./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.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 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:25:54,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:25:54,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-17 11:25:54,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:25:54,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:25:54,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:25:54,556 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:25:54,557 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:25:54,557 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:25:54,557 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:25:54,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:25:54,557 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:25:54,557 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:25:54,557 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:25:54,557 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:25:54,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:25:54,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:25:54,558 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:25:54,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:25:54,558 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:25:54,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:25:54,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:25:54,558 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:25:54,558 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:25:54,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:25:54,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:25:54,559 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:25:54,559 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:25:54,559 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:25:54,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:25:54,559 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:25:54,559 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:25:54,559 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:25:54,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:25:54,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:25:54,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:25:54,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:25:54,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:25:54,560 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:25:54,560 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:25:54,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:25:54,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:25:54,560 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:25:54,560 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:25:54,560 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:25:54,560 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 -> 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d [2025-03-17 11:25:54,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:25:54,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:25:54,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:25:54,792 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:25:54,792 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:25:54,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2025-03-17 11:25:55,983 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/333522607/99b779c7e3354dd48ea38d4ef65a6b46/FLAG943045911 [2025-03-17 11:25:56,294 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:25:56,294 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2025-03-17 11:25:56,313 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/333522607/99b779c7e3354dd48ea38d4ef65a6b46/FLAG943045911 [2025-03-17 11:25:56,529 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/333522607/99b779c7e3354dd48ea38d4ef65a6b46 [2025-03-17 11:25:56,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:25:56,531 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:25:56,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:25:56,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:25:56,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:25:56,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:25:56" (1/1) ... [2025-03-17 11:25:56,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f12060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:56, skipping insertion in model container [2025-03-17 11:25:56,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:25:56" (1/1) ... [2025-03-17 11:25:56,578 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:25:56,863 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,887 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,890 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,893 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,898 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,917 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,918 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,919 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,919 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,921 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,922 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,922 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,923 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,925 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:25:56,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:25:56,947 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) [2025-03-17 11:25:56,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f5f3423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:25:56, skipping insertion in model container [2025-03-17 11:25:56,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:25:56,948 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-17 11:25:56,953 INFO L158 Benchmark]: Toolchain (without parser) took 417.24ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 98.5MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 11:25:56,953 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 201.3MB. Free memory is still 116.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:25:56,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.60ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 98.5MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 11:25:56,955 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 201.3MB. Free memory is still 116.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.60ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 98.5MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.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 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:25:58,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:25:58,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-17 11:25:58,707 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:25:58,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:25:58,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:25:58,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:25:58,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:25:58,730 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:25:58,731 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:25:58,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:25:58,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:25:58,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:25:58,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:25:58,732 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:25:58,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:25:58,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:25:58,733 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:25:58,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:25:58,733 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:25:58,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:25:58,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:25:58,733 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:25:58,733 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:25:58,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:25:58,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:25:58,733 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:25:58,734 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 11:25:58,734 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 11:25:58,734 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:25:58,734 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:25:58,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:25:58,734 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:25:58,735 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:25:58,735 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:25:58,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:25:58,735 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:25:58,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:25:58,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:25:58,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:25:58,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:25:58,735 