./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.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_FNV_test5-3.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 a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 07:51:56,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 07:51:56,304 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 07:51:56,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 07:51:56,309 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 07:51:56,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 07:51:56,338 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 07:51:56,338 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 07:51:56,338 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 07:51:56,339 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 07:51:56,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 07:51:56,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 07:51:56,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 07:51:56,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 07:51:56,340 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 07:51:56,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 07:51:56,340 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 07:51:56,340 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 07:51:56,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 07:51:56,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 07:51:56,341 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 07:51:56,341 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 07:51:56,341 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 07:51:56,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 07:51:56,341 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 07:51:56,341 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 07:51:56,341 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 07:51:56,341 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 07:51:56,341 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 07:51:56,341 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 07:51:56,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 07:51:56,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 07:51:56,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 07:51:56,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 07:51:56,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 07:51:56,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 07:51:56,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 07:51:56,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 07:51:56,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 07:51:56,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 07:51:56,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 07:51:56,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 07:51:56,344 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 -> a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 [2025-02-08 07:51:56,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 07:51:56,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 07:51:56,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 07:51:56,643 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 07:51:56,643 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 07:51:56,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2025-02-08 07:51:57,998 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1cd9edf5e/8c3041d64d434e31a8f4d21c00633fea/FLAG1c9ad4ca5 [2025-02-08 07:51:58,362 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 07:51:58,365 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2025-02-08 07:51:58,386 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1cd9edf5e/8c3041d64d434e31a8f4d21c00633fea/FLAG1c9ad4ca5 [2025-02-08 07:51:58,572 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1cd9edf5e/8c3041d64d434e31a8f4d21c00633fea [2025-02-08 07:51:58,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 07:51:58,577 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 07:51:58,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 07:51:58,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 07:51:58,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 07:51:58,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:51:58" (1/1) ... [2025-02-08 07:51:58,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf8b581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:51:58, skipping insertion in model container [2025-02-08 07:51:58,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:51:58" (1/1) ... [2025-02-08 07:51:58,637 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 07:51:58,937 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:58,967 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:58,970 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:58,975 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:58,980 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,005 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,007 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,009 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,013 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,033 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,034 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,035 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,036 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,037 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,038 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,040 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,042 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,042 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,049 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,050 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,050 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,051 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,053 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:51:59,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:51:59,079 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-08 07:51:59,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31a9f491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:51:59, skipping insertion in model container [2025-02-08 07:51:59,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 07:51:59,080 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 07:51:59,082 INFO L158 Benchmark]: Toolchain (without parser) took 504.83ms. Allocated memory is still 142.6MB. Free memory was 110.1MB in the beginning and 86.4MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 07:51:59,082 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 07:51:59,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.68ms. Allocated memory is still 142.6MB. Free memory was 110.1MB in the beginning and 86.4MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 07:51:59,083 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.68ms. Allocated memory is still 142.6MB. Free memory was 110.1MB in the beginning and 86.4MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 760]: 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_FNV_test5-3.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 a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 07:52:01,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 07:52:01,206 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 07:52:01,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 07:52:01,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 07:52:01,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 07:52:01,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 07:52:01,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 07:52:01,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 07:52:01,242 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 07:52:01,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 07:52:01,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 07:52:01,244 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 07:52:01,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 07:52:01,244 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 07:52:01,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 07:52:01,245 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 07:52:01,245 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 07:52:01,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 07:52:01,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 07:52:01,245 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 07:52:01,245 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 07:52:01,246 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 07:52:01,246 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 07:52:01,246 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 07:52:01,246 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 07:52:01,246 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 07:52:01,246 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 07:52:01,246 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 07:52:01,246 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 07:52:01,247 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 07:52:01,247 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 07:52:01,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 07:52:01,247 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 07:52:01,247 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 07:52:01,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 07:52:01,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 07:52:01,248 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 07:52:01,248 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 07:52:01,248 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 07:52:01,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 07:52:01,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 07:52:01,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 07:52:01,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 07:52:01,249 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 -> a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 [2025-02-08 07:52:01,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 07:52:01,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 07:52:01,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 07:52:01,558 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 07:52:01,559 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 07:52:01,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2025-02-08 07:52:02,952 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ab04078d/4986bf3a115142899d8ffb3e5e05ecd1/FLAG9176b22bd [2025-02-08 07:52:03,325 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 07:52:03,327 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2025-02-08 07:52:03,349 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ab04078d/4986bf3a115142899d8ffb3e5e05ecd1/FLAG9176b22bd [2025-02-08 07:52:03,527 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ab04078d/4986bf3a115142899d8ffb3e5e05ecd1 [2025-02-08 07:52:03,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 07:52:03,531 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 07:52:03,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 07:52:03,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 07:52:03,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 07:52:03,538 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:52:03" (1/1) ... [2025-02-08 07:52:03,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@485928ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:03, skipping insertion in model container [2025-02-08 07:52:03,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 07:52:03" (1/1) ... [2025-02-08 07:52:03,596 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 07:52:03,961 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:03,997 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,001 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,005 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,013 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,050 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,053 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,056 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,065 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,088 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,089 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,091 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,091 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,092 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,094 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,095 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,096 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,096 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,101 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,101 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,102 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,102 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,106 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:52:04,130 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 07:52:04,153 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 07:52:04,181 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,201 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,204 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,206 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,210 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,233 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,236 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,238 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,246 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,261 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,262 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,263 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,264 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 07:52:04,265 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,268 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,268 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,271 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,272 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,274 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,274 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 07:52:04,277 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 07:52:04,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:52:04,288 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 07:52:04,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 07:52:04,456 INFO L204 MainTranslator]: Completed translation [2025-02-08 07:52:04,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04 WrapperNode [2025-02-08 07:52:04,457 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 07:52:04,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 07:52:04,458 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 07:52:04,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 07:52:04,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (1/1) ... [2025-02-08 07:52:04,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (1/1) ... [2025-02-08 07:52:04,565 INFO L138 Inliner]: procedures = 180, calls = 474, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2025-02-08 07:52:04,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 07:52:04,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 07:52:04,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 07:52:04,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 07:52:04,576 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (1/1) ... [2025-02-08 07:52:04,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (1/1) ... [2025-02-08 07:52:04,600 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (1/1) ... [2025-02-08 07:52:04,747 INFO L175 MemorySlicer]: Split 443 memory accesses to 3 slices as follows [2, 24, 417]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 99 writes are split as follows [0, 1, 98]. [2025-02-08 07:52:04,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (1/1) ... [2025-02-08 07:52:04,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (1/1) ... [2025-02-08 07:52:04,841 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (1/1) ... [2025-02-08 07:52:04,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (1/1) ... [2025-02-08 07:52:04,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (1/1) ... [2025-02-08 07:52:04,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (1/1) ... [2025-02-08 07:52:04,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 07:52:04,875 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 07:52:04,875 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 07:52:04,875 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 07:52:04,876 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (1/1) ... [2025-02-08 07:52:04,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 07:52:04,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:04,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 07:52:04,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 07:52:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 07:52:04,939 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 07:52:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 07:52:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 07:52:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 07:52:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 07:52:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 07:52:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 07:52:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 07:52:04,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 07:52:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 07:52:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 07:52:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 07:52:04,940 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 07:52:04,940 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 07:52:04,941 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 07:52:04,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 07:52:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 07:52:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 07:52:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 07:52:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 07:52:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 07:52:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 07:52:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 07:52:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 07:52:04,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 07:52:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 07:52:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 07:52:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 07:52:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 07:52:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 07:52:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 07:52:04,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 07:52:04,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 07:52:05,232 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 07:52:05,234 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 07:52:10,734 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: call ULTIMATE.dealloc(main_~#j~0#1.base, main_~#j~0#1.offset);havoc main_~#j~0#1.base, main_~#j~0#1.offset; [2025-02-08 07:52:10,879 INFO L? ?]: Removed 1904 outVars from TransFormulas that were not future-live. [2025-02-08 07:52:10,880 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 07:52:10,916 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 07:52:10,916 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 07:52:10,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 07:52:10 BoogieIcfgContainer [2025-02-08 07:52:10,917 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 07:52:10,919 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 07:52:10,919 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 07:52:10,924 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 07:52:10,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 07:52:03" (1/3) ... [2025-02-08 07:52:10,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4439db8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 07:52:10, skipping insertion in model container [2025-02-08 07:52:10,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 07:52:04" (2/3) ... [2025-02-08 07:52:10,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4439db8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 07:52:10, skipping insertion in model container [2025-02-08 07:52:10,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 07:52:10" (3/3) ... [2025-02-08 07:52:10,927 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-3.i [2025-02-08 07:52:10,939 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 07:52:10,941 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test5-3.i that has 6 procedures, 1845 locations, 1 initial locations, 58 loop locations, and 915 error locations. [2025-02-08 07:52:11,006 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 07:52:11,018 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;@6359b701, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 07:52:11,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 915 error locations. [2025-02-08 07:52:11,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 1835 states, 908 states have (on average 2.2136563876651985) internal successors, (2010), 1824 states have internal predecessors, (2010), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-08 07:52:11,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 07:52:11,033 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:11,033 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 07:52:11,034 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr912REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:11,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:11,038 INFO L85 PathProgramCache]: Analyzing trace with hash 63814174, now seen corresponding path program 1 times [2025-02-08 07:52:11,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:11,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2082228330] [2025-02-08 07:52:11,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:11,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:11,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:11,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:11,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 07:52:11,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 07:52:11,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 07:52:11,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:11,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:11,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 07:52:11,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:11,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:11,292 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:11,293 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:11,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082228330] [2025-02-08 07:52:11,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082228330] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:11,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:11,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:52:11,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159382501] [2025-02-08 07:52:11,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:11,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 07:52:11,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:11,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 07:52:11,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 07:52:11,325 INFO L87 Difference]: Start difference. First operand has 1835 states, 908 states have (on average 2.2136563876651985) internal successors, (2010), 1824 states have internal predecessors, (2010), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:11,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:11,409 INFO L93 Difference]: Finished difference Result 1815 states and 1915 transitions. [2025-02-08 07:52:11,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 07:52:11,415 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2025-02-08 07:52:11,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:11,438 INFO L225 Difference]: With dead ends: 1815 [2025-02-08 07:52:11,438 INFO L226 Difference]: Without dead ends: 1810 [2025-02-08 07:52:11,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 07:52:11,443 INFO L435 NwaCegarLoop]: 1915 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:11,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 07:52:11,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2025-02-08 07:52:11,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1810. [2025-02-08 07:52:11,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1810 states, 897 states have (on average 2.1036789297658864) internal successors, (1887), 1800 states have internal predecessors, (1887), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 07:52:11,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1810 states to 1810 states and 1906 transitions. [2025-02-08 07:52:11,537 INFO L78 Accepts]: Start accepts. Automaton has 1810 states and 1906 transitions. Word has length 4 [2025-02-08 07:52:11,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:11,537 INFO L471 AbstractCegarLoop]: Abstraction has 1810 states and 1906 transitions. [2025-02-08 07:52:11,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:11,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1810 states and 1906 transitions. [2025-02-08 07:52:11,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 07:52:11,539 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:11,539 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 07:52:11,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 07:52:11,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:11,740 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr912REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:11,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:11,741 INFO L85 PathProgramCache]: Analyzing trace with hash 63814205, now seen corresponding path program 1 times [2025-02-08 07:52:11,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:11,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99133368] [2025-02-08 07:52:11,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:11,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:11,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:11,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:11,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 07:52:11,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 07:52:11,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 07:52:11,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:11,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:11,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:52:11,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:11,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-08 07:52:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:11,976 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:11,976 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:11,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99133368] [2025-02-08 07:52:11,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99133368] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:11,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:11,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:52:11,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900703957] [2025-02-08 07:52:11,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:11,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:52:11,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:11,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:52:11,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:52:11,978 INFO L87 Difference]: Start difference. First operand 1810 states and 1906 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:14,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:14,382 INFO L93 Difference]: Finished difference Result 1945 states and 2068 transitions. [2025-02-08 07:52:14,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:52:14,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-02-08 07:52:14,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:14,390 INFO L225 Difference]: With dead ends: 1945 [2025-02-08 07:52:14,390 INFO L226 Difference]: Without dead ends: 1945 [2025-02-08 07:52:14,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:52:14,391 INFO L435 NwaCegarLoop]: 1368 mSDtfsCounter, 1271 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:14,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 1740 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-08 07:52:14,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2025-02-08 07:52:14,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1718. [2025-02-08 07:52:14,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1718 states, 897 states have (on average 2.001114827201784) internal successors, (1795), 1708 states have internal predecessors, (1795), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 07:52:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 1814 transitions. [2025-02-08 07:52:14,433 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 1814 transitions. Word has length 4 [2025-02-08 07:52:14,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:14,433 INFO L471 AbstractCegarLoop]: Abstraction has 1718 states and 1814 transitions. [2025-02-08 07:52:14,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:14,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 1814 transitions. [2025-02-08 07:52:14,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 07:52:14,434 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:14,434 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 07:52:14,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 07:52:14,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:14,635 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr913REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:14,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:14,635 INFO L85 PathProgramCache]: Analyzing trace with hash 63814206, now seen corresponding path program 1 times [2025-02-08 07:52:14,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:14,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104459362] [2025-02-08 07:52:14,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:14,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:14,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:14,639 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:14,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 07:52:14,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 07:52:14,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 07:52:14,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:14,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:14,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 07:52:14,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:14,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 07:52:14,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:14,822 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:14,822 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:14,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104459362] [2025-02-08 07:52:14,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104459362] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:14,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:14,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:52:14,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756968296] [2025-02-08 07:52:14,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:14,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:52:14,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:14,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:52:14,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:52:14,824 INFO L87 Difference]: Start difference. First operand 1718 states and 1814 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:17,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:17,668 INFO L93 Difference]: Finished difference Result 2268 states and 2410 transitions. [2025-02-08 07:52:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:52:17,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-02-08 07:52:17,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:17,676 INFO L225 Difference]: With dead ends: 2268 [2025-02-08 07:52:17,676 INFO L226 Difference]: Without dead ends: 2268 [2025-02-08 07:52:17,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:52:17,676 INFO L435 NwaCegarLoop]: 1730 mSDtfsCounter, 773 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:17,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 2541 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-02-08 07:52:17,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2025-02-08 07:52:17,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 1890. [2025-02-08 07:52:17,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1079 states have (on average 1.964782205746061) internal successors, (2120), 1880 states have internal predecessors, (2120), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 07:52:17,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2139 transitions. [2025-02-08 07:52:17,726 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2139 transitions. Word has length 4 [2025-02-08 07:52:17,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:17,727 INFO L471 AbstractCegarLoop]: Abstraction has 1890 states and 2139 transitions. [2025-02-08 07:52:17,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:17,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2139 transitions. [2025-02-08 07:52:17,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 07:52:17,727 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:17,727 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 07:52:17,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 07:52:17,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:17,932 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr292REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:17,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:17,933 INFO L85 PathProgramCache]: Analyzing trace with hash 62513376, now seen corresponding path program 1 times [2025-02-08 07:52:17,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:17,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440459653] [2025-02-08 07:52:17,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:17,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:17,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:17,935 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:17,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 07:52:18,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 07:52:18,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 07:52:18,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:18,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:18,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:52:18,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:18,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-08 07:52:18,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:18,083 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:18,083 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:18,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440459653] [2025-02-08 07:52:18,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440459653] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:18,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:18,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 07:52:18,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640206281] [2025-02-08 07:52:18,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:18,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:52:18,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:18,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:52:18,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:52:18,086 INFO L87 Difference]: Start difference. First operand 1890 states and 2139 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:20,612 INFO L93 Difference]: Finished difference Result 3391 states and 3862 transitions. [2025-02-08 07:52:20,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:52:20,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2025-02-08 07:52:20,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:20,622 INFO L225 Difference]: With dead ends: 3391 [2025-02-08 07:52:20,622 INFO L226 Difference]: Without dead ends: 3391 [2025-02-08 07:52:20,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:52:20,623 INFO L435 NwaCegarLoop]: 1259 mSDtfsCounter, 1600 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:20,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 2088 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-02-08 07:52:20,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3391 states. [2025-02-08 07:52:20,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3391 to 2428. [2025-02-08 07:52:20,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 1618 states have (on average 1.927070457354759) internal successors, (3118), 2414 states have internal predecessors, (3118), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:52:20,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3145 transitions. [2025-02-08 07:52:20,673 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3145 transitions. Word has length 4 [2025-02-08 07:52:20,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:20,674 INFO L471 AbstractCegarLoop]: Abstraction has 2428 states and 3145 transitions. [2025-02-08 07:52:20,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:20,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3145 transitions. [2025-02-08 07:52:20,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 07:52:20,674 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:20,674 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 07:52:20,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 07:52:20,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:20,875 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr293REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:20,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:20,875 INFO L85 PathProgramCache]: Analyzing