./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:19:05,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:19:05,849 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-08 22:19:05,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:19:05,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:19:05,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:19:05,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:19:05,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:19:05,878 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:19:05,878 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:19:05,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:19:05,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:19:05,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:19:05,879 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:19:05,880 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:19:05,880 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:19:05,880 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:19:05,880 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:19:05,881 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:19:05,881 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:19:05,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:19:05,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:19:05,881 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:19:05,881 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:19:05,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:19:05,881 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:19:05,881 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:19:05,881 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:19:05,881 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:19:05,881 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:19:05,882 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:19:05,882 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:19:05,882 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:19:05,882 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:19:05,882 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:19:05,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:19:05,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:19:05,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:19:05,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:19:05,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:19:05,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:19:05,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:19:05,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:19:05,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:19:05,884 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:19:05,884 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c [2025-03-08 22:19:06,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:19:06,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:19:06,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:19:06,131 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:19:06,132 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:19:06,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2025-03-08 22:19:07,325 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d7a294b/2f4ff5c7dce142669c8b4c1ded2a71da/FLAG7b2dd3872 [2025-03-08 22:19:07,648 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:19:07,649 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2025-03-08 22:19:07,667 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d7a294b/2f4ff5c7dce142669c8b4c1ded2a71da/FLAG7b2dd3872 [2025-03-08 22:19:07,896 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d7a294b/2f4ff5c7dce142669c8b4c1ded2a71da [2025-03-08 22:19:07,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:19:07,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:19:07,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:19:07,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:19:07,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:19:07,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:19:07" (1/1) ... [2025-03-08 22:19:07,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1925ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:07, skipping insertion in model container [2025-03-08 22:19:07,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:19:07" (1/1) ... [2025-03-08 22:19:07,943 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:19:08,257 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,284 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,285 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,288 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,293 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,315 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,315 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,316 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,316 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,318 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,319 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,320 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,320 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,322 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,323 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,324 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,325 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,329 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,329 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,331 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:08,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:19:08,348 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-03-08 22:19:08,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f93a86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:08, skipping insertion in model container [2025-03-08 22:19:08,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:19:08,349 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-08 22:19:08,350 INFO L158 Benchmark]: Toolchain (without parser) took 450.43ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 88.7MB in the end (delta: 21.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 22:19:08,350 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 22:19:08,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.86ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 88.7MB in the end (delta: 21.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 22:19:08,352 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.86ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 88.7MB in the end (delta: 21.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:19:09,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:19:10,049 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-08 22:19:10,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:19:10,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:19:10,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:19:10,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:19:10,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:19:10,080 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 22:19:10,080 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 22:19:10,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:19:10,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:19:10,081 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:19:10,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:19:10,081 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:19:10,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:19:10,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:19:10,081 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:19:10,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:19:10,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:19:10,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:19:10,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:19:10,082 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-08 22:19:10,082 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-08 22:19:10,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:19:10,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:19:10,082 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 22:19:10,082 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 22:19:10,082 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 22:19:10,082 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:19:10,083 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:19:10,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:19:10,083 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:19:10,083 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:19:10,083 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:19:10,083 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:19:10,083 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 22:19:10,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:19:10,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:19:10,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:19:10,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:19:10,084 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 22:19:10,084 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 22:19:10,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:19:10,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:19:10,084 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:19:10,084 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:19:10,084 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c [2025-03-08 22:19:10,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:19:10,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:19:10,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:19:10,346 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:19:10,347 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:19:10,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2025-03-08 22:19:11,588 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf866022/32164f3c80cb40a9b27bae1b52008017/FLAGc99b5414a [2025-03-08 22:19:11,806 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:19:11,807 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2025-03-08 22:19:11,824 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf866022/32164f3c80cb40a9b27bae1b52008017/FLAGc99b5414a [2025-03-08 22:19:11,834 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf866022/32164f3c80cb40a9b27bae1b52008017 [2025-03-08 22:19:11,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:19:11,837 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:19:11,837 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:19:11,837 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:19:11,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:19:11,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:19:11" (1/1) ... [2025-03-08 22:19:11,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318e020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:11, skipping insertion in model container [2025-03-08 22:19:11,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:19:11" (1/1) ... [2025-03-08 22:19:11,874 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:19:12,188 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,218 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,220 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,223 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,227 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,258 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,258 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,260 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,261 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,264 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,266 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,267 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,271 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,271 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,277 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,277 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,278 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,279 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,284 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:19:12,299 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-08 22:19:12,306 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:19:12,342 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,356 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,358 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,359 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,362 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,385 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,386 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,388 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,388 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,390 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,390 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,391 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,391 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,395 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,396 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,397 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,399 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,399 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,400 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,402 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-08 22:19:12,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:19:12,407 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:19:12,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:19:12,522 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:19:12,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12 WrapperNode [2025-03-08 22:19:12,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:19:12,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:19:12,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:19:12,524 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:19:12,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (1/1) ... [2025-03-08 22:19:12,563 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (1/1) ... [2025-03-08 22:19:12,605 INFO L138 Inliner]: procedures = 286, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1181 [2025-03-08 22:19:12,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:19:12,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:19:12,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:19:12,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:19:12,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (1/1) ... [2025-03-08 22:19:12,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (1/1) ... [2025-03-08 22:19:12,619 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (1/1) ... [2025-03-08 22:19:12,705 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 270, 34]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 57, 4]. [2025-03-08 22:19:12,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (1/1) ... [2025-03-08 22:19:12,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (1/1) ... [2025-03-08 22:19:12,731 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (1/1) ... [2025-03-08 22:19:12,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (1/1) ... [2025-03-08 22:19:12,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (1/1) ... [2025-03-08 22:19:12,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (1/1) ... [2025-03-08 22:19:12,756 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:19:12,757 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:19:12,757 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:19:12,757 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:19:12,758 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (1/1) ... [2025-03-08 22:19:12,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:19:12,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:12,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 22:19:12,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 22:19:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-08 22:19:12,820 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-08 22:19:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-08 22:19:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-08 22:19:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-08 22:19:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-08 22:19:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-08 22:19:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-08 22:19:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 22:19:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-08 22:19:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-08 22:19:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-08 22:19:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-03-08 22:19:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-03-08 22:19:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-03-08 22:19:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-03-08 22:19:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-03-08 22:19:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-03-08 22:19:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 22:19:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 22:19:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 22:19:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:19:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-03-08 22:19:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-03-08 22:19:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 22:19:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 22:19:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 22:19:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 22:19:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-03-08 22:19:12,825 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-03-08 22:19:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:19:12,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:19:13,052 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:19:13,053 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:19:13,112 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-03-08 22:19:20,113 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-03-08 22:19:20,113 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-03-08 22:19:20,113 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L987: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-08 22:19:20,157 INFO L? ?]: Removed 169 outVars from TransFormulas that were not future-live. [2025-03-08 22:19:20,157 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:19:20,171 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:19:20,171 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:19:20,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:19:20 BoogieIcfgContainer [2025-03-08 22:19:20,171 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:19:20,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:19:20,173 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:19:20,178 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:19:20,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:19:11" (1/3) ... [2025-03-08 22:19:20,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3babfec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:19:20, skipping insertion in model container [2025-03-08 22:19:20,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:19:12" (2/3) ... [2025-03-08 22:19:20,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3babfec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:19:20, skipping insertion in model container [2025-03-08 22:19:20,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:19:20" (3/3) ... [2025-03-08 22:19:20,180 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-2.i [2025-03-08 22:19:20,190 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:19:20,191 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test6-2.i that has 6 procedures, 262 locations, 1 initial locations, 39 loop locations, and 2 error locations. [2025-03-08 22:19:20,229 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:19:20,239 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;@13f80f0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:19:20,240 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 22:19:20,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 262 states, 235 states have (on average 1.6) internal successors, (376), 240 states have internal predecessors, (376), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-08 22:19:20,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-08 22:19:20,249 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:20,249 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:20,250 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:20,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:20,253 INFO L85 PathProgramCache]: Analyzing trace with hash -596919528, now seen corresponding path program 1 times [2025-03-08 22:19:20,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:19:20,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [366026337] [2025-03-08 22:19:20,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:20,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:20,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:20,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:20,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 22:19:20,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-08 22:19:20,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-08 22:19:20,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:20,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:20,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 22:19:20,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:19:20,441 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:19:20,441 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:19:20,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366026337] [2025-03-08 22:19:20,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366026337] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:20,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:20,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 22:19:20,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348870540] [2025-03-08 22:19:20,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:20,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 22:19:20,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:19:20,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 22:19:20,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:19:20,466 INFO L87 Difference]: Start difference. First operand has 262 states, 235 states have (on average 1.6) internal successors, (376), 240 states have internal predecessors, (376), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:20,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:20,494 INFO L93 Difference]: Finished difference Result 257 states and 335 transitions. [2025-03-08 22:19:20,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 22:19:20,496 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-08 22:19:20,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:20,502 INFO L225 Difference]: With dead ends: 257 [2025-03-08 22:19:20,502 INFO L226 Difference]: Without dead ends: 255 [2025-03-08 22:19:20,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:19:20,508 INFO L435 NwaCegarLoop]: 335 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, 335 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 [2025-03-08 22:19:20,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 22:19:20,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2025-03-08 22:19:20,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2025-03-08 22:19:20,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 230 states have (on average 1.3) internal successors, (299), 235 states have internal predecessors, (299), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-08 22:19:20,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 333 transitions. [2025-03-08 22:19:20,547 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 333 transitions. Word has length 10 [2025-03-08 22:19:20,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:20,548 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 333 transitions. [2025-03-08 22:19:20,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:20,548 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 333 transitions. [2025-03-08 22:19:20,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-08 22:19:20,548 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:20,548 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:20,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 22:19:20,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:20,751 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:20,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:20,752 INFO L85 PathProgramCache]: Analyzing trace with hash 739244149, now seen corresponding path program 1 times [2025-03-08 22:19:20,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:19:20,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [402723896] [2025-03-08 22:19:20,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:20,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:20,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:20,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:20,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 22:19:20,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-08 22:19:20,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-08 22:19:20,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:20,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:20,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 22:19:20,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:19:20,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:19:20,990 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:19:20,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402723896] [2025-03-08 22:19:20,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402723896] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:20,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:20,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:19:20,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681477460] [2025-03-08 22:19:20,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:20,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:19:20,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:19:20,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:19:20,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:19:20,992 INFO L87 Difference]: Start difference. First operand 255 states and 333 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:24,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 22:19:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:26,695 INFO L93 Difference]: Finished difference Result 405 states and 532 transitions. [2025-03-08 22:19:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:19:26,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-03-08 22:19:26,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:26,698 INFO L225 Difference]: With dead ends: 405 [2025-03-08 22:19:26,698 INFO L226 Difference]: Without dead ends: 405 [2025-03-08 22:19:26,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:19:26,699 INFO L435 NwaCegarLoop]: 346 mSDtfsCounter, 180 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:26,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 950 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2025-03-08 22:19:26,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2025-03-08 22:19:26,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 370. [2025-03-08 22:19:26,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 342 states have (on average 1.304093567251462) internal successors, (446), 347 states have internal predecessors, (446), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-08 22:19:26,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 486 transitions. [2025-03-08 22:19:26,728 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 486 transitions. Word has length 12 [2025-03-08 22:19:26,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:26,729 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 486 transitions. [2025-03-08 22:19:26,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:26,729 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 486 transitions. [2025-03-08 22:19:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-08 22:19:26,729 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:26,729 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:26,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 22:19:26,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:26,930 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:26,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:26,931 INFO L85 PathProgramCache]: Analyzing trace with hash -555946487, now seen corresponding path program 1 times [2025-03-08 22:19:26,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:19:26,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962121643] [2025-03-08 22:19:26,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:26,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:26,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:26,933 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:26,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 22:19:27,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-08 22:19:27,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-08 22:19:27,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:27,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:27,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 22:19:27,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:27,100 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 22:19:27,100 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 22:19:27,101 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 22:19:27,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-03-08 22:19:27,165 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-08 22:19:27,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-03-08 22:19:27,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:19:27,179 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:19:27,179 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:19:27,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962121643] [2025-03-08 22:19:27,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962121643] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:27,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:27,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:19:27,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654209154] [2025-03-08 22:19:27,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:27,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:19:27,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:19:27,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:19:27,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:19:27,180 INFO L87 Difference]: Start difference. First operand 370 states and 486 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:27,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:27,583 INFO L93 Difference]: Finished difference Result 580 states and 769 transitions. [2025-03-08 22:19:27,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:19:27,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-03-08 22:19:27,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:27,586 INFO L225 Difference]: With dead ends: 580 [2025-03-08 22:19:27,586 INFO L226 Difference]: Without dead ends: 580 [2025-03-08 22:19:27,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:19:27,587 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 267 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:27,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 1025 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 22:19:27,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-03-08 22:19:27,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 369. [2025-03-08 22:19:27,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 341 states have (on average 1.3020527859237536) internal successors, (444), 346 states have internal predecessors, (444), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-08 22:19:27,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 484 transitions. [2025-03-08 22:19:27,598 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 484 transitions. Word has length 15 [2025-03-08 22:19:27,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:27,598 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 484 transitions. [2025-03-08 22:19:27,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:27,598 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 484 transitions. [2025-03-08 22:19:27,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-08 22:19:27,599 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:27,599 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] [2025-03-08 22:19:27,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 22:19:27,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:27,800 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:27,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:27,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1096500670, now seen corresponding path program 1 times [2025-03-08 22:19:27,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:19:27,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445985650] [2025-03-08 22:19:27,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:27,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:27,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:27,802 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:27,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 22:19:27,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-08 22:19:28,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-08 22:19:28,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:28,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:28,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:19:28,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:19:28,046 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:19:28,046 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:19:28,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445985650] [2025-03-08 22:19:28,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445985650] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:28,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:28,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:19:28,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791631303] [2025-03-08 22:19:28,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:28,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:19:28,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:19:28,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:19:28,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:19:28,046 INFO L87 Difference]: Start difference. First operand 369 states and 484 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:28,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:28,138 INFO L93 Difference]: Finished difference Result 409 states and 524 transitions. [2025-03-08 22:19:28,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:19:28,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-08 22:19:28,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:28,140 INFO L225 Difference]: With dead ends: 409 [2025-03-08 22:19:28,140 INFO L226 Difference]: Without dead ends: 409 [2025-03-08 22:19:28,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:19:28,140 INFO L435 NwaCegarLoop]: 313 mSDtfsCounter, 8 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:28,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 611 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:19:28,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2025-03-08 22:19:28,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2025-03-08 22:19:28,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 381 states have (on average 1.2703412073490814) internal successors, (484), 386 states have internal predecessors, (484), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-08 22:19:28,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 524 transitions. [2025-03-08 22:19:28,150 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 524 transitions. Word has length 48 [2025-03-08 22:19:28,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:28,150 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 524 transitions. [2025-03-08 22:19:28,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:28,150 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 524 transitions. [2025-03-08 22:19:28,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-08 22:19:28,151 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:28,151 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] [2025-03-08 22:19:28,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 22:19:28,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:28,352 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:28,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:28,352 INFO L85 PathProgramCache]: Analyzing trace with hash 71008671, now seen corresponding path program 1 times [2025-03-08 22:19:28,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:19:28,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509281381] [2025-03-08 22:19:28,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:28,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:28,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:28,355 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:28,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 22:19:28,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-08 22:19:28,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-08 22:19:28,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:28,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:28,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 22:19:28,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:28,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:19:28,640 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:19:28,640 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:19:28,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509281381] [2025-03-08 22:19:28,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509281381] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:28,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:28,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:19:28,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301460822] [2025-03-08 22:19:28,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:28,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:19:28,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:19:28,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:19:28,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:19:28,641 INFO L87 Difference]: Start difference. First operand 409 states and 524 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:28,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:28,722 INFO L93 Difference]: Finished difference Result 375 states and 468 transitions. [2025-03-08 22:19:28,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 22:19:28,722 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-08 22:19:28,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:28,723 INFO L225 Difference]: With dead ends: 375 [2025-03-08 22:19:28,723 INFO L226 Difference]: Without dead ends: 375 [2025-03-08 22:19:28,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:19:28,724 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 32 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:28,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 889 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:19:28,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-03-08 22:19:28,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2025-03-08 22:19:28,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 347 states have (on average 1.2334293948126802) internal successors, (428), 352 states have internal predecessors, (428), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-08 22:19:28,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 468 transitions. [2025-03-08 22:19:28,731 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 468 transitions. Word has length 48 [2025-03-08 22:19:28,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:28,732 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 468 transitions. [2025-03-08 22:19:28,732 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:28,732 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 468 transitions. [2025-03-08 22:19:28,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-08 22:19:28,735 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:28,735 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] [2025-03-08 22:19:28,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-08 22:19:28,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:28,939 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:28,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:28,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1837866824, now seen corresponding path program 1 times [2025-03-08 22:19:28,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:19:28,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1561263879] [2025-03-08 22:19:28,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:28,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:28,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:28,942 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:28,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 22:19:29,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-08 22:19:29,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-08 22:19:29,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:29,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:29,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-08 22:19:29,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:29,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:19:29,283 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:19:29,283 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:19:29,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561263879] [2025-03-08 22:19:29,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561263879] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:29,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:29,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 22:19:29,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761708657] [2025-03-08 22:19:29,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:29,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 22:19:29,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:19:29,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 22:19:29,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-08 22:19:29,284 INFO L87 Difference]: Start difference. First operand 375 states and 468 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:29,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:29,394 INFO L93 Difference]: Finished difference Result 384 states and 478 transitions. [2025-03-08 22:19:29,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 22:19:29,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-08 22:19:29,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:29,397 INFO L225 Difference]: With dead ends: 384 [2025-03-08 22:19:29,397 INFO L226 Difference]: Without dead ends: 384 [2025-03-08 22:19:29,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-08 22:19:29,397 INFO L435 NwaCegarLoop]: 316 mSDtfsCounter, 8 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:29,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2191 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:19:29,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2025-03-08 22:19:29,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 383. [2025-03-08 22:19:29,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 352 states have (on average 1.2301136363636365) internal successors, (433), 358 states have internal predecessors, (433), 24 states have call successors, (24), 7 states have call predecessors, (24), 5 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-08 22:19:29,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 477 transitions. [2025-03-08 22:19:29,405 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 477 transitions. Word has length 48 [2025-03-08 22:19:29,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:29,407 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 477 transitions. [2025-03-08 22:19:29,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:19:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 477 transitions. [2025-03-08 22:19:29,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-08 22:19:29,408 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:29,409 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:29,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-08 22:19:29,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:29,610 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:29,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:29,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1271123850, now seen corresponding path program 1 times [2025-03-08 22:19:29,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:19:29,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371048879] [2025-03-08 22:19:29,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:29,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:29,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:29,614 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:29,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-08 22:19:29,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 22:19:29,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 22:19:29,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:29,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:29,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 22:19:29,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:29,917 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:19:29,917 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:19:29,917 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:19:29,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371048879] [2025-03-08 22:19:29,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371048879] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:29,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:29,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:19:29,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052398168] [2025-03-08 22:19:29,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:29,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:19:29,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:19:29,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:19:29,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:19:29,919 INFO L87 Difference]: Start difference. First operand 383 states and 477 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-08 22:19:30,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:30,136 INFO L93 Difference]: Finished difference Result 1021 states and 1297 transitions. [2025-03-08 22:19:30,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:19:30,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 68 [2025-03-08 22:19:30,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:30,141 INFO L225 Difference]: With dead ends: 1021 [2025-03-08 22:19:30,142 INFO L226 Difference]: Without dead ends: 1021 [2025-03-08 22:19:30,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:19:30,143 INFO L435 NwaCegarLoop]: 700 mSDtfsCounter, 586 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:30,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1646 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 22:19:30,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2025-03-08 22:19:30,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 939. [2025-03-08 22:19:30,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 877 states have (on average 1.2508551881413912) internal successors, (1097), 887 states have internal predecessors, (1097), 48 states have call successors, (48), 13 states have call predecessors, (48), 12 states have return successors, (47), 38 states have call predecessors, (47), 44 states have call successors, (47) [2025-03-08 22:19:30,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1192 transitions. [2025-03-08 22:19:30,163 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1192 transitions. Word has length 68 [2025-03-08 22:19:30,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:30,164 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1192 transitions. [2025-03-08 22:19:30,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-08 22:19:30,164 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1192 transitions. [2025-03-08 22:19:30,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-03-08 22:19:30,165 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:30,165 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:30,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-08 22:19:30,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:30,369 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:30,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:30,369 INFO L85 PathProgramCache]: Analyzing trace with hash -548066280, now seen corresponding path program 1 times [2025-03-08 22:19:30,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:19:30,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1947384770] [2025-03-08 22:19:30,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:30,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:30,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:30,372 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:30,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-08 22:19:30,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-08 22:19:30,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-08 22:19:30,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:30,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:30,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 22:19:30,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:30,749 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-08 22:19:30,749 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:19:30,749 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:19:30,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947384770] [2025-03-08 22:19:30,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947384770] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:30,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:30,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:19:30,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196993252] [2025-03-08 22:19:30,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:30,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:19:30,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:19:30,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:19:30,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:19:30,750 INFO L87 Difference]: Start difference. First operand 939 states and 1192 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-08 22:19:30,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:30,788 INFO L93 Difference]: Finished difference Result 951 states and 1207 transitions. [2025-03-08 22:19:30,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:19:30,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 94 [2025-03-08 22:19:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:30,792 INFO L225 Difference]: With dead ends: 951 [2025-03-08 22:19:30,792 INFO L226 Difference]: Without dead ends: 951 [2025-03-08 22:19:30,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:19:30,793 INFO L435 NwaCegarLoop]: 319 mSDtfsCounter, 0 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:30,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 949 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 22:19:30,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2025-03-08 22:19:30,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 951. [2025-03-08 22:19:30,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 886 states have (on average 1.2516930022573363) internal successors, (1109), 899 states have internal predecessors, (1109), 48 states have call successors, (48), 13 states have call predecessors, (48), 15 states have return successors, (50), 38 states have call predecessors, (50), 44 states have call successors, (50) [2025-03-08 22:19:30,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1207 transitions. [2025-03-08 22:19:30,810 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1207 transitions. Word has length 94 [2025-03-08 22:19:30,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:30,810 INFO L471 AbstractCegarLoop]: Abstraction has 951 states and 1207 transitions. [2025-03-08 22:19:30,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-08 22:19:30,811 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1207 transitions. [2025-03-08 22:19:30,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-08 22:19:30,811 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:30,812 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:30,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-08 22:19:31,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:31,012 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:31,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:31,013 INFO L85 PathProgramCache]: Analyzing trace with hash -993190908, now seen corresponding path program 1 times [2025-03-08 22:19:31,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:19:31,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1892332226] [2025-03-08 22:19:31,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:31,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:31,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:31,015 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:31,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-08 22:19:31,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-08 22:19:31,349 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-08 22:19:31,349 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:31,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:31,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 22:19:31,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-08 22:19:31,411 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:19:31,532 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-08 22:19:31,532 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:19:31,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892332226] [2025-03-08 22:19:31,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892332226] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:19:31,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 22:19:31,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-08 22:19:31,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937667434] [2025-03-08 22:19:31,533 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 22:19:31,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 22:19:31,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:19:31,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 22:19:31,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-08 22:19:31,533 INFO L87 Difference]: Start difference. First operand 951 states and 1207 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 22:19:31,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:31,662 INFO L93 Difference]: Finished difference Result 990 states and 1264 transitions. [2025-03-08 22:19:31,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 22:19:31,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 96 [2025-03-08 22:19:31,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:31,666 INFO L225 Difference]: With dead ends: 990 [2025-03-08 22:19:31,666 INFO L226 Difference]: Without dead ends: 990 [2025-03-08 22:19:31,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-08 22:19:31,667 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 5 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:31,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1260 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:19:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2025-03-08 22:19:31,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 981. [2025-03-08 22:19:31,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 913 states have (on average 1.2639649507119386) internal successors, (1154), 926 states have internal predecessors, (1154), 48 states have call successors, (48), 16 states have call predecessors, (48), 18 states have return successors, (53), 38 states have call predecessors, (53), 44 states have call successors, (53) [2025-03-08 22:19:31,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1255 transitions. [2025-03-08 22:19:31,684 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1255 transitions. Word has length 96 [2025-03-08 22:19:31,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:31,684 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1255 transitions. [2025-03-08 22:19:31,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 22:19:31,684 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1255 transitions. [2025-03-08 22:19:31,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-08 22:19:31,685 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:31,685 INFO L218 NwaCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:31,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-08 22:19:31,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:31,889 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:31,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:31,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1943315768, now seen corresponding path program 2 times [2025-03-08 22:19:31,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:19:31,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016062205] [2025-03-08 22:19:31,890 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:19:31,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:31,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:31,892 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:31,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-08 22:19:32,105 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 100 statements into 2 equivalence classes. [2025-03-08 22:19:56,281 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 100 of 100 statements. [2025-03-08 22:19:56,282 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 22:19:56,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:56,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-08 22:19:56,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:56,597 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-08 22:19:56,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:19:56,814 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-08 22:19:56,814 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:19:56,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016062205] [2025-03-08 22:19:56,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016062205] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:19:56,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 22:19:56,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2025-03-08 22:19:56,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131720099] [2025-03-08 22:19:56,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 22:19:56,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-08 22:19:56,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:19:56,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-08 22:19:56,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-08 22:19:56,816 INFO L87 Difference]: Start difference. First operand 981 states and 1255 transitions. Second operand has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-03-08 22:19:58,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:58,661 INFO L93 Difference]: Finished difference Result 3795 states and 4890 transitions. [2025-03-08 22:19:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-08 22:19:58,661 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 100 [2025-03-08 22:19:58,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:58,673 INFO L225 Difference]: With dead ends: 3795 [2025-03-08 22:19:58,673 INFO L226 Difference]: Without dead ends: 3795 [2025-03-08 22:19:58,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2025-03-08 22:19:58,674 INFO L435 NwaCegarLoop]: 1126 mSDtfsCounter, 5626 mSDsluCounter, 6411 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5657 SdHoareTripleChecker+Valid, 7537 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:58,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5657 Valid, 7537 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-08 22:19:58,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2025-03-08 22:19:58,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 2836. [2025-03-08 22:19:58,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2836 states, 2662 states have (on average 1.2697220135236664) internal successors, (3380), 2692 states have internal predecessors, (3380), 130 states have call successors, (130), 39 states have call predecessors, (130), 42 states have return successors, (141), 104 states have call predecessors, (141), 126 states have call successors, (141) [2025-03-08 22:19:58,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 3651 transitions. [2025-03-08 22:19:58,732 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 3651 transitions. Word has length 100 [2025-03-08 22:19:58,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:58,733 INFO L471 AbstractCegarLoop]: Abstraction has 2836 states and 3651 transitions. [2025-03-08 22:19:58,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-03-08 22:19:58,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 3651 transitions. [2025-03-08 22:19:58,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-08 22:19:58,734 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:58,734 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:58,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-08 22:19:58,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:58,935 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:19:58,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:19:58,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2098657365, now seen corresponding path program 1 times [2025-03-08 22:19:58,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:19:58,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643506055] [2025-03-08 22:19:58,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:19:58,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:19:58,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:19:58,937 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:19:58,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-08 22:19:59,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 22:19:59,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 22:19:59,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:19:59,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:19:59,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 22:19:59,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:19:59,355 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 22:19:59,355 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 22:19:59,355 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-08 22:19:59,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-03-08 22:19:59,387 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-08 22:19:59,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-03-08 22:19:59,396 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-08 22:19:59,396 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 22:19:59,396 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:19:59,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643506055] [2025-03-08 22:19:59,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643506055] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:19:59,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:19:59,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 22:19:59,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161172043] [2025-03-08 22:19:59,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:19:59,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 22:19:59,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:19:59,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 22:19:59,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 22:19:59,397 INFO L87 Difference]: Start difference. First operand 2836 states and 3651 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-08 22:19:59,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:19:59,741 INFO L93 Difference]: Finished difference Result 3828 states and 4970 transitions. [2025-03-08 22:19:59,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 22:19:59,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 108 [2025-03-08 22:19:59,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:19:59,750 INFO L225 Difference]: With dead ends: 3828 [2025-03-08 22:19:59,751 INFO L226 Difference]: Without dead ends: 3828 [2025-03-08 22:19:59,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 22:19:59,752 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 210 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 22:19:59,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 892 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 22:19:59,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3828 states. [2025-03-08 22:19:59,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3828 to 2852. [2025-03-08 22:19:59,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2678 states have (on average 1.2681105302464526) internal successors, (3396), 2708 states have internal predecessors, (3396), 130 states have call successors, (130), 39 states have call predecessors, (130), 42 states have return successors, (141), 104 states have call predecessors, (141), 126 states have call successors, (141) [2025-03-08 22:19:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3667 transitions. [2025-03-08 22:19:59,809 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3667 transitions. Word has length 108 [2025-03-08 22:19:59,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:19:59,809 INFO L471 AbstractCegarLoop]: Abstraction has 2852 states and 3667 transitions. [2025-03-08 22:19:59,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-08 22:19:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3667 transitions. [2025-03-08 22:19:59,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-08 22:19:59,810 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:19:59,810 INFO L218 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:19:59,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-08 22:20:00,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:00,015 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:00,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:00,015 INFO L85 PathProgramCache]: Analyzing trace with hash 417400431, now seen corresponding path program 1 times [2025-03-08 22:20:00,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:00,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1179616508] [2025-03-08 22:20:00,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:20:00,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:00,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:00,018 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:20:00,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-08 22:20:00,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-08 22:20:00,410 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-08 22:20:00,410 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:20:00,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:20:00,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 22:20:00,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 22:20:00,494 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 22:20:00,494 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 22:20:00,640 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-08 22:20:00,640 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 22:20:00,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179616508] [2025-03-08 22:20:00,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179616508] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 22:20:00,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 22:20:00,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-08 22:20:00,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108630252] [2025-03-08 22:20:00,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 22:20:00,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 22:20:00,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 22:20:00,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 22:20:00,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-08 22:20:00,642 INFO L87 Difference]: Start difference. First operand 2852 states and 3667 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 22:20:00,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 22:20:00,885 INFO L93 Difference]: Finished difference Result 2912 states and 3739 transitions. [2025-03-08 22:20:00,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-08 22:20:00,886 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2025-03-08 22:20:00,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 22:20:00,892 INFO L225 Difference]: With dead ends: 2912 [2025-03-08 22:20:00,892 INFO L226 Difference]: Without dead ends: 2894 [2025-03-08 22:20:00,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-03-08 22:20:00,893 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 5 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 22:20:00,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2518 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 22:20:00,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2025-03-08 22:20:00,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2876. [2025-03-08 22:20:00,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2702 states have (on average 1.2701702442635086) internal successors, (3432), 2732 states have internal predecessors, (3432), 130 states have call successors, (130), 39 states have call predecessors, (130), 42 states have return successors, (135), 104 states have call predecessors, (135), 126 states have call successors, (135) [2025-03-08 22:20:00,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 3697 transitions. [2025-03-08 22:20:00,937 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 3697 transitions. Word has length 115 [2025-03-08 22:20:00,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 22:20:00,937 INFO L471 AbstractCegarLoop]: Abstraction has 2876 states and 3697 transitions. [2025-03-08 22:20:00,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-08 22:20:00,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 3697 transitions. [2025-03-08 22:20:00,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-03-08 22:20:00,938 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 22:20:00,938 INFO L218 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:20:00,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-08 22:20:01,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:01,139 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-08 22:20:01,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:20:01,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1025939375, now seen corresponding path program 2 times [2025-03-08 22:20:01,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 22:20:01,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [480818832] [2025-03-08 22:20:01,140 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 22:20:01,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 22:20:01,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:20:01,143 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 22:20:01,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-08 22:20:01,411 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes.