,172 INFO L225 Difference]: With dead ends: 2598 [2025-02-08 08:08:32,172 INFO L226 Difference]: Without dead ends: 2598 [2025-02-08 08:08:32,172 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 08:08:32,173 INFO L435 NwaCegarLoop]: 1018 mSDtfsCounter, 626 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 2376 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:32,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 2376 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-08 08:08:32,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2025-02-08 08:08:32,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2222. [2025-02-08 08:08:32,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 1668 states have (on average 1.8717026378896882) internal successors, (3122), 2205 states have internal predecessors, (3122), 29 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-08 08:08:32,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 3163 transitions. [2025-02-08 08:08:32,204 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 3163 transitions. Word has length 14 [2025-02-08 08:08:32,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:32,205 INFO L471 AbstractCegarLoop]: Abstraction has 2222 states and 3163 transitions. [2025-02-08 08:08:32,205 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 08:08:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 3163 transitions. [2025-02-08 08:08:32,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-08 08:08:32,205 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:32,205 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:08:32,215 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 08:08:32,406 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 08:08:32,406 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:32,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:32,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1623826645, now seen corresponding path program 1 times [2025-02-08 08:08:32,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:32,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569579694] [2025-02-08 08:08:32,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:32,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:32,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:32,408 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 08:08:32,410 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 08:08:32,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 08:08:32,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 08:08:32,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:32,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:32,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:08:32,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:32,540 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 08:08:32,541 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 08:08:32,542 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 08:08:32,545 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 08:08:32,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 08:08:32,604 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 08:08:32,616 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 08:08:32,616 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:32,616 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:32,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569579694] [2025-02-08 08:08:32,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569579694] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:32,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:32,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:08:32,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943319238] [2025-02-08 08:08:32,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:32,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:08:32,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:32,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:08:32,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:08:32,618 INFO L87 Difference]: Start difference. First operand 2222 states and 3163 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 08:08:33,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:33,020 INFO L93 Difference]: Finished difference Result 3305 states and 4370 transitions. [2025-02-08 08:08:33,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:08:33,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 08:08:33,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:33,027 INFO L225 Difference]: With dead ends: 3305 [2025-02-08 08:08:33,027 INFO L226 Difference]: Without dead ends: 3305 [2025-02-08 08:08:33,027 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 08:08:33,028 INFO L435 NwaCegarLoop]: 1235 mSDtfsCounter, 1153 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:33,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 3695 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 08:08:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2025-02-08 08:08:33,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 1893. [2025-02-08 08:08:33,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1893 states, 1341 states have (on average 1.8709917971662937) internal successors, (2509), 1878 states have internal predecessors, (2509), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:08:33,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2546 transitions. [2025-02-08 08:08:33,062 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2546 transitions. Word has length 14 [2025-02-08 08:08:33,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:33,063 INFO L471 AbstractCegarLoop]: Abstraction has 1893 states and 2546 transitions. [2025-02-08 08:08:33,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 08:08:33,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2546 transitions. [2025-02-08 08:08:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 08:08:33,064 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:33,064 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 08:08:33,072 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 08:08:33,264 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 08:08:33,264 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr617REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:33,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:33,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1046973768, now seen corresponding path program 1 times [2025-02-08 08:08:33,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:33,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077392144] [2025-02-08 08:08:33,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:33,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:33,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:33,268 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 08:08:33,268 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 08:08:33,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:08:33,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:08:33,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:33,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:33,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:08:33,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:33,428 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 08:08:33,462 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 08:08:33,462 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:33,462 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:33,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077392144] [2025-02-08 08:08:33,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077392144] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:33,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:33,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:08:33,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346088496] [2025-02-08 08:08:33,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:33,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:08:33,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:33,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:08:33,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:08:33,463 INFO L87 Difference]: Start difference. First operand 1893 states and 2546 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 08:08:34,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:34,874 INFO L93 Difference]: Finished difference Result 1891 states and 2524 transitions. [2025-02-08 08:08:34,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:08:34,874 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 08:08:34,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:34,878 INFO L225 Difference]: With dead ends: 1891 [2025-02-08 08:08:34,878 INFO L226 Difference]: Without dead ends: 1891 [2025-02-08 08:08:34,878 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 08:08:34,879 INFO L435 NwaCegarLoop]: 791 mSDtfsCounter, 973 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:34,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 1576 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-08 08:08:34,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2025-02-08 08:08:34,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1870. [2025-02-08 08:08:34,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1341 states have (on average 1.8366890380313199) internal successors, (2463), 1855 states have internal predecessors, (2463), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:08:34,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2500 transitions. [2025-02-08 08:08:34,906 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2500 transitions. Word has length 18 [2025-02-08 08:08:34,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:34,906 INFO L471 AbstractCegarLoop]: Abstraction has 1870 states and 2500 transitions. [2025-02-08 08:08:34,906 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 08:08:34,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2500 transitions. [2025-02-08 08:08:34,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 08:08:34,907 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:34,907 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 08:08:34,917 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 08:08:35,111 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 08:08:35,111 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr618REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:35,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:35,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1046973769, now seen corresponding path program 1 times [2025-02-08 08:08:35,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:35,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745278668] [2025-02-08 08:08:35,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:35,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:35,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:35,114 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 08:08:35,117 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 08:08:35,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:08:35,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:08:35,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:35,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:35,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:08:35,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:35,281 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 08:08:35,355 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 08:08:35,356 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:35,356 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:35,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745278668] [2025-02-08 08:08:35,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745278668] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:35,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:35,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:08:35,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505797409] [2025-02-08 08:08:35,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:35,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:08:35,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:35,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:08:35,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:08:35,357 INFO L87 Difference]: Start difference. First operand 1870 states and 2500 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 08:08:37,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:37,778 INFO L93 Difference]: Finished difference Result 2206 states and 2661 transitions. [2025-02-08 08:08:37,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:08:37,780 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 08:08:37,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:37,786 INFO L225 Difference]: With dead ends: 2206 [2025-02-08 08:08:37,786 INFO L226 Difference]: Without dead ends: 2206 [2025-02-08 08:08:37,786 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 08:08:37,787 INFO L435 NwaCegarLoop]: 1453 mSDtfsCounter, 808 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:37,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2962 Invalid, 1688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-08 08:08:37,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2025-02-08 08:08:37,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 1984. [2025-02-08 08:08:37,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1984 states, 1455 states have (on average 1.7876288659793815) internal successors, (2601), 1969 states have internal predecessors, (2601), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:08:37,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2638 transitions. [2025-02-08 08:08:37,812 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2638 transitions. Word has length 18 [2025-02-08 08:08:37,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:37,812 INFO L471 AbstractCegarLoop]: Abstraction has 1984 states and 2638 transitions. [2025-02-08 08:08:37,812 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 08:08:37,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2638 transitions. [2025-02-08 08:08:37,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-08 08:08:37,813 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:37,814 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 08:08:37,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-08 08:08:38,014 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 08:08:38,014 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr618REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:38,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:38,015 INFO L85 PathProgramCache]: Analyzing trace with hash 515232734, now seen corresponding path program 1 times [2025-02-08 08:08:38,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:38,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260768226] [2025-02-08 08:08:38,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:38,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:38,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:38,017 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 08:08:38,020 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 08:08:38,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-08 08:08:38,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-08 08:08:38,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:38,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:38,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 08:08:38,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:38,223 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 08:08:38,424 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 08:08:38,424 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:08:38,766 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 08:08:38,766 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:38,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260768226] [2025-02-08 08:08:38,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260768226] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:08:38,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:08:38,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-02-08 08:08:38,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986099725] [2025-02-08 08:08:38,767 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:08:38,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:08:38,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:38,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:08:38,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:08:38,768 INFO L87 Difference]: Start difference. First operand 1984 states and 2638 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 08:08:45,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:45,034 INFO L93 Difference]: Finished difference Result 2562 states and 3151 transitions. [2025-02-08 08:08:45,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:08:45,035 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 08:08:45,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:45,042 INFO L225 Difference]: With dead ends: 2562 [2025-02-08 08:08:45,042 INFO L226 Difference]: Without dead ends: 2562 [2025-02-08 08:08:45,042 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 08:08:45,043 INFO L435 NwaCegarLoop]: 1480 mSDtfsCounter, 2408 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 2588 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 4025 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:45,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 4025 Invalid, 2617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2588 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2025-02-08 08:08:45,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2025-02-08 08:08:45,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 2148. [2025-02-08 08:08:45,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2148 states, 1619 states have (on average 1.749845583693638) internal successors, (2833), 2133 states have internal predecessors, (2833), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:08:45,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 2870 transitions. [2025-02-08 08:08:45,074 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 2870 transitions. Word has length 37 [2025-02-08 08:08:45,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:45,075 INFO L471 AbstractCegarLoop]: Abstraction has 2148 states and 2870 transitions. [2025-02-08 08:08:45,075 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 08:08:45,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 2870 transitions. [2025-02-08 08:08:45,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-08 08:08:45,078 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:45,079 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 08:08:45,091 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 08:08:45,279 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 08:08:45,279 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr536REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:45,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:45,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1676441369, now seen corresponding path program 1 times [2025-02-08 08:08:45,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:45,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [632047106] [2025-02-08 08:08:45,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:45,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:45,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:45,282 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 08:08:45,283 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 08:08:45,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 08:08:45,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 08:08:45,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:45,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:45,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:08:45,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:45,501 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 08:08:45,501 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:45,501 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:45,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632047106] [2025-02-08 08:08:45,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632047106] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:45,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:45,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:08:45,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073491062] [2025-02-08 08:08:45,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:45,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:08:45,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:45,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:08:45,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:08:45,502 INFO L87 Difference]: Start difference. First operand 2148 states and 2870 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 08:08:45,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:45,565 INFO L93 Difference]: Finished difference Result 1837 states and 2434 transitions. [2025-02-08 08:08:45,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:08:45,565 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 08:08:45,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:45,569 INFO L225 Difference]: With dead ends: 1837 [2025-02-08 08:08:45,570 INFO L226 Difference]: Without dead ends: 1837 [2025-02-08 08:08:45,570 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 08:08:45,570 INFO L435 NwaCegarLoop]: 1190 mSDtfsCounter, 56 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3497 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 08:08:45,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3497 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:08:45,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2025-02-08 08:08:45,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1835. [2025-02-08 08:08:45,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1329 states have (on average 1.8021068472535742) internal successors, (2395), 1820 states have internal predecessors, (2395), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 08:08:45,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2432 transitions. [2025-02-08 08:08:45,590 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2432 transitions. Word has length 53 [2025-02-08 08:08:45,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:45,590 INFO L471 AbstractCegarLoop]: Abstraction has 1835 states and 2432 transitions. [2025-02-08 08:08:45,590 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 08:08:45,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2432 transitions. [2025-02-08 08:08:45,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-08 08:08:45,591 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:45,591 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 08:08:45,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-08 08:08:45,792 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 08:08:45,792 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr536REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:45,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:45,793 INFO L85 PathProgramCache]: Analyzing trace with hash -399615903, now seen corresponding path program 1 times [2025-02-08 08:08:45,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:45,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1283224733] [2025-02-08 08:08:45,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:45,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:45,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:45,795 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 08:08:45,796 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 08:08:45,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-08 08:08:46,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-08 08:08:46,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:46,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:46,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 08:08:46,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:46,079 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 08:08:46,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 08:08:46,491 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 08:08:46,504 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 08:08:46,504 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 08:08:46,510 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 08:08:46,510 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:46,510 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:46,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283224733] [2025-02-08 08:08:46,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283224733] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:46,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:46,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:08:46,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051736705] [2025-02-08 08:08:46,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:46,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:08:46,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:46,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:08:46,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:08:46,511 INFO L87 Difference]: Start difference. First operand 1835 states and 2432 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 08:08:48,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:48,299 INFO L93 Difference]: Finished difference Result 1808 states and 2406 transitions. [2025-02-08 08:08:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:08:48,299 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 08:08:48,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:48,303 INFO L225 Difference]: With dead ends: 1808 [2025-02-08 08:08:48,303 INFO L226 Difference]: Without dead ends: 1808 [2025-02-08 08:08:48,303 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 08:08:48,304 INFO L435 NwaCegarLoop]: 602 mSDtfsCounter, 1686 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1691 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:48,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1691 Valid, 1052 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-08 08:08:48,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2025-02-08 08:08:48,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1358. [2025-02-08 08:08:48,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 895 states have (on average 1.7318435754189945) internal successors, (1550), 1346 states have internal predecessors, (1550), 24 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 08:08:48,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1581 transitions. [2025-02-08 08:08:48,319 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1581 transitions. Word has length 61 [2025-02-08 08:08:48,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:48,320 INFO L471 AbstractCegarLoop]: Abstraction has 1358 states and 1581 transitions. [2025-02-08 08:08:48,320 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 08:08:48,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1581 transitions. [2025-02-08 08:08:48,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 08:08:48,320 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:48,321 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 08:08:48,333 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 08:08:48,521 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 08:08:48,521 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr529REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:48,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:48,522 INFO L85 PathProgramCache]: Analyzing trace with hash 424818099, now seen corresponding path program 1 times [2025-02-08 08:08:48,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:48,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671046562] [2025-02-08 08:08:48,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:48,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:48,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:48,526 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 08:08:48,527 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 08:08:48,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 08:08:48,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 08:08:48,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:48,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:48,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:08:48,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:48,741 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 08:08:48,758 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 08:08:48,780 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 08:08:48,789 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 08:08:48,790 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:48,790 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:48,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671046562] [2025-02-08 08:08:48,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671046562] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:48,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:48,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:08:48,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156206443] [2025-02-08 08:08:48,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:48,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:08:48,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:48,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:08:48,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:08:48,791 INFO L87 Difference]: Start difference. First operand 1358 states and 1581 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 08:08:50,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:50,431 INFO L93 Difference]: Finished difference Result 1357 states and 1580 transitions. [2025-02-08 08:08:50,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:08:50,431 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 08:08:50,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:50,434 INFO L225 Difference]: With dead ends: 1357 [2025-02-08 08:08:50,434 INFO L226 Difference]: Without dead ends: 1357 [2025-02-08 08:08:50,434 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 08:08:50,435 INFO L435 NwaCegarLoop]: 1160 mSDtfsCounter, 2 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:50,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3104 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-08 08:08:50,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2025-02-08 08:08:50,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1357. [2025-02-08 08:08:50,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 895 states have (on average 1.7307262569832402) internal successors, (1549), 1345 states have internal predecessors, (1549), 24 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 08:08:50,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1580 transitions. [2025-02-08 08:08:50,449 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1580 transitions. Word has length 66 [2025-02-08 08:08:50,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:50,449 INFO L471 AbstractCegarLoop]: Abstraction has 1357 states and 1580 transitions. [2025-02-08 08:08:50,449 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 08:08:50,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1580 transitions. [2025-02-08 08:08:50,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 08:08:50,450 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:50,450 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 08:08:50,463 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 08:08:50,650 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 08:08:50,651 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr530REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:50,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:50,651 INFO L85 PathProgramCache]: Analyzing trace with hash 424818100, now seen corresponding path program 1 times [2025-02-08 08:08:50,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:50,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [30546316] [2025-02-08 08:08:50,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:50,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:50,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:50,653 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 08:08:50,654 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 08:08:50,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 08:08:50,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 08:08:50,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:50,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:50,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 08:08:50,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:50,916 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 08:08:50,932 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 08:08:50,939 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 08:08:50,981 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 08:08:50,996 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 08:08:50,997 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:50,997 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:50,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30546316] [2025-02-08 08:08:50,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30546316] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:50,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:50,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:08:50,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754980025] [2025-02-08 08:08:50,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:50,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:08:50,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:50,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:08:51,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:08:51,000 INFO L87 Difference]: Start difference. First operand 1357 states and 1580 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 08:08:53,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:53,028 INFO L93 Difference]: Finished difference Result 1356 states and 1579 transitions. [2025-02-08 08:08:53,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:08:53,029 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 08:08:53,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:53,031 INFO L225 Difference]: With dead ends: 1356 [2025-02-08 08:08:53,031 INFO L226 Difference]: Without dead ends: 1356 [2025-02-08 08:08:53,031 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 08:08:53,032 INFO L435 NwaCegarLoop]: 1160 mSDtfsCounter, 1 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:53,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3090 Invalid, 1555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-08 08:08:53,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2025-02-08 08:08:53,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 1356. [2025-02-08 08:08:53,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 894 states have (on average 1.7315436241610738) internal successors, (1548), 1344 states have internal predecessors, (1548), 24 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-08 08:08:53,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1579 transitions. [2025-02-08 08:08:53,044 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1579 transitions. Word has length 66 [2025-02-08 08:08:53,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:53,045 INFO L471 AbstractCegarLoop]: Abstraction has 1356 states and 1579 transitions. [2025-02-08 08:08:53,045 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 08:08:53,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1579 transitions. [2025-02-08 08:08:53,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-08 08:08:53,045 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:53,045 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 08:08:53,059 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 08:08:53,246 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 08:08:53,246 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:53,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:53,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1495763600, now seen corresponding path program 1 times [2025-02-08 08:08:53,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:53,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [764762711] [2025-02-08 08:08:53,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:53,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:53,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:53,249 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 08:08:53,250 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 08:08:53,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-08 08:08:53,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-08 08:08:53,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:53,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:53,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 08:08:53,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:53,476 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 08:08:53,533 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 08:08:53,543 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 08:08:53,543 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:53,543 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:53,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764762711] [2025-02-08 08:08:53,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764762711] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:53,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:53,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:08:53,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505157851] [2025-02-08 08:08:53,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:53,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:08:53,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:53,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:08:53,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:08:53,545 INFO L87 Difference]: Start difference. First operand 1356 states and 1579 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 08:08:55,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:55,594 INFO L93 Difference]: Finished difference Result 1368 states and 1594 transitions. [2025-02-08 08:08:55,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:08:55,594 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 08:08:55,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:55,597 INFO L225 Difference]: With dead ends: 1368 [2025-02-08 08:08:55,597 INFO L226 Difference]: Without dead ends: 1368 [2025-02-08 08:08:55,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:08:55,598 INFO L435 NwaCegarLoop]: 1100 mSDtfsCounter, 58 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:08:55,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4075 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-08 08:08:55,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2025-02-08 08:08:55,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1362. [2025-02-08 08:08:55,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 899 states have (on average 1.7296996662958843) internal successors, (1555), 1349 states have internal predecessors, (1555), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (10), 8 states have call predecessors, (10), 7 states have call successors, (10) [2025-02-08 08:08:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1589 transitions. [2025-02-08 08:08:55,609 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1589 transitions. Word has length 74 [2025-02-08 08:08:55,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:55,609 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 1589 transitions. [2025-02-08 08:08:55,610 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 08:08:55,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1589 transitions. [2025-02-08 08:08:55,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-08 08:08:55,610 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:55,610 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 08:08:55,620 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 08:08:55,810 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 08:08:55,811 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr526REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:55,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:55,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1495763601, now seen corresponding path program 1 times [2025-02-08 08:08:55,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:55,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241747272] [2025-02-08 08:08:55,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:55,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:55,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:55,813 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 08:08:55,815 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 08:08:55,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-08 08:08:56,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-08 08:08:56,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:56,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:56,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:08:56,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:56,081 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 08:08:56,081 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:08:56,081 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:56,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241747272] [2025-02-08 08:08:56,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241747272] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:08:56,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:08:56,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:08:56,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922536276] [2025-02-08 08:08:56,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:08:56,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:08:56,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:56,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:08:56,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:08:56,084 INFO L87 Difference]: Start difference. First operand 1362 states and 1589 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 08:08:56,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:56,124 INFO L93 Difference]: Finished difference Result 1359 states and 1583 transitions. [2025-02-08 08:08:56,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:08:56,125 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 08:08:56,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:56,128 INFO L225 Difference]: With dead ends: 1359 [2025-02-08 08:08:56,128 INFO L226 Difference]: Without dead ends: 1359 [2025-02-08 08:08:56,129 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 08:08:56,129 INFO L435 NwaCegarLoop]: 1160 mSDtfsCounter, 0 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3475 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 08:08:56,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3475 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:08:56,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2025-02-08 08:08:56,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1359. [2025-02-08 08:08:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 896 states have (on average 1.7310267857142858) internal successors, (1551), 1347 states have internal predecessors, (1551), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-08 08:08:56,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1583 transitions. [2025-02-08 08:08:56,146 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1583 transitions. Word has length 74 [2025-02-08 08:08:56,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:56,146 INFO L471 AbstractCegarLoop]: Abstraction has 1359 states and 1583 transitions. [2025-02-08 08:08:56,146 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 08:08:56,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1583 transitions. [2025-02-08 08:08:56,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-08 08:08:56,147 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:56,147 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 08:08:56,160 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 08:08:56,347 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 08:08:56,348 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:56,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:56,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1028632580, now seen corresponding path program 1 times [2025-02-08 08:08:56,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:56,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065158610] [2025-02-08 08:08:56,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:08:56,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:56,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:56,352 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 08:08:56,353 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 08:08:56,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-08 08:08:56,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-08 08:08:56,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:08:56,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:08:56,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:08:56,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:08:56,604 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 08:08:56,604 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:08:56,657 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 08:08:56,657 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:08:56,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065158610] [2025-02-08 08:08:56,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065158610] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:08:56,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:08:56,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 08:08:56,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401290882] [2025-02-08 08:08:56,657 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 08:08:56,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:08:56,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:08:56,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:08:56,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:08:56,658 INFO L87 Difference]: Start difference. First operand 1359 states and 1583 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 08:08:56,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:08:56,774 INFO L93 Difference]: Finished difference Result 1371 states and 1600 transitions. [2025-02-08 08:08:56,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:08:56,775 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 08:08:56,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:08:56,778 INFO L225 Difference]: With dead ends: 1371 [2025-02-08 08:08:56,778 INFO L226 Difference]: Without dead ends: 1371 [2025-02-08 08:08:56,779 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 08:08:56,779 INFO L435 NwaCegarLoop]: 1160 mSDtfsCounter, 8 mSDsluCounter, 4626 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5786 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 08:08:56,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5786 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:08:56,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2025-02-08 08:08:56,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1369. [2025-02-08 08:08:56,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 905 states have (on average 1.7303867403314916) internal successors, (1566), 1356 states have internal predecessors, (1566), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-08 08:08:56,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1598 transitions. [2025-02-08 08:08:56,796 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1598 transitions. Word has length 75 [2025-02-08 08:08:56,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:08:56,796 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 1598 transitions. [2025-02-08 08:08:56,796 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 08:08:56,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1598 transitions. [2025-02-08 08:08:56,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-02-08 08:08:56,797 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:08:56,797 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 08:08:56,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-08 08:08:56,997 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 08:08:56,998 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2025-02-08 08:08:56,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:08:56,998 INFO L85 PathProgramCache]: Analyzing trace with hash 884950928, now seen corresponding path program 2 times [2025-02-08 08:08:56,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:08:56,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1213561854] [2025-02-08 08:08:56,999 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:08:56,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:08:56,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:08:57,000 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 08:08:57,002 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 08:08:57,167 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-02-08 08:09:26,860 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 08:09:26,861 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:09:26,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:09:26,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 08:09:26,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:09:26,945 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 08:09:26,946 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 08:09:26,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 08:09:27,087 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 08:09:27,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2025-02-08 08:09:27,114 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 33 treesize of output 15 [2025-02-08 08:09:27,131 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-08 08:09:27,131 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:09:27,191 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2025-02-08 08:09:27,191 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 25 treesize of output 24 [2025-02-08 08:09:27,198 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1226 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem36#1.base| (select (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1226) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false [2025-02-08 08:09:27,202 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:09:27,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213561854] [2025-02-08 08:09:27,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213561854] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:09:27,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1430323922] [2025-02-08 08:09:27,203 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:09:27,203 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-08 08:09:27,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-08 08:09:27,205 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-08 08:09:27,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2025-02-08 08:09:27,443 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 78 statements into 2 equivalence classes. [2025-02-08 08:09:28,330 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 08:09:28,330 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:09:28,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:09:28,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 08:09:28,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:09:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:09:28,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:09:28,719 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:09:28,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1430323922] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:09:28,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:09:28,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2025-02-08 08:09:28,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907991701] [2025-02-08 08:09:28,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:09:28,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 08:09:28,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:09:28,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 08:09:28,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2025-02-08 08:09:28,721 INFO L87 Difference]: Start difference. First operand 1369 states and 1598 transitions. Second operand has 24 states, 23 states have (on average 6.173913043478261) internal successors, (142), 23 states have internal predecessors, (142), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)