trace with hash 62513377, now seen corresponding path program 1 times [2025-02-08 07:52:20,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:20,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2120525616] [2025-02-08 07:52:20,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:20,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:20,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:20,878 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:20,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 07:52:21,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 07:52:21,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 07:52:21,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:21,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:21,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 07:52:21,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:21,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:21,028 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:21,028 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:21,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120525616] [2025-02-08 07:52:21,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120525616] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:21,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:21,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:52:21,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391782582] [2025-02-08 07:52:21,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:21,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:52:21,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:21,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:52:21,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:52:21,029 INFO L87 Difference]: Start difference. First operand 2428 states and 3145 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:21,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:21,155 INFO L93 Difference]: Finished difference Result 4102 states and 5208 transitions. [2025-02-08 07:52:21,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:52:21,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2025-02-08 07:52:21,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:21,171 INFO L225 Difference]: With dead ends: 4102 [2025-02-08 07:52:21,171 INFO L226 Difference]: Without dead ends: 4102 [2025-02-08 07:52:21,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:52:21,172 INFO L435 NwaCegarLoop]: 2228 mSDtfsCounter, 1365 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 4020 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:21,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 4020 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 07:52:21,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4102 states. [2025-02-08 07:52:21,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4102 to 2430. [2025-02-08 07:52:21,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 1620 states have (on average 1.9253086419753087) internal successors, (3119), 2416 states have internal predecessors, (3119), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:52:21,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3146 transitions. [2025-02-08 07:52:21,221 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3146 transitions. Word has length 4 [2025-02-08 07:52:21,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:21,221 INFO L471 AbstractCegarLoop]: Abstraction has 2430 states and 3146 transitions. [2025-02-08 07:52:21,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:21,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3146 transitions. [2025-02-08 07:52:21,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-08 07:52:21,222 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:21,222 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:52:21,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 07:52:21,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:21,423 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr908REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:21,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:21,423 INFO L85 PathProgramCache]: Analyzing trace with hash -444248042, now seen corresponding path program 1 times [2025-02-08 07:52:21,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:21,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [478689621] [2025-02-08 07:52:21,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:21,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:21,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:21,426 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:21,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 07:52:21,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 07:52:21,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 07:52:21,584 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:21,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:21,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:52:21,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:21,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:21,610 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:21,611 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:21,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478689621] [2025-02-08 07:52:21,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478689621] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:21,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:21,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 07:52:21,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614450885] [2025-02-08 07:52:21,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:21,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:52:21,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:21,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:52:21,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:52:21,614 INFO L87 Difference]: Start difference. First operand 2430 states and 3146 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:24,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:24,388 INFO L93 Difference]: Finished difference Result 2415 states and 3108 transitions. [2025-02-08 07:52:24,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:52:24,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-02-08 07:52:24,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:24,396 INFO L225 Difference]: With dead ends: 2415 [2025-02-08 07:52:24,396 INFO L226 Difference]: Without dead ends: 2415 [2025-02-08 07:52:24,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:52:24,398 INFO L435 NwaCegarLoop]: 1091 mSDtfsCounter, 1321 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 1921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:24,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2117 Invalid, 1921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-02-08 07:52:24,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2415 states. [2025-02-08 07:52:24,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2415 to 2407. [2025-02-08 07:52:24,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 1620 states have (on average 1.8969135802469135) internal successors, (3073), 2393 states have internal predecessors, (3073), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:52:24,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3100 transitions. [2025-02-08 07:52:24,460 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3100 transitions. Word has length 10 [2025-02-08 07:52:24,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:24,460 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 3100 transitions. [2025-02-08 07:52:24,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:24,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3100 transitions. [2025-02-08 07:52:24,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-08 07:52:24,461 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:24,461 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:52:24,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 07:52:24,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:24,662 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr909REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:24,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:24,663 INFO L85 PathProgramCache]: Analyzing trace with hash -444248041, now seen corresponding path program 1 times [2025-02-08 07:52:24,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:24,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750366398] [2025-02-08 07:52:24,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:24,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:24,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:24,666 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:24,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 07:52:24,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 07:52:24,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 07:52:24,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:24,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:24,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 07:52:24,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:24,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 07:52:24,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:24,931 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:24,931 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:24,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750366398] [2025-02-08 07:52:24,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750366398] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:24,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:24,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 07:52:24,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932969753] [2025-02-08 07:52:24,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:24,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:52:24,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:24,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:52:24,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:52:24,932 INFO L87 Difference]: Start difference. First operand 2407 states and 3100 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:28,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:28,617 INFO L93 Difference]: Finished difference Result 2927 states and 3539 transitions. [2025-02-08 07:52:28,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:52:28,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-02-08 07:52:28,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:28,626 INFO L225 Difference]: With dead ends: 2927 [2025-02-08 07:52:28,626 INFO L226 Difference]: Without dead ends: 2927 [2025-02-08 07:52:28,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:52:28,627 INFO L435 NwaCegarLoop]: 1453 mSDtfsCounter, 895 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 2034 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:28,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 3152 Invalid, 2056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2034 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-02-08 07:52:28,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2025-02-08 07:52:28,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2521. [2025-02-08 07:52:28,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 1734 states have (on average 1.8517877739331026) internal successors, (3211), 2507 states have internal predecessors, (3211), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:52:28,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3238 transitions. [2025-02-08 07:52:28,664 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3238 transitions. Word has length 10 [2025-02-08 07:52:28,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:28,664 INFO L471 AbstractCegarLoop]: Abstraction has 2521 states and 3238 transitions. [2025-02-08 07:52:28,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:28,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3238 transitions. [2025-02-08 07:52:28,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-02-08 07:52:28,665 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:28,665 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] [2025-02-08 07:52:28,676 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 07:52:28,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:28,867 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr909REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:28,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:28,867 INFO L85 PathProgramCache]: Analyzing trace with hash 643387419, now seen corresponding path program 1 times [2025-02-08 07:52:28,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:28,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [523704409] [2025-02-08 07:52:28,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:28,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:28,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:28,870 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:28,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 07:52:29,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-08 07:52:29,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 07:52:29,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:29,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:29,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 07:52:29,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:29,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 07:52:29,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:29,249 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:52:29,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:29,663 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:29,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523704409] [2025-02-08 07:52:29,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523704409] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:52:29,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 07:52:29,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-02-08 07:52:29,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620989123] [2025-02-08 07:52:29,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 07:52:29,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 07:52:29,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:29,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 07:52:29,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-08 07:52:29,666 INFO L87 Difference]: Start difference. First operand 2521 states and 3238 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:38,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:38,660 INFO L93 Difference]: Finished difference Result 3335 states and 4109 transitions. [2025-02-08 07:52:38,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 07:52:38,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 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 29 [2025-02-08 07:52:38,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:38,667 INFO L225 Difference]: With dead ends: 3335 [2025-02-08 07:52:38,667 INFO L226 Difference]: Without dead ends: 3335 [2025-02-08 07:52:38,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2025-02-08 07:52:38,668 INFO L435 NwaCegarLoop]: 1454 mSDtfsCounter, 1500 mSDsluCounter, 4312 mSDsCounter, 0 mSdLazyCounter, 4720 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 5766 SdHoareTripleChecker+Invalid, 4748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:38,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 5766 Invalid, 4748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4720 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2025-02-08 07:52:38,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2025-02-08 07:52:38,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 2685. [2025-02-08 07:52:38,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 1898 states have (on average 1.8140147523709167) internal successors, (3443), 2671 states have internal predecessors, (3443), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:52:38,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3470 transitions. [2025-02-08 07:52:38,719 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3470 transitions. Word has length 29 [2025-02-08 07:52:38,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:38,720 INFO L471 AbstractCegarLoop]: Abstraction has 2685 states and 3470 transitions. [2025-02-08 07:52:38,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:38,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3470 transitions. [2025-02-08 07:52:38,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-02-08 07:52:38,721 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:38,721 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] [2025-02-08 07:52:38,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 07:52:38,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:38,922 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr856REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:38,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:38,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1532367938, now seen corresponding path program 1 times [2025-02-08 07:52:38,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:38,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876568169] [2025-02-08 07:52:38,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:38,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:38,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:38,926 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:38,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 07:52:39,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 07:52:39,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 07:52:39,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:39,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:39,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:52:39,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:39,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:39,312 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:39,313 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:39,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876568169] [2025-02-08 07:52:39,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876568169] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:39,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:39,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 07:52:39,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935646314] [2025-02-08 07:52:39,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:39,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 07:52:39,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:39,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 07:52:39,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:52:39,314 INFO L87 Difference]: Start difference. First operand 2685 states and 3470 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:39,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:39,505 INFO L93 Difference]: Finished difference Result 3281 states and 4161 transitions. [2025-02-08 07:52:39,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 07:52:39,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2025-02-08 07:52:39,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:39,513 INFO L225 Difference]: With dead ends: 3281 [2025-02-08 07:52:39,513 INFO L226 Difference]: Without dead ends: 3281 [2025-02-08 07:52:39,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 07:52:39,514 INFO L435 NwaCegarLoop]: 1852 mSDtfsCounter, 445 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:39,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 3565 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 07:52:39,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2025-02-08 07:52:39,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 2903. [2025-02-08 07:52:39,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2903 states, 2116 states have (on average 1.768431001890359) internal successors, (3742), 2889 states have internal predecessors, (3742), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:52:39,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2903 states to 2903 states and 3769 transitions. [2025-02-08 07:52:39,552 INFO L78 Accepts]: Start accepts. Automaton has 2903 states and 3769 transitions. Word has length 42 [2025-02-08 07:52:39,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:39,552 INFO L471 AbstractCegarLoop]: Abstraction has 2903 states and 3769 transitions. [2025-02-08 07:52:39,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:39,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2903 states and 3769 transitions. [2025-02-08 07:52:39,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-02-08 07:52:39,555 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:39,555 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] [2025-02-08 07:52:39,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 07:52:39,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:39,755 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr827REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:39,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:39,756 INFO L85 PathProgramCache]: Analyzing trace with hash 433611862, now seen corresponding path program 1 times [2025-02-08 07:52:39,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:39,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [642491759] [2025-02-08 07:52:39,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:39,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:39,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:39,761 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:39,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 07:52:39,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 07:52:39,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 07:52:39,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:39,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:39,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:52:39,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:40,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:40,024 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:40,024 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:40,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642491759] [2025-02-08 07:52:40,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642491759] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:40,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:40,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:52:40,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398433452] [2025-02-08 07:52:40,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:40,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:52:40,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:40,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:52:40,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:52:40,026 INFO L87 Difference]: Start difference. First operand 2903 states and 3769 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:40,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:40,116 INFO L93 Difference]: Finished difference Result 2448 states and 3115 transitions. [2025-02-08 07:52:40,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 07:52:40,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 45 [2025-02-08 07:52:40,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:40,123 INFO L225 Difference]: With dead ends: 2448 [2025-02-08 07:52:40,123 INFO L226 Difference]: Without dead ends: 2448 [2025-02-08 07:52:40,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:52:40,124 INFO L435 NwaCegarLoop]: 1719 mSDtfsCounter, 56 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 5084 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:40,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 5084 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 07:52:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2025-02-08 07:52:40,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 2445. [2025-02-08 07:52:40,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 1681 states have (on average 1.8352171326591316) internal successors, (3085), 2431 states have internal predecessors, (3085), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:52:40,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 3112 transitions. [2025-02-08 07:52:40,170 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 3112 transitions. Word has length 45 [2025-02-08 07:52:40,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:40,172 INFO L471 AbstractCegarLoop]: Abstraction has 2445 states and 3112 transitions. [2025-02-08 07:52:40,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:40,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 3112 transitions. [2025-02-08 07:52:40,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-08 07:52:40,175 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:40,175 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:52:40,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-08 07:52:40,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:40,380 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr827REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:40,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:40,380 INFO L85 PathProgramCache]: Analyzing trace with hash -383926754, now seen corresponding path program 1 times [2025-02-08 07:52:40,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:40,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [452996528] [2025-02-08 07:52:40,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:40,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:40,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:40,383 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:40,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 07:52:40,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 07:52:40,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 07:52:40,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:40,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:40,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 07:52:40,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:40,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 07:52:41,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-08 07:52:41,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-02-08 07:52:41,029 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 07:52:41,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-08 07:52:41,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:41,036 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:41,036 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:41,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452996528] [2025-02-08 07:52:41,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452996528] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:41,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:41,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 07:52:41,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852880791] [2025-02-08 07:52:41,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:41,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:52:41,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:41,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:52:41,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:52:41,037 INFO L87 Difference]: Start difference. First operand 2445 states and 3112 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:43,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:43,332 INFO L93 Difference]: Finished difference Result 2361 states and 2992 transitions. [2025-02-08 07:52:43,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:52:43,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2025-02-08 07:52:43,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:43,338 INFO L225 Difference]: With dead ends: 2361 [2025-02-08 07:52:43,338 INFO L226 Difference]: Without dead ends: 2361 [2025-02-08 07:52:43,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 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 07:52:43,339 INFO L435 NwaCegarLoop]: 843 mSDtfsCounter, 1156 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:43,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 1174 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-08 07:52:43,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2025-02-08 07:52:43,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 2001. [2025-02-08 07:52:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 1321 states have (on average 1.740348221044663) internal successors, (2299), 1987 states have internal predecessors, (2299), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:52:43,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2326 transitions. [2025-02-08 07:52:43,368 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2326 transitions. Word has length 53 [2025-02-08 07:52:43,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:43,369 INFO L471 AbstractCegarLoop]: Abstraction has 2001 states and 2326 transitions. [2025-02-08 07:52:43,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:43,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2326 transitions. [2025-02-08 07:52:43,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-02-08 07:52:43,370 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:43,370 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] [2025-02-08 07:52:43,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 07:52:43,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:43,571 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr820REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:43,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:43,571 INFO L85 PathProgramCache]: Analyzing trace with hash 290424193, now seen corresponding path program 1 times [2025-02-08 07:52:43,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:43,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923724044] [2025-02-08 07:52:43,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:43,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:43,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:43,574 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:43,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 07:52:43,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-08 07:52:43,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-08 07:52:43,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:43,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:43,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 07:52:43,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:43,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-08 07:52:43,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-08 07:52:43,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-08 07:52:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:43,859 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:43,859 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:43,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923724044] [2025-02-08 07:52:43,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923724044] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:43,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:43,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:52:43,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840494741] [2025-02-08 07:52:43,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:43,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 07:52:43,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:43,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 07:52:43,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:52:43,860 INFO L87 Difference]: Start difference. First operand 2001 states and 2326 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:46,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:46,316 INFO L93 Difference]: Finished difference Result 2000 states and 2324 transitions. [2025-02-08 07:52:46,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 07:52:46,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 58 [2025-02-08 07:52:46,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:46,321 INFO L225 Difference]: With dead ends: 2000 [2025-02-08 07:52:46,321 INFO L226 Difference]: Without dead ends: 2000 [2025-02-08 07:52:46,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 07:52:46,322 INFO L435 NwaCegarLoop]: 1645 mSDtfsCounter, 2 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4250 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:46,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4250 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-02-08 07:52:46,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2025-02-08 07:52:46,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 2000. [2025-02-08 07:52:46,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2000 states, 1321 states have (on average 1.7388342165026496) internal successors, (2297), 1986 states have internal predecessors, (2297), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:52:46,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2324 transitions. [2025-02-08 07:52:46,340 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2324 transitions. Word has length 58 [2025-02-08 07:52:46,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:46,341 INFO L471 AbstractCegarLoop]: Abstraction has 2000 states and 2324 transitions. [2025-02-08 07:52:46,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:46,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2324 transitions. [2025-02-08 07:52:46,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-02-08 07:52:46,342 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:46,342 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] [2025-02-08 07:52:46,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-08 07:52:46,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:46,543 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr821REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:46,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:46,543 INFO L85 PathProgramCache]: Analyzing trace with hash 290424194, now seen corresponding path program 1 times [2025-02-08 07:52:46,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:46,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1391732239] [2025-02-08 07:52:46,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:46,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:46,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:46,545 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:46,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 07:52:46,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-08 07:52:46,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-08 07:52:46,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:46,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:46,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 07:52:46,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:46,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 07:52:46,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-08 07:52:46,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-02-08 07:52:46,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2025-02-08 07:52:46,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:46,857 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:46,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:46,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391732239] [2025-02-08 07:52:46,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391732239] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:46,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:46,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:52:46,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788288110] [2025-02-08 07:52:46,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:46,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 07:52:46,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:46,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 07:52:46,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 07:52:46,859 INFO L87 Difference]: Start difference. First operand 2000 states and 2324 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:49,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:49,883 INFO L93 Difference]: Finished difference Result 1999 states and 2322 transitions. [2025-02-08 07:52:49,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 07:52:49,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 58 [2025-02-08 07:52:49,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:49,887 INFO L225 Difference]: With dead ends: 1999 [2025-02-08 07:52:49,887 INFO L226 Difference]: Without dead ends: 1999 [2025-02-08 07:52:49,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 07:52:49,888 INFO L435 NwaCegarLoop]: 1645 mSDtfsCounter, 1 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4296 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:49,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4296 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2025-02-08 07:52:49,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2025-02-08 07:52:49,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1999. [2025-02-08 07:52:49,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1319 states have (on average 1.7399545109931767) internal successors, (2295), 1985 states have internal predecessors, (2295), 17 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 07:52:49,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 2322 transitions. [2025-02-08 07:52:49,907 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 2322 transitions. Word has length 58 [2025-02-08 07:52:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:49,907 INFO L471 AbstractCegarLoop]: Abstraction has 1999 states and 2322 transitions. [2025-02-08 07:52:49,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 07:52:49,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 2322 transitions. [2025-02-08 07:52:49,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 07:52:49,908 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:49,908 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:52:49,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-08 07:52:50,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:50,116 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:50,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:50,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1617695070, now seen corresponding path program 1 times [2025-02-08 07:52:50,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:50,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [140262637] [2025-02-08 07:52:50,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:50,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:50,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:50,119 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:50,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-08 07:52:50,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 07:52:50,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 07:52:50,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:50,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:50,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 07:52:50,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:50,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-08 07:52:50,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-08 07:52:50,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:50,430 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:50,430 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:50,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140262637] [2025-02-08 07:52:50,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140262637] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:50,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:50,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 07:52:50,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354825671] [2025-02-08 07:52:50,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:50,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 07:52:50,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:50,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 07:52:50,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 07:52:50,432 INFO L87 Difference]: Start difference. First operand 1999 states and 2322 transitions. Second operand has 7 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 07:52:53,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:53,983 INFO L93 Difference]: Finished difference Result 2017 states and 2353 transitions. [2025-02-08 07:52:53,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 07:52:53,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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 66 [2025-02-08 07:52:53,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:53,988 INFO L225 Difference]: With dead ends: 2017 [2025-02-08 07:52:53,988 INFO L226 Difference]: Without dead ends: 2017 [2025-02-08 07:52:53,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-08 07:52:53,989 INFO L435 NwaCegarLoop]: 1629 mSDtfsCounter, 11 mSDsluCounter, 5224 mSDsCounter, 0 mSdLazyCounter, 3013 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 6853 SdHoareTripleChecker+Invalid, 3026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:53,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 6853 Invalid, 3026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3013 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2025-02-08 07:52:53,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2025-02-08 07:52:54,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 2008. [2025-02-08 07:52:54,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 1327 states have (on average 1.7377543330821401) internal successors, (2306), 1992 states have internal predecessors, (2306), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (20), 12 states have call predecessors, (20), 10 states have call successors, (20) [2025-02-08 07:52:54,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2343 transitions. [2025-02-08 07:52:54,004 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2343 transitions. Word has length 66 [2025-02-08 07:52:54,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:54,004 INFO L471 AbstractCegarLoop]: Abstraction has 2008 states and 2343 transitions. [2025-02-08 07:52:54,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 07:52:54,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2343 transitions. [2025-02-08 07:52:54,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-08 07:52:54,005 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:54,005 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:52:54,016 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-08 07:52:54,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:54,205 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr817REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:54,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:54,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1617695071, now seen corresponding path program 1 times [2025-02-08 07:52:54,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:54,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419175316] [2025-02-08 07:52:54,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:54,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:54,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:54,208 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:54,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-08 07:52:54,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-08 07:52:54,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-08 07:52:54,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:54,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:54,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 07:52:54,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:54,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:54,459 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 07:52:54,459 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:54,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419175316] [2025-02-08 07:52:54,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419175316] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 07:52:54,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 07:52:54,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 07:52:54,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005666265] [2025-02-08 07:52:54,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 07:52:54,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 07:52:54,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:54,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 07:52:54,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:52:54,461 INFO L87 Difference]: Start difference. First operand 2008 states and 2343 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 07:52:54,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:54,539 INFO L93 Difference]: Finished difference Result 2002 states and 2327 transitions. [2025-02-08 07:52:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 07:52:54,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 66 [2025-02-08 07:52:54,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:54,545 INFO L225 Difference]: With dead ends: 2002 [2025-02-08 07:52:54,545 INFO L226 Difference]: Without dead ends: 2002 [2025-02-08 07:52:54,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 07:52:54,547 INFO L435 NwaCegarLoop]: 1644 mSDtfsCounter, 0 mSDsluCounter, 3280 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4924 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:54,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4924 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 07:52:54,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2025-02-08 07:52:54,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 2002. [2025-02-08 07:52:54,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2002 states, 1321 states have (on average 1.7395912187736564) internal successors, (2298), 1988 states have internal predecessors, (2298), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-02-08 07:52:54,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2002 states to 2002 states and 2327 transitions. [2025-02-08 07:52:54,571 INFO L78 Accepts]: Start accepts. Automaton has 2002 states and 2327 transitions. Word has length 66 [2025-02-08 07:52:54,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:54,572 INFO L471 AbstractCegarLoop]: Abstraction has 2002 states and 2327 transitions. [2025-02-08 07:52:54,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 07:52:54,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2002 states and 2327 transitions. [2025-02-08 07:52:54,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-02-08 07:52:54,573 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:54,573 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] [2025-02-08 07:52:54,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-08 07:52:54,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:54,773 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:54,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:54,774 INFO L85 PathProgramCache]: Analyzing trace with hash 41354059, now seen corresponding path program 1 times [2025-02-08 07:52:54,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:54,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [826608253] [2025-02-08 07:52:54,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:52:54,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:54,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:54,776 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:54,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-08 07:52:54,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-02-08 07:52:55,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-02-08 07:52:55,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:52:55,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:52:55,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 07:52:55,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:52:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:55,027 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:52:55,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:52:55,075 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:52:55,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826608253] [2025-02-08 07:52:55,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826608253] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:52:55,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 07:52:55,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 07:52:55,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429352013] [2025-02-08 07:52:55,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 07:52:55,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 07:52:55,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:52:55,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 07:52:55,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 07:52:55,076 INFO L87 Difference]: Start difference. First operand 2002 states and 2327 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 07:52:55,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:52:55,188 INFO L93 Difference]: Finished difference Result 2014 states and 2345 transitions. [2025-02-08 07:52:55,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 07:52:55,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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 67 [2025-02-08 07:52:55,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:52:55,194 INFO L225 Difference]: With dead ends: 2014 [2025-02-08 07:52:55,194 INFO L226 Difference]: Without dead ends: 2014 [2025-02-08 07:52:55,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-08 07:52:55,195 INFO L435 NwaCegarLoop]: 1643 mSDtfsCounter, 8 mSDsluCounter, 3282 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4925 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 07:52:55,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4925 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 07:52:55,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2025-02-08 07:52:55,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2012. [2025-02-08 07:52:55,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2012 states, 1330 states have (on average 1.7390977443609024) internal successors, (2313), 1997 states have internal predecessors, (2313), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-02-08 07:52:55,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2342 transitions. [2025-02-08 07:52:55,218 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2342 transitions. Word has length 67 [2025-02-08 07:52:55,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:52:55,218 INFO L471 AbstractCegarLoop]: Abstraction has 2012 states and 2342 transitions. [2025-02-08 07:52:55,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 07:52:55,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2342 transitions. [2025-02-08 07:52:55,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-02-08 07:52:55,220 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:52:55,221 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] [2025-02-08 07:52:55,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-08 07:52:55,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:55,422 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:52:55,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:52:55,423 INFO L85 PathProgramCache]: Analyzing trace with hash 76522654, now seen corresponding path program 2 times [2025-02-08 07:52:55,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:52:55,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687565138] [2025-02-08 07:52:55,424 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 07:52:55,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:52:55,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:52:55,426 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:52:55,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-08 07:52:55,633 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-02-08 07:53:08,278 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 07:53:08,278 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 07:53:08,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:08,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 07:53:08,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:08,396 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-08 07:53:08,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-08 07:53:08,407 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 07:53:08,580 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-08 07:53:08,581 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 07:53:08,622 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 07:53:08,642 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 07:53:08,642 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:53:08,715 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2025-02-08 07:53:08,715 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 07:53:08,723 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_955 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem32#1.base| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_955) |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 07:53:08,725 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:08,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687565138] [2025-02-08 07:53:08,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687565138] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 07:53:08,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1109729006] [2025-02-08 07:53:08,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 07:53:08,726 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-08 07:53:08,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-08 07:53:08,728 INFO L229 MonitoredProcess]: Starting monitored process 19 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 07:53:08,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2025-02-08 07:53:09,005 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-02-08 07:53:09,701 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 07:53:09,702 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 07:53:09,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:09,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 07:53:09,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:09,863 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 07:53:09,864 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:53:10,078 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 07:53:10,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1109729006] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:53:10,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 07:53:10,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 23 [2025-02-08 07:53:10,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958917173] [2025-02-08 07:53:10,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 07:53:10,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 07:53:10,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:10,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 07:53:10,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=467, Unknown=1, NotChecked=44, Total=600 [2025-02-08 07:53:10,081 INFO L87 Difference]: Start difference. First operand 2012 states and 2342 transitions. Second operand has 23 states, 22 states have (on average 6.2727272727272725) internal successors, (138), 22 states have internal predecessors, (138), 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) [2025-02-08 07:53:20,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:20,246 INFO L93 Difference]: Finished difference Result 2028 states and 2366 transitions. [2025-02-08 07:53:20,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-02-08 07:53:20,247 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.2727272727272725) internal successors, (138), 22 states have internal predecessors, (138), 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) Word has length 70 [2025-02-08 07:53:20,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:20,250 INFO L225 Difference]: With dead ends: 2028 [2025-02-08 07:53:20,250 INFO L226 Difference]: Without dead ends: 2024 [2025-02-08 07:53:20,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=407, Invalid=2046, Unknown=1, NotChecked=96, Total=2550 [2025-02-08 07:53:20,252 INFO L435 NwaCegarLoop]: 1064 mSDtfsCounter, 1175 mSDsluCounter, 14095 mSDsCounter, 0 mSdLazyCounter, 10227 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 15159 SdHoareTripleChecker+Invalid, 10283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 10227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:20,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 15159 Invalid, 10283 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 10227 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2025-02-08 07:53:20,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2025-02-08 07:53:20,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 2020. [2025-02-08 07:53:20,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2020 states, 1339 states have (on average 1.7348767737117252) internal successors, (2323), 2005 states have internal predecessors, (2323), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-02-08 07:53:20,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2352 transitions. [2025-02-08 07:53:20,273 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2352 transitions. Word has length 70 [2025-02-08 07:53:20,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:20,274 INFO L471 AbstractCegarLoop]: Abstraction has 2020 states and 2352 transitions. [2025-02-08 07:53:20,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.2727272727272725) internal successors, (138), 22 states have internal predecessors, (138), 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) [2025-02-08 07:53:20,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2352 transitions. [2025-02-08 07:53:20,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-08 07:53:20,276 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:20,276 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:20,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2025-02-08 07:53:20,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-02-08 07:53:20,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:20,677 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr817REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:53:20,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:20,677 INFO L85 PathProgramCache]: Analyzing trace with hash -154258049, now seen corresponding path program 1 times [2025-02-08 07:53:20,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:20,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1324583113] [2025-02-08 07:53:20,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 07:53:20,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:20,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:20,679 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:53:20,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-08 07:53:20,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-08 07:53:20,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-08 07:53:20,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 07:53:20,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 07:53:20,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 07:53:20,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 07:53:21,113 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:53:21,114 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 07:53:21,536 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 07:53:21,537 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 07:53:21,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324583113] [2025-02-08 07:53:21,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324583113] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 07:53:21,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 07:53:21,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2025-02-08 07:53:21,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452883912] [2025-02-08 07:53:21,537 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 07:53:21,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-02-08 07:53:21,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 07:53:21,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-02-08 07:53:21,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2025-02-08 07:53:21,538 INFO L87 Difference]: Start difference. First operand 2020 states and 2352 transitions. Second operand has 26 states, 26 states have (on average 3.3461538461538463) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 07:53:22,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 07:53:22,800 INFO L93 Difference]: Finished difference Result 2044 states and 2391 transitions. [2025-02-08 07:53:22,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-02-08 07:53:22,801 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3461538461538463) internal successors, (87), 26 states have internal predecessors, (87), 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 76 [2025-02-08 07:53:22,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 07:53:22,805 INFO L225 Difference]: With dead ends: 2044 [2025-02-08 07:53:22,805 INFO L226 Difference]: Without dead ends: 2038 [2025-02-08 07:53:22,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2025-02-08 07:53:22,806 INFO L435 NwaCegarLoop]: 1643 mSDtfsCounter, 22 mSDsluCounter, 18029 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 19672 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 07:53:22,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 19672 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 07:53:22,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2025-02-08 07:53:22,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 2038. [2025-02-08 07:53:22,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2038 states, 1357 states have (on average 1.728813559322034) internal successors, (2346), 2023 states have internal predecessors, (2346), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-02-08 07:53:22,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2038 states to 2038 states and 2375 transitions. [2025-02-08 07:53:22,831 INFO L78 Accepts]: Start accepts. Automaton has 2038 states and 2375 transitions. Word has length 76 [2025-02-08 07:53:22,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 07:53:22,831 INFO L471 AbstractCegarLoop]: Abstraction has 2038 states and 2375 transitions. [2025-02-08 07:53:22,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3461538461538463) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 07:53:22,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2038 states and 2375 transitions. [2025-02-08 07:53:22,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-02-08 07:53:22,832 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 07:53:22,832 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 07:53:22,847 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 07:53:23,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:23,033 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr817REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-08 07:53:23,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 07:53:23,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2028003135, now seen corresponding path program 2 times [2025-02-08 07:53:23,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 07:53:23,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [839587562] [2025-02-08 07:53:23,035 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 07:53:23,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 07:53:23,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 07:53:23,038 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 07:53:23,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-08 07:53:23,253 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes.