./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 798a7b37 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_SAX_test1-2.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 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:18:55,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:18:55,850 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-04 07:18:55,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:18:55,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:18:55,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:18:55,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:18:55,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:18:55,872 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 07:18:55,873 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 07:18:55,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:18:55,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:18:55,874 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:18:55,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:18:55,874 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:18:55,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:18:55,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:18:55,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 07:18:55,876 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:18:55,876 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:18:55,876 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:18:55,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:18:55,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 07:18:55,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:18:55,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:18:55,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:18:55,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:18:55,877 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 07:18:55,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 07:18:55,877 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:18:55,877 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:18:55,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:18:55,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:18:55,877 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 -> 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 [2025-03-04 07:18:56,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:18:56,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:18:56,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:18:56,099 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:18:56,099 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:18:56,101 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2025-03-04 07:18:57,269 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32b9ec796/aabeba6a15e14b06901dff190b48f6b0/FLAGdb258e03c [2025-03-04 07:18:57,593 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:18:57,593 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2025-03-04 07:18:57,610 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32b9ec796/aabeba6a15e14b06901dff190b48f6b0/FLAGdb258e03c [2025-03-04 07:18:57,625 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32b9ec796/aabeba6a15e14b06901dff190b48f6b0 [2025-03-04 07:18:57,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:18:57,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:18:57,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:18:57,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:18:57,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:18:57,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:18:57" (1/1) ... [2025-03-04 07:18:57,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f32dad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:18:57, skipping insertion in model container [2025-03-04 07:18:57,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:18:57" (1/1) ... [2025-03-04 07:18:57,670 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:18:57,959 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:18:57,985 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:18:57,992 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:18:57,994 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:18:57,997 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:18:58,006 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:18:58,007 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:18:58,009 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:18:58,010 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:18:58,011 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:18:58,011 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:18:58,014 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:18:58,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:18:58,029 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) [2025-03-04 07:18:58,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@661e37ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:18:58, skipping insertion in model container [2025-03-04 07:18:58,030 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:18:58,030 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-04 07:18:58,033 INFO L158 Benchmark]: Toolchain (without parser) took 402.03ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 91.3MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 07:18:58,035 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 07:18:58,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.15ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 91.3MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 07:18:58,036 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.15ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 91.3MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 764]: 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_SAX_test1-2.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 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:18:59,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:18:59,714 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-04 07:18:59,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:18:59,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:18:59,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:18:59,741 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:18:59,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:18:59,742 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 07:18:59,742 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 07:18:59,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:18:59,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:18:59,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:18:59,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:18:59,743 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:18:59,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:18:59,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 07:18:59,744 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:18:59,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:18:59,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:18:59,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:18:59,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 07:18:59,744 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 07:18:59,744 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 07:18:59,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:18:59,744 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 07:18:59,745 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 07:18:59,745 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 07:18:59,745 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 07:18:59,745 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:18:59,745 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:18:59,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 07:18:59,745 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:18:59,745 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:18:59,746 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:18:59,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:18:59,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 07:18:59,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:18:59,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:18:59,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:18:59,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:18:59,746 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 07:18:59,746 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 07:18:59,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:18:59,747 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:18:59,747 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:18:59,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:18:59,747 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 -> 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 [2025-03-04 07:18:59,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:18:59,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:18:59,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:18:59,973 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:18:59,973 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:18:59,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2025-03-04 07:19:01,080 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eec7694b/75ee64ee9196440c9e40302e7bcba884/FLAG78a8a14ac [2025-03-04 07:19:01,353 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:19:01,355 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2025-03-04 07:19:01,368 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eec7694b/75ee64ee9196440c9e40302e7bcba884/FLAG78a8a14ac [2025-03-04 07:19:01,651 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eec7694b/75ee64ee9196440c9e40302e7bcba884 [2025-03-04 07:19:01,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:19:01,654 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:19:01,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:19:01,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:19:01,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:19:01,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:19:01" (1/1) ... [2025-03-04 07:19:01,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31039a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:01, skipping insertion in model container [2025-03-04 07:19:01,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:19:01" (1/1) ... [2025-03-04 07:19:01,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:19:01,907 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:01,939 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:01,942 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:01,945 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:01,951 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:01,960 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:01,961 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:01,962 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:01,963 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:01,964 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:01,964 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:01,967 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:01,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:19:01,983 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-04 07:19:01,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:19:02,023 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:02,038 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:02,042 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:02,045 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:02,054 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:02,068 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:02,068 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:02,069 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:02,070 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:02,070 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:02,074 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:02,077 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:19:02,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:19:02,084 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 07:19:02,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:19:02,192 INFO L204 MainTranslator]: Completed translation [2025-03-04 07:19:02,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02 WrapperNode [2025-03-04 07:19:02,193 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:19:02,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 07:19:02,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 07:19:02,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 07:19:02,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (1/1) ... [2025-03-04 07:19:02,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (1/1) ... [2025-03-04 07:19:02,245 INFO L138 Inliner]: procedures = 179, calls = 231, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 759 [2025-03-04 07:19:02,246 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 07:19:02,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 07:19:02,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 07:19:02,247 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 07:19:02,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (1/1) ... [2025-03-04 07:19:02,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (1/1) ... [2025-03-04 07:19:02,261 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (1/1) ... [2025-03-04 07:19:02,305 INFO L175 MemorySlicer]: Split 206 memory accesses to 2 slices as follows [2, 204]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 50 writes are split as follows [0, 50]. [2025-03-04 07:19:02,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (1/1) ... [2025-03-04 07:19:02,306 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (1/1) ... [2025-03-04 07:19:02,337 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (1/1) ... [2025-03-04 07:19:02,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (1/1) ... [2025-03-04 07:19:02,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (1/1) ... [2025-03-04 07:19:02,350 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (1/1) ... [2025-03-04 07:19:02,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 07:19:02,358 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 07:19:02,358 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 07:19:02,358 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 07:19:02,359 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (1/1) ... [2025-03-04 07:19:02,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:19:02,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:19:02,386 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) [2025-03-04 07:19:02,390 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 [2025-03-04 07:19:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-04 07:19:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-04 07:19:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-04 07:19:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-04 07:19:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 07:19:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 07:19:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-04 07:19:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-04 07:19:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-04 07:19:02,411 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-04 07:19:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 07:19:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 07:19:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 07:19:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 07:19:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 07:19:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 07:19:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 07:19:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-04 07:19:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-04 07:19:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-04 07:19:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-04 07:19:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 07:19:02,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 07:19:02,577 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 07:19:02,579 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 07:19:08,689 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2025-03-04 07:19:08,689 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 07:19:08,700 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 07:19:08,700 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 07:19:08,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:19:08 BoogieIcfgContainer [2025-03-04 07:19:08,700 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 07:19:08,702 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 07:19:08,702 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 07:19:08,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 07:19:08,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 07:19:01" (1/3) ... [2025-03-04 07:19:08,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf38343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:19:08, skipping insertion in model container [2025-03-04 07:19:08,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:19:02" (2/3) ... [2025-03-04 07:19:08,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf38343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:19:08, skipping insertion in model container [2025-03-04 07:19:08,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:19:08" (3/3) ... [2025-03-04 07:19:08,709 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-2.i [2025-03-04 07:19:08,718 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 07:19:08,719 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test1-2.i that has 4 procedures, 160 locations, 1 initial locations, 24 loop locations, and 2 error locations. [2025-03-04 07:19:08,752 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 07:19:08,762 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;@6dd81980, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 07:19:08,763 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-04 07:19:08,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 138 states have (on average 1.6521739130434783) internal successors, (228), 150 states have internal predecessors, (228), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 07:19:08,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 07:19:08,771 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:19:08,772 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:19:08,773 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:19:08,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:19:08,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2073921407, now seen corresponding path program 1 times [2025-03-04 07:19:08,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:19:08,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [281071685] [2025-03-04 07:19:08,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:19:08,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:19:08,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:19:08,787 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) [2025-03-04 07:19:08,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 07:19:08,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 07:19:08,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 07:19:08,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:19:08,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:19:08,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 07:19:08,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:19:08,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:19:08,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:19:08,973 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:19:08,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281071685] [2025-03-04 07:19:08,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281071685] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:19:08,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:19:08,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 07:19:08,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690233892] [2025-03-04 07:19:08,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:19:08,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:19:08,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:19:08,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:19:08,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:19:08,992 INFO L87 Difference]: Start difference. First operand has 156 states, 138 states have (on average 1.6521739130434783) internal successors, (228), 150 states have internal predecessors, (228), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:19:09,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:19:09,542 INFO L93 Difference]: Finished difference Result 246 states and 347 transitions. [2025-03-04 07:19:09,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:19:09,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-04 07:19:09,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:19:09,555 INFO L225 Difference]: With dead ends: 246 [2025-03-04 07:19:09,555 INFO L226 Difference]: Without dead ends: 244 [2025-03-04 07:19:09,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:19:09,558 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 109 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 07:19:09,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 390 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 07:19:09,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-03-04 07:19:09,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 215. [2025-03-04 07:19:09,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 188 states have (on average 1.3829787234042554) internal successors, (260), 209 states have internal predecessors, (260), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 5 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 07:19:09,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 306 transitions. [2025-03-04 07:19:09,599 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 306 transitions. Word has length 8 [2025-03-04 07:19:09,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:19:09,599 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 306 transitions. [2025-03-04 07:19:09,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:19:09,600 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 306 transitions. [2025-03-04 07:19:09,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 07:19:09,600 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:19:09,600 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:19:09,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 07:19:09,801 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 [2025-03-04 07:19:09,801 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:19:09,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:19:09,802 INFO L85 PathProgramCache]: Analyzing trace with hash 2073951198, now seen corresponding path program 1 times [2025-03-04 07:19:09,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:19:09,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [555360057] [2025-03-04 07:19:09,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:19:09,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:19:09,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:19:09,804 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) [2025-03-04 07:19:09,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 07:19:09,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 07:19:09,894 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 07:19:09,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:19:09,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:19:09,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 07:19:09,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:19:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:19:09,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:19:09,922 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:19:09,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555360057] [2025-03-04 07:19:09,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555360057] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:19:09,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:19:09,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:19:09,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711443648] [2025-03-04 07:19:09,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:19:09,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:19:09,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:19:09,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:19:09,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:19:09,924 INFO L87 Difference]: Start difference. First operand 215 states and 306 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:19:13,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 07:19:15,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 07:19:15,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:19:15,193 INFO L93 Difference]: Finished difference Result 242 states and 341 transitions. [2025-03-04 07:19:15,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:19:15,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-04 07:19:15,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:19:15,202 INFO L225 Difference]: With dead ends: 242 [2025-03-04 07:19:15,202 INFO L226 Difference]: Without dead ends: 241 [2025-03-04 07:19:15,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:19:15,202 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 54 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2025-03-04 07:19:15,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 400 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2025-03-04 07:19:15,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2025-03-04 07:19:15,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 217. [2025-03-04 07:19:15,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 190 states have (on average 1.3789473684210527) internal successors, (262), 211 states have internal predecessors, (262), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 5 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 07:19:15,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 308 transitions. [2025-03-04 07:19:15,219 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 308 transitions. Word has length 8 [2025-03-04 07:19:15,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:19:15,220 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 308 transitions. [2025-03-04 07:19:15,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:19:15,220 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 308 transitions. [2025-03-04 07:19:15,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-04 07:19:15,220 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:19:15,220 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:19:15,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 07:19:15,421 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 [2025-03-04 07:19:15,421 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:19:15,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:19:15,422 INFO L85 PathProgramCache]: Analyzing trace with hash 422439980, now seen corresponding path program 1 times [2025-03-04 07:19:15,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:19:15,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401765984] [2025-03-04 07:19:15,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:19:15,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:19:15,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:19:15,424 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) [2025-03-04 07:19:15,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 07:19:15,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 07:19:15,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 07:19:15,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:19:15,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:19:15,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 07:19:15,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:19:15,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:19:15,579 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:19:15,579 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:19:15,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401765984] [2025-03-04 07:19:15,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401765984] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:19:15,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:19:15,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:19:15,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727405577] [2025-03-04 07:19:15,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:19:15,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:19:15,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:19:15,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:19:15,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:19:15,580 INFO L87 Difference]: Start difference. First operand 217 states and 308 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2025-03-04 07:19:19,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 07:19:20,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:19:20,931 INFO L93 Difference]: Finished difference Result 224 states and 302 transitions. [2025-03-04 07:19:20,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:19:20,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 [2025-03-04 07:19:20,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:19:20,935 INFO L225 Difference]: With dead ends: 224 [2025-03-04 07:19:20,935 INFO L226 Difference]: Without dead ends: 220 [2025-03-04 07:19:20,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:19:20,936 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 91 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2025-03-04 07:19:20,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 611 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2025-03-04 07:19:20,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2025-03-04 07:19:20,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 191. [2025-03-04 07:19:20,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 174 states have (on average 1.3448275862068966) internal successors, (234), 185 states have internal predecessors, (234), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 07:19:20,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 260 transitions. [2025-03-04 07:19:20,949 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 260 transitions. Word has length 10 [2025-03-04 07:19:20,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:19:20,949 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 260 transitions. [2025-03-04 07:19:20,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2025-03-04 07:19:20,949 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 260 transitions. [2025-03-04 07:19:20,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-04 07:19:20,950 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:19:20,950 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-04 07:19:20,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 07:19:21,151 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 [2025-03-04 07:19:21,151 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:19:21,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:19:21,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1103253103, now seen corresponding path program 1 times [2025-03-04 07:19:21,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:19:21,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [529926481] [2025-03-04 07:19:21,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:19:21,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:19:21,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:19:21,155 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) [2025-03-04 07:19:21,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 07:19:21,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-04 07:19:21,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-04 07:19:21,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:19:21,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:19:21,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:19:21,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:19:21,738 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 07:19:21,738 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:19:21,739 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:19:21,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529926481] [2025-03-04 07:19:21,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529926481] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:19:21,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:19:21,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:19:21,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523565401] [2025-03-04 07:19:21,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:19:21,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:19:21,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:19:21,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:19:21,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:19:21,740 INFO L87 Difference]: Start difference. First operand 191 states and 260 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 07:19:26,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 07:19:30,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 07:19:31,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:19:31,820 INFO L93 Difference]: Finished difference Result 283 states and 391 transitions. [2025-03-04 07:19:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 07:19:31,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2025-03-04 07:19:31,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:19:31,823 INFO L225 Difference]: With dead ends: 283 [2025-03-04 07:19:31,823 INFO L226 Difference]: Without dead ends: 283 [2025-03-04 07:19:31,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:19:31,824 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 335 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 24 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:19:31,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 432 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2025-03-04 07:19:31,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2025-03-04 07:19:31,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 193. [2025-03-04 07:19:31,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 176 states have (on average 1.3295454545454546) internal successors, (234), 187 states have internal predecessors, (234), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 07:19:31,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 260 transitions. [2025-03-04 07:19:31,834 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 260 transitions. Word has length 76 [2025-03-04 07:19:31,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:19:31,835 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 260 transitions. [2025-03-04 07:19:31,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 07:19:31,835 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 260 transitions. [2025-03-04 07:19:31,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-03-04 07:19:31,836 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:19:31,836 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-04 07:19:31,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 07:19:32,037 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 [2025-03-04 07:19:32,037 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:19:32,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:19:32,038 INFO L85 PathProgramCache]: Analyzing trace with hash 879483326, now seen corresponding path program 1 times [2025-03-04 07:19:32,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:19:32,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [544577951] [2025-03-04 07:19:32,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:19:32,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:19:32,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:19:32,041 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) [2025-03-04 07:19:32,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 07:19:32,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-04 07:19:32,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-04 07:19:32,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:19:32,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:19:32,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 07:19:32,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:19:32,335 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 07:19:32,335 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:19:32,335 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:19:32,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544577951] [2025-03-04 07:19:32,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544577951] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:19:32,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:19:32,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:19:32,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113112893] [2025-03-04 07:19:32,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:19:32,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:19:32,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:19:32,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:19:32,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:19:32,336 INFO L87 Difference]: Start difference. First operand 193 states and 260 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 07:19:32,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:19:32,418 INFO L93 Difference]: Finished difference Result 199 states and 250 transitions. [2025-03-04 07:19:32,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 07:19:32,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2025-03-04 07:19:32,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:19:32,421 INFO L225 Difference]: With dead ends: 199 [2025-03-04 07:19:32,421 INFO L226 Difference]: Without dead ends: 199 [2025-03-04 07:19:32,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:19:32,423 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 30 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:19:32,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 521 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:19:32,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2025-03-04 07:19:32,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2025-03-04 07:19:32,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 182 states have (on average 1.2307692307692308) internal successors, (224), 193 states have internal predecessors, (224), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 07:19:32,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 250 transitions. [2025-03-04 07:19:32,433 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 250 transitions. Word has length 78 [2025-03-04 07:19:32,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:19:32,433 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 250 transitions. [2025-03-04 07:19:32,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 07:19:32,433 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 250 transitions. [2025-03-04 07:19:32,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-03-04 07:19:32,434 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:19:32,434 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-04 07:19:32,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 07:19:32,635 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 [2025-03-04 07:19:32,635 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:19:32,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:19:32,636 INFO L85 PathProgramCache]: Analyzing trace with hash 427431127, now seen corresponding path program 1 times [2025-03-04 07:19:32,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:19:32,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527158359] [2025-03-04 07:19:32,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:19:32,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:19:32,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:19:32,638 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) [2025-03-04 07:19:32,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 07:19:32,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-04 07:19:32,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-04 07:19:32,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:19:32,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:19:32,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 07:19:32,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:19:32,924 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 07:19:32,924 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:19:32,924 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:19:32,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527158359] [2025-03-04 07:19:32,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527158359] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:19:32,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:19:32,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:19:32,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190749125] [2025-03-04 07:19:32,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:19:32,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:19:32,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:19:32,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:19:32,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:19:32,925 INFO L87 Difference]: Start difference. First operand 199 states and 250 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 07:19:32,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:19:32,958 INFO L93 Difference]: Finished difference Result 202 states and 254 transitions. [2025-03-04 07:19:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:19:32,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2025-03-04 07:19:32,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:19:32,960 INFO L225 Difference]: With dead ends: 202 [2025-03-04 07:19:32,961 INFO L226 Difference]: Without dead ends: 202 [2025-03-04 07:19:32,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:19:32,962 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:19:32,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 581 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:19:32,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2025-03-04 07:19:32,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2025-03-04 07:19:32,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 184 states have (on average 1.233695652173913) internal successors, (227), 196 states have internal predecessors, (227), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2025-03-04 07:19:32,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 254 transitions. [2025-03-04 07:19:32,968 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 254 transitions. Word has length 78 [2025-03-04 07:19:32,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:19:32,970 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 254 transitions. [2025-03-04 07:19:32,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 07:19:32,970 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 254 transitions. [2025-03-04 07:19:32,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-04 07:19:32,972 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:19:32,972 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:19:32,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 07:19:33,172 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 [2025-03-04 07:19:33,172 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:19:33,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:19:33,173 INFO L85 PathProgramCache]: Analyzing trace with hash -317187437, now seen corresponding path program 1 times [2025-03-04 07:19:33,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:19:33,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630439458] [2025-03-04 07:19:33,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:19:33,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:19:33,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:19:33,176 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) [2025-03-04 07:19:33,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 07:19:33,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-04 07:19:33,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-04 07:19:33,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:19:33,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:19:33,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 07:19:33,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:19:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-04 07:19:33,619 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:19:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-04 07:19:33,820 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:19:33,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630439458] [2025-03-04 07:19:33,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630439458] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:19:33,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:19:33,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2025-03-04 07:19:33,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469572958] [2025-03-04 07:19:33,821 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:19:33,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:19:33,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:19:33,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:19:33,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:19:33,822 INFO L87 Difference]: Start difference. First operand 202 states and 254 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 07:19:34,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:19:34,122 INFO L93 Difference]: Finished difference Result 400 states and 496 transitions. [2025-03-04 07:19:34,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:19:34,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 80 [2025-03-04 07:19:34,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:19:34,125 INFO L225 Difference]: With dead ends: 400 [2025-03-04 07:19:34,125 INFO L226 Difference]: Without dead ends: 400 [2025-03-04 07:19:34,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-04 07:19:34,125 INFO L435 NwaCegarLoop]: 304 mSDtfsCounter, 420 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 07:19:34,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 787 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 07:19:34,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2025-03-04 07:19:34,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2025-03-04 07:19:34,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 379 states have (on average 1.2137203166226913) internal successors, (460), 391 states have internal predecessors, (460), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (20), 7 states have call predecessors, (20), 16 states have call successors, (20) [2025-03-04 07:19:34,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 496 transitions. [2025-03-04 07:19:34,137 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 496 transitions. Word has length 80 [2025-03-04 07:19:34,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:19:34,137 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 496 transitions. [2025-03-04 07:19:34,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 07:19:34,137 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 496 transitions. [2025-03-04 07:19:34,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2025-03-04 07:19:34,140 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:19:34,140 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2025-03-04 07:19:34,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 07:19:34,340 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 [2025-03-04 07:19:34,341 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:19:34,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:19:34,341 INFO L85 PathProgramCache]: Analyzing trace with hash -152357246, now seen corresponding path program 1 times [2025-03-04 07:19:34,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:19:34,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658698537] [2025-03-04 07:19:34,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:19:34,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:19:34,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:19:34,344 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) [2025-03-04 07:19:34,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 07:19:34,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 239 statements into 1 equivalence classes. [2025-03-04 07:19:34,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 239 of 239 statements. [2025-03-04 07:19:34,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:19:34,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:19:35,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:19:35,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:19:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 112 proven. 1 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-03-04 07:19:35,063 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:19:35,147 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 112 proven. 1 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2025-03-04 07:19:35,148 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:19:35,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658698537] [2025-03-04 07:19:35,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658698537] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:19:35,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:19:35,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-04 07:19:35,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358477452] [2025-03-04 07:19:35,148 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:19:35,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 07:19:35,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:19:35,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 07:19:35,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-04 07:19:35,150 INFO L87 Difference]: Start difference. First operand 400 states and 496 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:19:35,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:19:35,281 INFO L93 Difference]: Finished difference Result 411 states and 519 transitions. [2025-03-04 07:19:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 07:19:35,285 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 239 [2025-03-04 07:19:35,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:19:35,286 INFO L225 Difference]: With dead ends: 411 [2025-03-04 07:19:35,286 INFO L226 Difference]: Without dead ends: 411 [2025-03-04 07:19:35,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-04 07:19:35,287 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 5 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:19:35,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 581 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:19:35,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2025-03-04 07:19:35,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 409. [2025-03-04 07:19:35,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 387 states have (on average 1.2248062015503876) internal successors, (474), 399 states have internal predecessors, (474), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (24), 7 states have call predecessors, (24), 16 states have call successors, (24) [2025-03-04 07:19:35,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 514 transitions. [2025-03-04 07:19:35,301 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 514 transitions. Word has length 239 [2025-03-04 07:19:35,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:19:35,301 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 514 transitions. [2025-03-04 07:19:35,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 07:19:35,302 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 514 transitions. [2025-03-04 07:19:35,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2025-03-04 07:19:35,304 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:19:35,304 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2025-03-04 07:19:35,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 07:19:35,504 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 [2025-03-04 07:19:35,505 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:19:35,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:19:35,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1334704194, now seen corresponding path program 2 times [2025-03-04 07:19:35,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:19:35,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2147134697] [2025-03-04 07:19:35,506 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 07:19:35,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:19:35,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:19:35,508 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) [2025-03-04 07:19:35,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 07:19:35,864 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 243 statements into 2 equivalence classes. [2025-03-04 07:19:36,235 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 07:19:36,235 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 07:19:36,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:19:36,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 07:19:36,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:19:36,332 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 124 proven. 3 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-04 07:19:36,333 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:19:36,473 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 106 proven. 20 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2025-03-04 07:19:36,474 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:19:36,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147134697] [2025-03-04 07:19:36,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147134697] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:19:36,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:19:36,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-04 07:19:36,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917951758] [2025-03-04 07:19:36,474 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:19:36,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 07:19:36,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:19:36,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 07:19:36,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-04 07:19:36,475 INFO L87 Difference]: Start difference. First operand 409 states and 514 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 07:19:36,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:19:36,722 INFO L93 Difference]: Finished difference Result 417 states and 524 transitions. [2025-03-04 07:19:36,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 07:19:36,723 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 243 [2025-03-04 07:19:36,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:19:36,725 INFO L225 Difference]: With dead ends: 417 [2025-03-04 07:19:36,725 INFO L226 Difference]: Without dead ends: 415 [2025-03-04 07:19:36,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-03-04 07:19:36,725 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 6 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:19:36,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1158 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:19:36,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2025-03-04 07:19:36,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2025-03-04 07:19:36,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 391 states have (on average 1.227621483375959) internal successors, (480), 403 states have internal predecessors, (480), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (20), 7 states have call predecessors, (20), 16 states have call successors, (20) [2025-03-04 07:19:36,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 516 transitions. [2025-03-04 07:19:36,735 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 516 transitions. Word has length 243 [2025-03-04 07:19:36,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:19:36,735 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 516 transitions. [2025-03-04 07:19:36,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 07:19:36,736 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 516 transitions. [2025-03-04 07:19:36,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2025-03-04 07:19:36,737 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:19:36,737 INFO L218 NwaCegarLoop]: trace histogram [10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2025-03-04 07:19:36,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-04 07:19:36,938 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 [2025-03-04 07:19:36,938 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:19:36,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:19:36,939 INFO L85 PathProgramCache]: Analyzing trace with hash -2141468226, now seen corresponding path program 3 times [2025-03-04 07:19:36,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:19:36,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442448657] [2025-03-04 07:19:36,939 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 07:19:36,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:19:36,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:19:36,942 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) [2025-03-04 07:19:36,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 07:19:37,270 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 247 statements into 9 equivalence classes.