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 11:25:58,735 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 11:25:58,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:25:58,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:25:58,735 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:25:58,735 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:25:58,735 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 -> 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d [2025-03-17 11:25:58,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:25:58,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:25:58,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:25:58,974 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:25:58,974 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:25:58,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2025-03-17 11:26:00,087 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426c4afc6/d42def85d40642ba92213024d22d2d83/FLAG7bc57b9ea [2025-03-17 11:26:00,334 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:26:00,335 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2025-03-17 11:26:00,346 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426c4afc6/d42def85d40642ba92213024d22d2d83/FLAG7bc57b9ea [2025-03-17 11:26:00,356 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/426c4afc6/d42def85d40642ba92213024d22d2d83 [2025-03-17 11:26:00,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:26:00,358 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:26:00,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:26:00,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:26:00,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:26:00,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:26:00" (1/1) ... [2025-03-17 11:26:00,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4c8293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:00, skipping insertion in model container [2025-03-17 11:26:00,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:26:00" (1/1) ... [2025-03-17 11:26:00,400 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:26:00,708 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,739 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,741 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,744 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,749 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,778 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,779 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,780 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,780 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,782 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,783 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,784 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,784 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,789 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:26:00,806 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-17 11:26:00,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:26:00,841 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,858 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,859 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,860 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,866 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,878 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,878 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,879 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,879 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,880 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,881 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,881 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,882 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,883 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:26:00,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:26:00,888 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:26:00,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:26:01,025 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:26:01,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01 WrapperNode [2025-03-17 11:26:01,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:26:01,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:26:01,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:26:01,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:26:01,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (1/1) ... [2025-03-17 11:26:01,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (1/1) ... [2025-03-17 11:26:01,092 INFO L138 Inliner]: procedures = 286, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1026 [2025-03-17 11:26:01,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:26:01,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:26:01,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:26:01,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:26:01,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (1/1) ... [2025-03-17 11:26:01,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (1/1) ... [2025-03-17 11:26:01,106 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (1/1) ... [2025-03-17 11:26:01,173 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 12, 34, 220]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 54 writes are split as follows [0, 1, 4, 49]. [2025-03-17 11:26:01,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (1/1) ... [2025-03-17 11:26:01,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (1/1) ... [2025-03-17 11:26:01,197 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (1/1) ... [2025-03-17 11:26:01,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (1/1) ... [2025-03-17 11:26:01,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (1/1) ... [2025-03-17 11:26:01,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (1/1) ... [2025-03-17 11:26:01,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:26:01,227 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:26:01,227 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:26:01,227 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:26:01,227 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (1/1) ... [2025-03-17 11:26:01,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:26:01,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:26:01,249 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) [2025-03-17 11:26:01,252 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 [2025-03-17 11:26:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-17 11:26:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-03-17 11:26:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 11:26:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 11:26:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 11:26:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:26:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-03-17 11:26:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-03-17 11:26:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 11:26:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 11:26:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 11:26:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 11:26:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-03-17 11:26:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-03-17 11:26:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:26:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:26:01,434 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:26:01,435 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:26:01,507 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-03-17 11:26:05,940 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-03-17 11:26:05,940 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-03-17 11:26:05,940 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L987: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-17 11:26:05,992 INFO L? ?]: Removed 141 outVars from TransFormulas that were not future-live. [2025-03-17 11:26:05,992 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:26:06,000 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:26:06,001 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:26:06,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:26:06 BoogieIcfgContainer [2025-03-17 11:26:06,001 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:26:06,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:26:06,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:26:06,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:26:06,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:26:00" (1/3) ... [2025-03-17 11:26:06,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32be8369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:26:06, skipping insertion in model container [2025-03-17 11:26:06,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:26:01" (2/3) ... [2025-03-17 11:26:06,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32be8369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:26:06, skipping insertion in model container [2025-03-17 11:26:06,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:26:06" (3/3) ... [2025-03-17 11:26:06,010 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-1.i [2025-03-17 11:26:06,020 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:26:06,021 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test6-1.i that has 6 procedures, 226 locations, 1 initial locations, 34 loop locations, and 2 error locations. [2025-03-17 11:26:06,052 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:26:06,060 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;@6370a2bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:26:06,060 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 11:26:06,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 201 states have (on average 1.6069651741293531) internal successors, (323), 206 states have internal predecessors, (323), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-17 11:26:06,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-17 11:26:06,071 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:26:06,071 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:26:06,072 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:26:06,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:26:06,076 INFO L85 PathProgramCache]: Analyzing trace with hash -781790293, now seen corresponding path program 1 times [2025-03-17 11:26:06,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:26:06,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2038144025] [2025-03-17 11:26:06,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:26:06,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:26:06,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:26:06,092 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) [2025-03-17 11:26:06,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 11:26:06,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 11:26:06,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 11:26:06,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:26:06,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:26:06,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 11:26:06,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:26:06,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:26:06,285 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:26:06,285 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:26:06,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038144025] [2025-03-17 11:26:06,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038144025] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:26:06,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:26:06,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:26:06,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436157864] [2025-03-17 11:26:06,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:26:06,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 11:26:06,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:26:06,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 11:26:06,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 11:26:06,307 INFO L87 Difference]: Start difference. First operand has 226 states, 201 states have (on average 1.6069651741293531) internal successors, (323), 206 states have internal predecessors, (323), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-03-17 11:26:06,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:26:06,333 INFO L93 Difference]: Finished difference Result 221 states and 286 transitions. [2025-03-17 11:26:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 11:26:06,335 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 9 [2025-03-17 11:26:06,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:26:06,341 INFO L225 Difference]: With dead ends: 221 [2025-03-17 11:26:06,341 INFO L226 Difference]: Without dead ends: 219 [2025-03-17 11:26:06,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 11:26:06,347 INFO L435 NwaCegarLoop]: 286 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:26:06,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:26:06,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2025-03-17 11:26:06,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2025-03-17 11:26:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 196 states have (on average 1.2959183673469388) internal successors, (254), 201 states have internal predecessors, (254), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 11:26:06,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 284 transitions. [2025-03-17 11:26:06,381 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 284 transitions. Word has length 9 [2025-03-17 11:26:06,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:26:06,382 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 284 transitions. [2025-03-17 11:26:06,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-03-17 11:26:06,382 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 284 transitions. [2025-03-17 11:26:06,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 11:26:06,382 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:26:06,382 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:26:06,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 11:26:06,583 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 [2025-03-17 11:26:06,583 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:26:06,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:26:06,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1740129208, now seen corresponding path program 1 times [2025-03-17 11:26:06,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:26:06,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [649681631] [2025-03-17 11:26:06,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:26:06,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:26:06,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:26:06,586 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) [2025-03-17 11:26:06,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 11:26:06,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 11:26:06,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 11:26:06,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:26:06,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:26:06,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:26:06,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:26:06,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:26:06,828 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:26:06,829 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:26:06,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649681631] [2025-03-17 11:26:06,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649681631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:26:06,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:26:06,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:26:06,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461787130] [2025-03-17 11:26:06,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:26:06,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:26:06,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:26:06,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:26:06,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:26:06,832 INFO L87 Difference]: Start difference. First operand 219 states and 284 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2025-03-17 11:26:11,113 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 [] [2025-03-17 11:26:12,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:26:12,294 INFO L93 Difference]: Finished difference Result 330 states and 431 transitions. [2025-03-17 11:26:12,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:26:12,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 11 [2025-03-17 11:26:12,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:26:12,297 INFO L225 Difference]: With dead ends: 330 [2025-03-17 11:26:12,297 INFO L226 Difference]: Without dead ends: 330 [2025-03-17 11:26:12,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:26:12,297 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 134 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:26:12,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 767 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2025-03-17 11:26:12,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2025-03-17 11:26:12,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 326. [2025-03-17 11:26:12,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 303 states have (on average 1.306930693069307) internal successors, (396), 308 states have internal predecessors, (396), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 11:26:12,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 426 transitions. [2025-03-17 11:26:12,324 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 426 transitions. Word has length 11 [2025-03-17 11:26:12,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:26:12,324 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 426 transitions. [2025-03-17 11:26:12,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2025-03-17 11:26:12,324 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 426 transitions. [2025-03-17 11:26:12,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 11:26:12,325 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:26:12,325 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:26:12,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 11:26:12,526 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 [2025-03-17 11:26:12,526 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:26:12,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:26:12,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1227442875, now seen corresponding path program 1 times [2025-03-17 11:26:12,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:26:12,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760751645] [2025-03-17 11:26:12,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:26:12,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:26:12,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:26:12,532 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) [2025-03-17 11:26:12,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 11:26:12,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 11:26:12,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 11:26:12,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:26:12,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:26:12,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 11:26:12,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:26:12,694 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:26:12,695 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:26:12,695 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:26:12,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-03-17 11:26:12,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:26:12,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-03-17 11:26:12,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:26:12,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:26:12,794 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:26:12,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760751645] [2025-03-17 11:26:12,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760751645] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:26:12,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:26:12,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:26:12,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992954729] [2025-03-17 11:26:12,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:26:12,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:26:12,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:26:12,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:26:12,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:26:12,795 INFO L87 Difference]: Start difference. First operand 326 states and 426 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:26:13,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:26:13,231 INFO L93 Difference]: Finished difference Result 501 states and 661 transitions. [2025-03-17 11:26:13,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:26:13,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-03-17 11:26:13,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:26:13,234 INFO L225 Difference]: With dead ends: 501 [2025-03-17 11:26:13,234 INFO L226 Difference]: Without dead ends: 501 [2025-03-17 11:26:13,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:26:13,234 INFO L435 NwaCegarLoop]: 298 mSDtfsCounter, 224 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:26:13,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 845 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 11:26:13,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2025-03-17 11:26:13,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 325. [2025-03-17 11:26:13,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 302 states have (on average 1.304635761589404) internal successors, (394), 307 states have internal predecessors, (394), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 11:26:13,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 424 transitions. [2025-03-17 11:26:13,255 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 424 transitions. Word has length 14 [2025-03-17 11:26:13,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:26:13,255 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 424 transitions. [2025-03-17 11:26:13,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:26:13,255 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 424 transitions. [2025-03-17 11:26:13,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-17 11:26:13,256 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:26:13,257 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:26:13,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 11:26:13,457 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 [2025-03-17 11:26:13,457 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:26:13,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:26:13,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1346643987, now seen corresponding path program 1 times [2025-03-17 11:26:13,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:26:13,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1767463405] [2025-03-17 11:26:13,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:26:13,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:26:13,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:26:13,460 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) [2025-03-17 11:26:13,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 11:26:13,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-17 11:26:13,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-17 11:26:13,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:26:13,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:26:13,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:26:13,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:26:13,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:26:13,703 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:26:13,703 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:26:13,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767463405] [2025-03-17 11:26:13,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767463405] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:26:13,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:26:13,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:26:13,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98507921] [2025-03-17 11:26:13,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:26:13,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 11:26:13,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:26:13,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 11:26:13,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:26:13,704 INFO L87 Difference]: Start difference. First operand 325 states and 424 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:26:13,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:26:13,799 INFO L93 Difference]: Finished difference Result 331 states and 414 transitions. [2025-03-17 11:26:13,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:26:13,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2025-03-17 11:26:13,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:26:13,801 INFO L225 Difference]: With dead ends: 331 [2025-03-17 11:26:13,801 INFO L226 Difference]: Without dead ends: 331 [2025-03-17 11:26:13,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:26:13,803 INFO L435 NwaCegarLoop]: 255 mSDtfsCounter, 33 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:26:13,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 746 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:26:13,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2025-03-17 11:26:13,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2025-03-17 11:26:13,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 308 states have (on average 1.2467532467532467) internal successors, (384), 313 states have internal predecessors, (384), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 11:26:13,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 414 transitions. [2025-03-17 11:26:13,817 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 414 transitions. Word has length 47 [2025-03-17 11:26:13,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:26:13,817 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 414 transitions. [2025-03-17 11:26:13,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:26:13,817 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 414 transitions. [2025-03-17 11:26:13,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-17 11:26:13,819 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:26:13,819 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:26:13,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 11:26:14,020 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 [2025-03-17 11:26:14,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:26:14,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:26:14,021 INFO L85 PathProgramCache]: Analyzing trace with hash -593356185, now seen corresponding path program 1 times [2025-03-17 11:26:14,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:26:14,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [952910425] [2025-03-17 11:26:14,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:26:14,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:26:14,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:26:14,024 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) [2025-03-17 11:26:14,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 11:26:14,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-17 11:26:14,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-17 11:26:14,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:26:14,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:26:14,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 11:26:14,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:26:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:26:14,361 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:26:14,362 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:26:14,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952910425] [2025-03-17 11:26:14,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952910425] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:26:14,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:26:14,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:26:14,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803881869] [2025-03-17 11:26:14,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:26:14,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 11:26:14,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:26:14,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 11:26:14,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 11:26:14,363 INFO L87 Difference]: Start difference. First operand 331 states and 414 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:26:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:26:14,497 INFO L93 Difference]: Finished difference Result 340 states and 424 transitions. [2025-03-17 11:26:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 11:26:14,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2025-03-17 11:26:14,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:26:14,499 INFO L225 Difference]: With dead ends: 340 [2025-03-17 11:26:14,499 INFO L226 Difference]: Without dead ends: 340 [2025-03-17 11:26:14,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-17 11:26:14,500 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 8 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:26:14,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1631 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:26:14,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2025-03-17 11:26:14,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 339. [2025-03-17 11:26:14,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 313 states have (on average 1.2428115015974441) internal successors, (389), 319 states have internal predecessors, (389), 19 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-17 11:26:14,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 423 transitions. [2025-03-17 11:26:14,510 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 423 transitions. Word has length 47 [2025-03-17 11:26:14,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:26:14,510 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 423 transitions. [2025-03-17 11:26:14,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:26:14,511 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 423 transitions. [2025-03-17 11:26:14,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-17 11:26:14,515 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:26:14,515 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] [2025-03-17 11:26:14,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 11:26:14,715 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 [2025-03-17 11:26:14,716 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:26:14,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:26:14,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1179125414, now seen corresponding path program 1 times [2025-03-17 11:26:14,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:26:14,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935840781] [2025-03-17 11:26:14,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:26:14,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:26:14,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:26:14,720 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) [2025-03-17 11:26:14,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 11:26:14,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-17 11:26:14,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-17 11:26:14,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:26:14,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:26:14,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:26:14,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:26:15,027 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:26:15,028 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:26:15,028 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:26:15,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935840781] [2025-03-17 11:26:15,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935840781] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:26:15,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:26:15,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:26:15,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032800841] [2025-03-17 11:26:15,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:26:15,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:26:15,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:26:15,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:26:15,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:26:15,030 INFO L87 Difference]: Start difference. First operand 339 states and 423 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 11:26:15,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:26:15,233 INFO L93 Difference]: Finished difference Result 895 states and 1136 transitions. [2025-03-17 11:26:15,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:26:15,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 66 [2025-03-17 11:26:15,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:26:15,237 INFO L225 Difference]: With dead ends: 895 [2025-03-17 11:26:15,237 INFO L226 Difference]: Without dead ends: 895 [2025-03-17 11:26:15,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:26:15,237 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 498 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:26:15,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1405 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 11:26:15,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2025-03-17 11:26:15,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 841. [2025-03-17 11:26:15,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 795 states have (on average 1.261635220125786) internal successors, (1003), 802 states have internal predecessors, (1003), 33 states have call successors, (33), 12 states have call predecessors, (33), 11 states have return successors, (32), 26 states have call predecessors, (32), 29 states have call successors, (32) [2025-03-17 11:26:15,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1068 transitions. [2025-03-17 11:26:15,256 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1068 transitions. Word has length 66 [2025-03-17 11:26:15,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:26:15,257 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1068 transitions. [2025-03-17 11:26:15,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 11:26:15,258 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1068 transitions. [2025-03-17 11:26:15,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-17 11:26:15,259 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:26:15,259 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:26:15,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 11:26:15,459 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 [2025-03-17 11:26:15,460 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:26:15,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:26:15,460 INFO L85 PathProgramCache]: Analyzing trace with hash -931706012, now seen corresponding path program 1 times [2025-03-17 11:26:15,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:26:15,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [861698089] [2025-03-17 11:26:15,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:26:15,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:26:15,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:26:15,463 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) [2025-03-17 11:26:15,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 11:26:15,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-17 11:26:15,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-17 11:26:15,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:26:15,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:26:15,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:26:15,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:26:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 11:26:15,847 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:26:15,847 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:26:15,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861698089] [2025-03-17 11:26:15,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861698089] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:26:15,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:26:15,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:26:15,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039355432] [2025-03-17 11:26:15,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:26:15,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:26:15,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:26:15,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:26:15,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:26:15,849 INFO L87 Difference]: Start difference. First operand 841 states and 1068 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 11:26:15,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:26:15,884 INFO L93 Difference]: Finished difference Result 850 states and 1080 transitions. [2025-03-17 11:26:15,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:26:15,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 91 [2025-03-17 11:26:15,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:26:15,888 INFO L225 Difference]: With dead ends: 850 [2025-03-17 11:26:15,889 INFO L226 Difference]: Without dead ends: 850 [2025-03-17 11:26:15,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:26:15,889 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 0 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:26:15,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 803 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:26:15,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2025-03-17 11:26:15,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2025-03-17 11:26:15,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 801 states have (on average 1.2634207240948814) internal successors, (1012), 811 states have internal predecessors, (1012), 33 states have call successors, (33), 12 states have call predecessors, (33), 14 states have return successors, (35), 26 states have call predecessors, (35), 29 states have call successors, (35) [2025-03-17 11:26:15,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1080 transitions. [2025-03-17 11:26:15,907 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1080 transitions. Word has length 91 [2025-03-17 11:26:15,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:26:15,907 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1080 transitions. [2025-03-17 11:26:15,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 11:26:15,908 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1080 transitions. [2025-03-17 11:26:15,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-03-17 11:26:15,908 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:26:15,909 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:26:15,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 11:26:16,109 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 [2025-03-17 11:26:16,110 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:26:16,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:26:16,110 INFO L85 PathProgramCache]: Analyzing trace with hash 127307358, now seen corresponding path program 1 times [2025-03-17 11:26:16,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:26:16,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1295182672] [2025-03-17 11:26:16,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:26:16,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:26:16,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:26:16,112 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) [2025-03-17 11:26:16,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 11:26:16,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-17 11:26:16,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-17 11:26:16,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:26:16,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:26:16,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 11:26:16,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:26:16,690 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 11:26:16,690 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:26:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 11:26:16,943 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:26:16,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295182672] [2025-03-17 11:26:16,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295182672] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:26:16,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:26:16,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2025-03-17 11:26:16,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986489769] [2025-03-17 11:26:16,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:26:16,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 11:26:16,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:26:16,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 11:26:16,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-17 11:26:16,945 INFO L87 Difference]: Start difference. First operand 850 states and 1080 transitions. Second operand has 14 states, 14 states have (on average 10.785714285714286) internal successors, (151), 12 states have internal predecessors, (151), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-03-17 11:26:18,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:26:18,723 INFO L93 Difference]: Finished difference Result 3219 states and 4116 transitions. [2025-03-17 11:26:18,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-17 11:26:18,724 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.785714285714286) internal successors, (151), 12 states have internal predecessors, (151), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 93 [2025-03-17 11:26:18,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:26:18,738 INFO L225 Difference]: With dead ends: 3219 [2025-03-17 11:26:18,738 INFO L226 Difference]: Without dead ends: 3219 [2025-03-17 11:26:18,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2025-03-17 11:26:18,740 INFO L435 NwaCegarLoop]: 937 mSDtfsCounter, 2713 mSDsluCounter, 7503 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2744 SdHoareTripleChecker+Valid, 8440 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:26:18,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2744 Valid, 8440 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-17 11:26:18,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2025-03-17 11:26:18,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 2376. [2025-03-17 11:26:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2376 states, 2276 states have (on average 1.2693321616871704) internal successors, (2889), 2294 states have internal predecessors, (2889), 69 states have call successors, (69), 26 states have call predecessors, (69), 29 states have return successors, (74), 55 states have call predecessors, (74), 65 states have call successors, (74) [2025-03-17 11:26:18,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 3032 transitions. [2025-03-17 11:26:18,798 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 3032 transitions. Word has length 93 [2025-03-17 11:26:18,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:26:18,798 INFO L471 AbstractCegarLoop]: Abstraction has 2376 states and 3032 transitions. [2025-03-17 11:26:18,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.785714285714286) internal successors, (151), 12 states have internal predecessors, (151), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-03-17 11:26:18,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 3032 transitions. [2025-03-17 11:26:18,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-17 11:26:18,801 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:26:18,801 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:26:18,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 11:26:19,001 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 [2025-03-17 11:26:19,001 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:26:19,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:26:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1766872033, now seen corresponding path program 1 times [2025-03-17 11:26:19,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:26:19,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093463718] [2025-03-17 11:26:19,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:26:19,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:26:19,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:26:19,004 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) [2025-03-17 11:26:19,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 11:26:19,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-17 11:26:19,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-17 11:26:19,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:26:19,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:26:19,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 11:26:19,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:26:19,357 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:26:19,358 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:26:19,358 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:26:19,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-03-17 11:26:19,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:26:19,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-03-17 11:26:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 11:26:19,404 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:26:19,404 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:26:19,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093463718] [2025-03-17 11:26:19,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093463718] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:26:19,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:26:19,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:26:19,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358263569] [2025-03-17 11:26:19,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:26:19,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:26:19,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:26:19,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:26:19,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:26:19,405 INFO L87 Difference]: Start difference. First operand 2376 states and 3032 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 11:26:19,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:26:19,802 INFO L93 Difference]: Finished difference Result 3351 states and 4333 transitions. [2025-03-17 11:26:19,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:26:19,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 101 [2025-03-17 11:26:19,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:26:19,812 INFO L225 Difference]: With dead ends: 3351 [2025-03-17 11:26:19,813 INFO L226 Difference]: Without dead ends: 3351 [2025-03-17 11:26:19,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:26:19,813 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 209 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:26:19,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 745 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 11:26:19,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2025-03-17 11:26:19,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 2392. [2025-03-17 11:26:19,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2292 states have (on average 1.2674520069808028) internal successors, (2905), 2310 states have internal predecessors, (2905), 69 states have call successors, (69), 26 states have call predecessors, (69), 29 states have return successors, (74), 55 states have call predecessors, (74), 65 states have call successors, (74) [2025-03-17 11:26:19,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3048 transitions. [2025-03-17 11:26:19,859 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3048 transitions. Word has length 101 [2025-03-17 11:26:19,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:26:19,860 INFO L471 AbstractCegarLoop]: Abstraction has 2392 states and 3048 transitions. [2025-03-17 11:26:19,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 11:26:19,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3048 transitions. [2025-03-17 11:26:19,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-17 11:26:19,861 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:26:19,861 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:26:19,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 11:26:20,061 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 [2025-03-17 11:26:20,062 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:26:20,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:26:20,064 INFO L85 PathProgramCache]: Analyzing trace with hash -366669286, now seen corresponding path program 1 times [2025-03-17 11:26:20,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:26:20,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110314081] [2025-03-17 11:26:20,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:26:20,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:26:20,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:26:20,066 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) [2025-03-17 11:26:20,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 11:26:20,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-17 11:26:20,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-17 11:26:20,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:26:20,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:26:20,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:26:20,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:26:20,491 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 11:26:20,492 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:26:20,589 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-17 11:26:20,590 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:26:20,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110314081] [2025-03-17 11:26:20,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110314081] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:26:20,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:26:20,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-17 11:26:20,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528336843] [2025-03-17 11:26:20,590 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:26:20,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 11:26:20,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:26:20,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 11:26:20,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 11:26:20,591 INFO L87 Difference]: Start difference. First operand 2392 states and 3048 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-17 11:26:20,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:26:20,742 INFO L93 Difference]: Finished difference Result 2458 states and 3150 transitions. [2025-03-17 11:26:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:26:20,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 107 [2025-03-17 11:26:20,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:26:20,749 INFO L225 Difference]: With dead ends: 2458 [2025-03-17 11:26:20,749 INFO L226 Difference]: Without dead ends: 2458 [2025-03-17 11:26:20,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-17 11:26:20,750 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 4 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:26:20,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1332 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:26:20,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2025-03-17 11:26:20,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2446. [2025-03-17 11:26:20,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2446 states, 2340 states have (on average 1.2773504273504273) internal successors, (2989), 2358 states have internal predecessors, (2989), 69 states have call successors, (69), 32 states have call predecessors, (69), 35 states have return successors, (80), 55 states have call predecessors, (80), 65 states have call successors, (80) [2025-03-17 11:26:20,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 3138 transitions. [2025-03-17 11:26:20,792 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 3138 transitions. Word has length 107 [2025-03-17 11:26:20,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:26:20,792 INFO L471 AbstractCegarLoop]: Abstraction has 2446 states and 3138 transitions. [2025-03-17 11:26:20,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-17 11:26:20,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 3138 transitions. [2025-03-17 11:26:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-17 11:26:20,794 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:26:20,794 INFO L218 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:26:20,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 11:26:20,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:26:20,994 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:26:20,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:26:20,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1798609280, now seen corresponding path program 2 times [2025-03-17 11:26:20,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:26:20,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386842547] [2025-03-17 11:26:20,996 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:26:20,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:26:20,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:26:20,997 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:26:20,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 11:26:21,229 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 111 statements into 2 equivalence classes.