./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:10:21,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:10:21,086 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-04 07:10:21,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:10:21,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:10:21,113 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:10:21,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:10:21,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:10:21,114 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 07:10:21,114 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 07:10:21,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:10:21,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:10:21,115 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:10:21,115 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:10:21,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:10:21,116 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:10:21,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:10:21,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:10:21,117 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:10:21,117 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 07:10:21,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 07:10:21,117 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:10:21,117 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:10:21,117 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:10:21,117 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:10:21,117 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 -> e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 [2025-03-04 07:10:21,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:10:21,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:10:21,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:10:21,355 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:10:21,355 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:10:21,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2025-03-04 07:10:22,499 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88ab9182e/28a0847172704b5a9f0e7cb4616c9b08/FLAG628df8de8 [2025-03-04 07:10:22,853 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:10:22,854 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2025-03-04 07:10:22,872 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88ab9182e/28a0847172704b5a9f0e7cb4616c9b08/FLAG628df8de8 [2025-03-04 07:10:23,061 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88ab9182e/28a0847172704b5a9f0e7cb4616c9b08 [2025-03-04 07:10:23,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:10:23,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:10:23,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:10:23,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:10:23,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:10:23,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:10:23" (1/1) ... [2025-03-04 07:10:23,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4578ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:23, skipping insertion in model container [2025-03-04 07:10:23,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:10:23" (1/1) ... [2025-03-04 07:10:23,099 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:10:23,372 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,397 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,399 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,401 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,405 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,432 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,433 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,434 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,434 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,436 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,437 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,437 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,438 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,440 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,441 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,442 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,449 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,450 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,450 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,452 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:23,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:10:23,471 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-03-04 07:10:23,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3153529b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:23, skipping insertion in model container [2025-03-04 07:10:23,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:10:23,472 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-04 07:10:23,473 INFO L158 Benchmark]: Toolchain (without parser) took 408.66ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 98.5MB in the end (delta: 21.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 07:10:23,475 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 07:10:23,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.08ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 98.5MB in the end (delta: 21.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 07:10:23,476 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.08ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 98.5MB in the end (delta: 21.8MB). 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_FNV_test6-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:10:25,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:10:25,193 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-04 07:10:25,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:10:25,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:10:25,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:10:25,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:10:25,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:10:25,222 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 07:10:25,222 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 07:10:25,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:10:25,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:10:25,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:10:25,223 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:10:25,223 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:10:25,223 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:10:25,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 07:10:25,223 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:10:25,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:10:25,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:10:25,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:10:25,224 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 07:10:25,224 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 07:10:25,224 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 07:10:25,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:10:25,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 07:10:25,224 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 07:10:25,224 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 07:10:25,224 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 07:10:25,225 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:10:25,225 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:10:25,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 07:10:25,225 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:10:25,225 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:10:25,225 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:10:25,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:10:25,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 07:10:25,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:10:25,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:10:25,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:10:25,226 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:10:25,226 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 07:10:25,226 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 07:10:25,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:10:25,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:10:25,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:10:25,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:10:25,227 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 -> e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 [2025-03-04 07:10:25,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:10:25,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:10:25,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:10:25,459 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:10:25,459 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:10:25,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2025-03-04 07:10:26,605 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d4bbfa4/950c745d777c429eaba9d708811f7e73/FLAG841c1c73c [2025-03-04 07:10:26,861 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:10:26,863 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2025-03-04 07:10:26,881 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d4bbfa4/950c745d777c429eaba9d708811f7e73/FLAG841c1c73c [2025-03-04 07:10:27,167 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d4bbfa4/950c745d777c429eaba9d708811f7e73 [2025-03-04 07:10:27,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:10:27,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:10:27,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:10:27,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:10:27,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:10:27,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:27,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5b7216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27, skipping insertion in model container [2025-03-04 07:10:27,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:27,213 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:10:27,562 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,585 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,588 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,593 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,598 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,626 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,627 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,628 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,628 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,631 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,632 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,633 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,635 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,638 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,638 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,640 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,641 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,641 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,641 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,646 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:10:27,666 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-04 07:10:27,676 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:10:27,710 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,726 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,727 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,729 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,733 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,753 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,757 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,758 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,758 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,760 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,761 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,761 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,762 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,764 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,768 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,769 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,769 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,769 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,770 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,771 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-04 07:10:27,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:10:27,776 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 07:10:27,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:10:27,917 INFO L204 MainTranslator]: Completed translation [2025-03-04 07:10:27,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27 WrapperNode [2025-03-04 07:10:27,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:10:27,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 07:10:27,919 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 07:10:27,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 07:10:27,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:27,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:27,984 INFO L138 Inliner]: procedures = 286, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1181 [2025-03-04 07:10:27,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 07:10:27,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 07:10:27,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 07:10:27,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 07:10:27,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:27,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:28,003 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:28,077 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 270, 34]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 57, 4]. [2025-03-04 07:10:28,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:28,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:28,110 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:28,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:28,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:28,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:28,136 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 07:10:28,141 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 07:10:28,141 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 07:10:28,141 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 07:10:28,142 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (1/1) ... [2025-03-04 07:10:28,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:10:28,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:10:28,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 07:10:28,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 07:10:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-04 07:10:28,187 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-04 07:10:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-04 07:10:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-04 07:10:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-03-04 07:10:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2025-03-04 07:10:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-04 07:10:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-04 07:10:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-04 07:10:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-04 07:10:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 07:10:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 07:10:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 07:10:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 07:10:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 07:10:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 07:10:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-04 07:10:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-04 07:10:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-04 07:10:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-04 07:10:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-04 07:10:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-03-04 07:10:28,190 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 07:10:28,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-03-04 07:10:28,190 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 07:10:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 07:10:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 07:10:28,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 07:10:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-03-04 07:10:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-03-04 07:10:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 07:10:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 07:10:28,387 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 07:10:28,388 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 07:10:28,448 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-03-04 07:10:35,311 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-03-04 07:10:35,311 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-03-04 07:10:35,311 INFO L1325 $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; [2025-03-04 07:10:35,367 INFO L? ?]: Removed 169 outVars from TransFormulas that were not future-live. [2025-03-04 07:10:35,367 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 07:10:35,377 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 07:10:35,378 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 07:10:35,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:10:35 BoogieIcfgContainer [2025-03-04 07:10:35,378 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 07:10:35,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 07:10:35,380 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 07:10:35,383 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 07:10:35,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 07:10:27" (1/3) ... [2025-03-04 07:10:35,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3899fb3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:10:35, skipping insertion in model container [2025-03-04 07:10:35,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:10:27" (2/3) ... [2025-03-04 07:10:35,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3899fb3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:10:35, skipping insertion in model container [2025-03-04 07:10:35,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:10:35" (3/3) ... [2025-03-04 07:10:35,385 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test6-2.i [2025-03-04 07:10:35,394 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 07:10:35,395 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test6-2.i that has 6 procedures, 262 locations, 1 initial locations, 39 loop locations, and 2 error locations. [2025-03-04 07:10:35,426 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 07:10:35,434 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;@787fea71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 07:10:35,434 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-04 07:10:35,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 262 states, 235 states have (on average 1.6) internal successors, (376), 240 states have internal predecessors, (376), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-04 07:10:35,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-04 07:10:35,447 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:10:35,447 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:10:35,448 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:10:35,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:10:35,451 INFO L85 PathProgramCache]: Analyzing trace with hash -596919528, now seen corresponding path program 1 times [2025-03-04 07:10:35,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:10:35,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [301954818] [2025-03-04 07:10:35,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:10:35,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:35,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:10:35,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:10:35,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 07:10:35,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 07:10:35,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 07:10:35,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:10:35,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:10:35,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 07:10:35,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:10:35,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:10:35,676 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:10:35,677 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:10:35,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301954818] [2025-03-04 07:10:35,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301954818] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:10:35,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:10:35,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:10:35,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696610297] [2025-03-04 07:10:35,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:10:35,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 07:10:35,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:10:35,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 07:10:35,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 07:10:35,697 INFO L87 Difference]: Start difference. First operand has 262 states, 235 states have (on average 1.6) internal successors, (376), 240 states have internal predecessors, (376), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:10:35,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:10:35,722 INFO L93 Difference]: Finished difference Result 257 states and 335 transitions. [2025-03-04 07:10:35,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 07:10:35,726 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-04 07:10:35,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:10:35,732 INFO L225 Difference]: With dead ends: 257 [2025-03-04 07:10:35,733 INFO L226 Difference]: Without dead ends: 255 [2025-03-04 07:10:35,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 07:10:35,738 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:10:35,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:10:35,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2025-03-04 07:10:35,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2025-03-04 07:10:35,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 230 states have (on average 1.3) internal successors, (299), 235 states have internal predecessors, (299), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-04 07:10:35,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 333 transitions. [2025-03-04 07:10:35,783 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 333 transitions. Word has length 10 [2025-03-04 07:10:35,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:10:35,783 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 333 transitions. [2025-03-04 07:10:35,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:10:35,783 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 333 transitions. [2025-03-04 07:10:35,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 07:10:35,783 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:10:35,783 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:10:35,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 07:10:35,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:35,984 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:10:35,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:10:35,985 INFO L85 PathProgramCache]: Analyzing trace with hash 739244149, now seen corresponding path program 1 times [2025-03-04 07:10:35,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:10:35,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2066542595] [2025-03-04 07:10:35,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:10:35,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:35,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:10:35,988 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:10:35,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 07:10:36,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 07:10:36,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 07:10:36,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:10:36,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:10:36,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 07:10:36,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:10:36,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:10:36,219 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:10:36,219 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:10:36,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066542595] [2025-03-04 07:10:36,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066542595] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:10:36,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:10:36,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:10:36,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678849009] [2025-03-04 07:10:36,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:10:36,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:10:36,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:10:36,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:10:36,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:10:36,221 INFO L87 Difference]: Start difference. First operand 255 states and 333 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:10:39,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 07:10:41,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:10:41,638 INFO L93 Difference]: Finished difference Result 405 states and 532 transitions. [2025-03-04 07:10:41,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:10:41,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-03-04 07:10:41,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:10:41,641 INFO L225 Difference]: With dead ends: 405 [2025-03-04 07:10:41,642 INFO L226 Difference]: Without dead ends: 405 [2025-03-04 07:10:41,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:10:41,642 INFO L435 NwaCegarLoop]: 346 mSDtfsCounter, 180 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2025-03-04 07:10:41,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 950 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2025-03-04 07:10:41,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2025-03-04 07:10:41,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 370. [2025-03-04 07:10:41,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 342 states have (on average 1.304093567251462) internal successors, (446), 347 states have internal predecessors, (446), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 07:10:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 486 transitions. [2025-03-04 07:10:41,666 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 486 transitions. Word has length 12 [2025-03-04 07:10:41,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:10:41,666 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 486 transitions. [2025-03-04 07:10:41,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:10:41,666 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 486 transitions. [2025-03-04 07:10:41,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-04 07:10:41,667 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:10:41,667 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:10:41,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 07:10:41,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:41,868 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:10:41,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:10:41,869 INFO L85 PathProgramCache]: Analyzing trace with hash -555946487, now seen corresponding path program 1 times [2025-03-04 07:10:41,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:10:41,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520276958] [2025-03-04 07:10:41,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:10:41,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:41,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:10:41,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:10:41,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 07:10:41,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 07:10:42,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 07:10:42,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:10:42,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:10:42,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 07:10:42,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:10:42,030 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 07:10:42,030 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 07:10:42,031 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 07:10:42,038 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 [2025-03-04 07:10:42,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 07:10:42,095 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 [2025-03-04 07:10:42,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:10:42,109 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:10:42,109 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:10:42,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520276958] [2025-03-04 07:10:42,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520276958] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:10:42,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:10:42,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:10:42,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92476825] [2025-03-04 07:10:42,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:10:42,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:10:42,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:10:42,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:10:42,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:10:42,111 INFO L87 Difference]: Start difference. First operand 370 states and 486 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:10:42,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:10:42,492 INFO L93 Difference]: Finished difference Result 580 states and 769 transitions. [2025-03-04 07:10:42,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:10:42,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-03-04 07:10:42,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:10:42,495 INFO L225 Difference]: With dead ends: 580 [2025-03-04 07:10:42,495 INFO L226 Difference]: Without dead ends: 580 [2025-03-04 07:10:42,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:10:42,495 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 267 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 07:10:42,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 1025 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 07:10:42,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-03-04 07:10:42,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 369. [2025-03-04 07:10:42,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 341 states have (on average 1.3020527859237536) internal successors, (444), 346 states have internal predecessors, (444), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 07:10:42,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 484 transitions. [2025-03-04 07:10:42,505 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 484 transitions. Word has length 15 [2025-03-04 07:10:42,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:10:42,505 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 484 transitions. [2025-03-04 07:10:42,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:10:42,505 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 484 transitions. [2025-03-04 07:10:42,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-04 07:10:42,506 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:10:42,506 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:10:42,513 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 07:10:42,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:42,707 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:10:42,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:10:42,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1096500670, now seen corresponding path program 1 times [2025-03-04 07:10:42,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:10:42,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [460448535] [2025-03-04 07:10:42,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:10:42,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:42,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:10:42,710 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:10:42,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 07:10:42,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 07:10:42,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 07:10:42,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:10:42,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:10:42,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 07:10:42,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:10:42,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:10:42,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:10:42,961 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:10:42,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460448535] [2025-03-04 07:10:42,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460448535] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:10:42,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:10:42,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 07:10:42,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551411028] [2025-03-04 07:10:42,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:10:42,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:10:42,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:10:42,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:10:42,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:10:42,962 INFO L87 Difference]: Start difference. First operand 369 states and 484 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:10:43,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:10:43,055 INFO L93 Difference]: Finished difference Result 409 states and 524 transitions. [2025-03-04 07:10:43,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:10:43,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-04 07:10:43,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:10:43,058 INFO L225 Difference]: With dead ends: 409 [2025-03-04 07:10:43,058 INFO L226 Difference]: Without dead ends: 409 [2025-03-04 07:10:43,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:10:43,059 INFO L435 NwaCegarLoop]: 313 mSDtfsCounter, 8 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:10:43,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 611 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:10:43,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2025-03-04 07:10:43,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2025-03-04 07:10:43,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 381 states have (on average 1.2703412073490814) internal successors, (484), 386 states have internal predecessors, (484), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 07:10:43,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 524 transitions. [2025-03-04 07:10:43,072 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 524 transitions. Word has length 48 [2025-03-04 07:10:43,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:10:43,072 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 524 transitions. [2025-03-04 07:10:43,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:10:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 524 transitions. [2025-03-04 07:10:43,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-04 07:10:43,073 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:10:43,073 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:10:43,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 07:10:43,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:43,276 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:10:43,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:10:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash 71008671, now seen corresponding path program 1 times [2025-03-04 07:10:43,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:10:43,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [457941795] [2025-03-04 07:10:43,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:10:43,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:43,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:10:43,280 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:10:43,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 07:10:43,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 07:10:43,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 07:10:43,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:10:43,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:10:43,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 07:10:43,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:10:43,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:10:43,517 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:10:43,517 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:10:43,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457941795] [2025-03-04 07:10:43,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457941795] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:10:43,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:10:43,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:10:43,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306449271] [2025-03-04 07:10:43,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:10:43,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:10:43,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:10:43,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:10:43,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:10:43,518 INFO L87 Difference]: Start difference. First operand 409 states and 524 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:10:43,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:10:43,615 INFO L93 Difference]: Finished difference Result 375 states and 468 transitions. [2025-03-04 07:10:43,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 07:10:43,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-04 07:10:43,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:10:43,616 INFO L225 Difference]: With dead ends: 375 [2025-03-04 07:10:43,617 INFO L226 Difference]: Without dead ends: 375 [2025-03-04 07:10:43,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:10:43,617 INFO L435 NwaCegarLoop]: 301 mSDtfsCounter, 32 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:10:43,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 889 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:10:43,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-03-04 07:10:43,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2025-03-04 07:10:43,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 347 states have (on average 1.2334293948126802) internal successors, (428), 352 states have internal predecessors, (428), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 07:10:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 468 transitions. [2025-03-04 07:10:43,624 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 468 transitions. Word has length 48 [2025-03-04 07:10:43,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:10:43,624 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 468 transitions. [2025-03-04 07:10:43,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:10:43,624 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 468 transitions. [2025-03-04 07:10:43,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-04 07:10:43,625 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:10:43,625 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:10:43,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 07:10:43,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:43,826 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:10:43,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:10:43,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1837866824, now seen corresponding path program 1 times [2025-03-04 07:10:43,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:10:43,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1987103202] [2025-03-04 07:10:43,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:10:43,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:43,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:10:43,829 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:10:43,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 07:10:43,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 07:10:44,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 07:10:44,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:10:44,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:10:44,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 07:10:44,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:10:44,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:10:44,165 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:10:44,166 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:10:44,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987103202] [2025-03-04 07:10:44,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987103202] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:10:44,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:10:44,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 07:10:44,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292607151] [2025-03-04 07:10:44,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:10:44,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 07:10:44,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:10:44,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 07:10:44,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-04 07:10:44,167 INFO L87 Difference]: Start difference. First operand 375 states and 468 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:10:44,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:10:44,276 INFO L93 Difference]: Finished difference Result 384 states and 478 transitions. [2025-03-04 07:10:44,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 07:10:44,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-04 07:10:44,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:10:44,279 INFO L225 Difference]: With dead ends: 384 [2025-03-04 07:10:44,279 INFO L226 Difference]: Without dead ends: 384 [2025-03-04 07:10:44,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-04 07:10:44,280 INFO L435 NwaCegarLoop]: 316 mSDtfsCounter, 8 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:10:44,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2191 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:10:44,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2025-03-04 07:10:44,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 383. [2025-03-04 07:10:44,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 352 states have (on average 1.2301136363636365) internal successors, (433), 358 states have internal predecessors, (433), 24 states have call successors, (24), 7 states have call predecessors, (24), 5 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-04 07:10:44,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 477 transitions. [2025-03-04 07:10:44,287 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 477 transitions. Word has length 48 [2025-03-04 07:10:44,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:10:44,287 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 477 transitions. [2025-03-04 07:10:44,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:10:44,287 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 477 transitions. [2025-03-04 07:10:44,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-04 07:10:44,287 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:10:44,288 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:10:44,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 07:10:44,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:44,488 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:10:44,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:10:44,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1271123850, now seen corresponding path program 1 times [2025-03-04 07:10:44,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:10:44,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [287843027] [2025-03-04 07:10:44,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:10:44,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:44,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:10:44,494 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:10:44,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 07:10:44,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-04 07:10:44,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-04 07:10:44,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:10:44,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:10:44,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 07:10:44,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:10:44,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:10:44,784 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:10:44,784 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:10:44,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287843027] [2025-03-04 07:10:44,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287843027] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:10:44,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:10:44,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:10:44,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958575527] [2025-03-04 07:10:44,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:10:44,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:10:44,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:10:44,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:10:44,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:10:44,785 INFO L87 Difference]: Start difference. First operand 383 states and 477 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:10:44,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:10:44,988 INFO L93 Difference]: Finished difference Result 1021 states and 1297 transitions. [2025-03-04 07:10:44,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:10:44,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 68 [2025-03-04 07:10:44,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:10:44,993 INFO L225 Difference]: With dead ends: 1021 [2025-03-04 07:10:44,993 INFO L226 Difference]: Without dead ends: 1021 [2025-03-04 07:10:44,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:10:44,996 INFO L435 NwaCegarLoop]: 700 mSDtfsCounter, 586 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 07:10:44,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 1646 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 07:10:44,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2025-03-04 07:10:45,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 939. [2025-03-04 07:10:45,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 877 states have (on average 1.2508551881413912) internal successors, (1097), 887 states have internal predecessors, (1097), 48 states have call successors, (48), 13 states have call predecessors, (48), 12 states have return successors, (47), 38 states have call predecessors, (47), 44 states have call successors, (47) [2025-03-04 07:10:45,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1192 transitions. [2025-03-04 07:10:45,021 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1192 transitions. Word has length 68 [2025-03-04 07:10:45,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:10:45,021 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1192 transitions. [2025-03-04 07:10:45,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 07:10:45,021 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1192 transitions. [2025-03-04 07:10:45,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-03-04 07:10:45,023 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:10:45,023 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:10:45,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 07:10:45,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:45,226 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:10:45,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:10:45,226 INFO L85 PathProgramCache]: Analyzing trace with hash -548066280, now seen corresponding path program 1 times [2025-03-04 07:10:45,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:10:45,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1487001831] [2025-03-04 07:10:45,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:10:45,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:45,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:10:45,229 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:10:45,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 07:10:45,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-04 07:10:45,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-04 07:10:45,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:10:45,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:10:45,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 07:10:45,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:10:45,584 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-04 07:10:45,584 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:10:45,584 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:10:45,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487001831] [2025-03-04 07:10:45,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487001831] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:10:45,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:10:45,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:10:45,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191249288] [2025-03-04 07:10:45,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:10:45,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:10:45,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:10:45,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:10:45,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:10:45,587 INFO L87 Difference]: Start difference. First operand 939 states and 1192 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 07:10:45,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:10:45,624 INFO L93 Difference]: Finished difference Result 951 states and 1207 transitions. [2025-03-04 07:10:45,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:10:45,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 94 [2025-03-04 07:10:45,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:10:45,629 INFO L225 Difference]: With dead ends: 951 [2025-03-04 07:10:45,630 INFO L226 Difference]: Without dead ends: 951 [2025-03-04 07:10:45,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:10:45,630 INFO L435 NwaCegarLoop]: 319 mSDtfsCounter, 0 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:10:45,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 949 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:10:45,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2025-03-04 07:10:45,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 951. [2025-03-04 07:10:45,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 886 states have (on average 1.2516930022573363) internal successors, (1109), 899 states have internal predecessors, (1109), 48 states have call successors, (48), 13 states have call predecessors, (48), 15 states have return successors, (50), 38 states have call predecessors, (50), 44 states have call successors, (50) [2025-03-04 07:10:45,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1207 transitions. [2025-03-04 07:10:45,653 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1207 transitions. Word has length 94 [2025-03-04 07:10:45,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:10:45,653 INFO L471 AbstractCegarLoop]: Abstraction has 951 states and 1207 transitions. [2025-03-04 07:10:45,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 07:10:45,654 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1207 transitions. [2025-03-04 07:10:45,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-04 07:10:45,656 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:10:45,656 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:10:45,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 07:10:45,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:45,857 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:10:45,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:10:45,857 INFO L85 PathProgramCache]: Analyzing trace with hash -993190908, now seen corresponding path program 1 times [2025-03-04 07:10:45,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:10:45,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615705009] [2025-03-04 07:10:45,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:10:45,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:45,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:10:45,860 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:10:45,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 07:10:46,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-04 07:10:46,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-04 07:10:46,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:10:46,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:10:46,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 07:10:46,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:10:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-04 07:10:46,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:10:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-04 07:10:46,415 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:10:46,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615705009] [2025-03-04 07:10:46,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615705009] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:10:46,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:10:46,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-04 07:10:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616925629] [2025-03-04 07:10:46,416 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:10:46,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 07:10:46,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:10:46,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 07:10:46,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-04 07:10:46,420 INFO L87 Difference]: Start difference. First operand 951 states and 1207 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-04 07:10:46,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:10:46,629 INFO L93 Difference]: Finished difference Result 990 states and 1264 transitions. [2025-03-04 07:10:46,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 07:10:46,630 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 96 [2025-03-04 07:10:46,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:10:46,634 INFO L225 Difference]: With dead ends: 990 [2025-03-04 07:10:46,634 INFO L226 Difference]: Without dead ends: 990 [2025-03-04 07:10:46,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-04 07:10:46,635 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 5 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:10:46,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1260 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:10:46,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2025-03-04 07:10:46,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 981. [2025-03-04 07:10:46,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 913 states have (on average 1.2639649507119386) internal successors, (1154), 926 states have internal predecessors, (1154), 48 states have call successors, (48), 16 states have call predecessors, (48), 18 states have return successors, (53), 38 states have call predecessors, (53), 44 states have call successors, (53) [2025-03-04 07:10:46,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1255 transitions. [2025-03-04 07:10:46,656 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1255 transitions. Word has length 96 [2025-03-04 07:10:46,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:10:46,656 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1255 transitions. [2025-03-04 07:10:46,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-04 07:10:46,657 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1255 transitions. [2025-03-04 07:10:46,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-04 07:10:46,657 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:10:46,658 INFO L218 NwaCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:10:46,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-04 07:10:46,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:46,858 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:10:46,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:10:46,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1943315768, now seen corresponding path program 2 times [2025-03-04 07:10:46,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:10:46,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245191342] [2025-03-04 07:10:46,860 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 07:10:46,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:10:46,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:10:46,862 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:10:46,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 07:10:47,088 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 100 statements into 2 equivalence classes. [2025-03-04 07:11:12,091 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 100 of 100 statements. [2025-03-04 07:11:12,091 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 07:11:12,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:11:12,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 07:11:12,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:11:12,355 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-04 07:11:12,355 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:11:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-04 07:11:12,605 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:11:12,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245191342] [2025-03-04 07:11:12,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245191342] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:11:12,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:11:12,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2025-03-04 07:11:12,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612886680] [2025-03-04 07:11:12,606 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:11:12,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 07:11:12,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:11:12,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 07:11:12,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-04 07:11:12,607 INFO L87 Difference]: Start difference. First operand 981 states and 1255 transitions. Second operand has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-03-04 07:11:14,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:11:14,387 INFO L93 Difference]: Finished difference Result 3795 states and 4890 transitions. [2025-03-04 07:11:14,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-04 07:11:14,388 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 100 [2025-03-04 07:11:14,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:11:14,400 INFO L225 Difference]: With dead ends: 3795 [2025-03-04 07:11:14,400 INFO L226 Difference]: Without dead ends: 3795 [2025-03-04 07:11:14,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2025-03-04 07:11:14,401 INFO L435 NwaCegarLoop]: 1126 mSDtfsCounter, 5626 mSDsluCounter, 6411 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5657 SdHoareTripleChecker+Valid, 7537 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-04 07:11:14,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5657 Valid, 7537 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-04 07:11:14,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2025-03-04 07:11:14,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 2836. [2025-03-04 07:11:14,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2836 states, 2662 states have (on average 1.2697220135236664) internal successors, (3380), 2692 states have internal predecessors, (3380), 130 states have call successors, (130), 39 states have call predecessors, (130), 42 states have return successors, (141), 104 states have call predecessors, (141), 126 states have call successors, (141) [2025-03-04 07:11:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 3651 transitions. [2025-03-04 07:11:14,453 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 3651 transitions. Word has length 100 [2025-03-04 07:11:14,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:11:14,453 INFO L471 AbstractCegarLoop]: Abstraction has 2836 states and 3651 transitions. [2025-03-04 07:11:14,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.142857142857142) internal successors, (156), 12 states have internal predecessors, (156), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-03-04 07:11:14,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 3651 transitions. [2025-03-04 07:11:14,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-04 07:11:14,455 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:11:14,455 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:11:14,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-04 07:11:14,655 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 [2025-03-04 07:11:14,655 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:11:14,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:11:14,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2098657365, now seen corresponding path program 1 times [2025-03-04 07:11:14,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:11:14,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802093149] [2025-03-04 07:11:14,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:11:14,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:11:14,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:11:14,661 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) [2025-03-04 07:11:14,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 07:11:14,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-04 07:11:15,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-04 07:11:15,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:11:15,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:11:15,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 07:11:15,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:11:15,105 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 07:11:15,105 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 07:11:15,105 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-04 07:11:15,107 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 [2025-03-04 07:11:15,146 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 07:11:15,146 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 [2025-03-04 07:11:15,157 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-04 07:11:15,157 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:11:15,157 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:11:15,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802093149] [2025-03-04 07:11:15,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802093149] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:11:15,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:11:15,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 07:11:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92752243] [2025-03-04 07:11:15,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:11:15,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:11:15,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:11:15,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:11:15,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:11:15,158 INFO L87 Difference]: Start difference. First operand 2836 states and 3651 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 07:11:15,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:11:15,486 INFO L93 Difference]: Finished difference Result 3828 states and 4970 transitions. [2025-03-04 07:11:15,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:11:15,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 108 [2025-03-04 07:11:15,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:11:15,495 INFO L225 Difference]: With dead ends: 3828 [2025-03-04 07:11:15,495 INFO L226 Difference]: Without dead ends: 3828 [2025-03-04 07:11:15,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 07:11:15,496 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 210 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 07:11:15,496 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 892 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 07:11:15,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3828 states. [2025-03-04 07:11:15,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3828 to 2852. [2025-03-04 07:11:15,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2678 states have (on average 1.2681105302464526) internal successors, (3396), 2708 states have internal predecessors, (3396), 130 states have call successors, (130), 39 states have call predecessors, (130), 42 states have return successors, (141), 104 states have call predecessors, (141), 126 states have call successors, (141) [2025-03-04 07:11:15,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3667 transitions. [2025-03-04 07:11:15,557 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3667 transitions. Word has length 108 [2025-03-04 07:11:15,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:11:15,557 INFO L471 AbstractCegarLoop]: Abstraction has 2852 states and 3667 transitions. [2025-03-04 07:11:15,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 07:11:15,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3667 transitions. [2025-03-04 07:11:15,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-04 07:11:15,558 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:11:15,558 INFO L218 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:11:15,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-04 07:11:15,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:11:15,759 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:11:15,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:11:15,760 INFO L85 PathProgramCache]: Analyzing trace with hash 417400431, now seen corresponding path program 1 times [2025-03-04 07:11:15,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:11:15,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [980766629] [2025-03-04 07:11:15,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:11:15,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:11:15,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:11:15,762 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:11:15,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 07:11:16,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-04 07:11:16,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-04 07:11:16,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:11:16,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:11:16,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 07:11:16,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:11:16,271 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-04 07:11:16,271 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 07:11:16,420 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-04 07:11:16,420 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:11:16,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980766629] [2025-03-04 07:11:16,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980766629] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 07:11:16,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 07:11:16,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-04 07:11:16,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581588787] [2025-03-04 07:11:16,420 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 07:11:16,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 07:11:16,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:11:16,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 07:11:16,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-04 07:11:16,421 INFO L87 Difference]: Start difference. First operand 2852 states and 3667 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-04 07:11:16,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:11:16,651 INFO L93 Difference]: Finished difference Result 2912 states and 3739 transitions. [2025-03-04 07:11:16,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 07:11:16,652 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2025-03-04 07:11:16,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:11:16,658 INFO L225 Difference]: With dead ends: 2912 [2025-03-04 07:11:16,659 INFO L226 Difference]: Without dead ends: 2894 [2025-03-04 07:11:16,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-03-04 07:11:16,660 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 5 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 07:11:16,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2518 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 07:11:16,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2025-03-04 07:11:16,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2876. [2025-03-04 07:11:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2702 states have (on average 1.2701702442635086) internal successors, (3432), 2732 states have internal predecessors, (3432), 130 states have call successors, (130), 39 states have call predecessors, (130), 42 states have return successors, (135), 104 states have call predecessors, (135), 126 states have call successors, (135) [2025-03-04 07:11:16,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 3697 transitions. [2025-03-04 07:11:16,730 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 3697 transitions. Word has length 115 [2025-03-04 07:11:16,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:11:16,730 INFO L471 AbstractCegarLoop]: Abstraction has 2876 states and 3697 transitions. [2025-03-04 07:11:16,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-04 07:11:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 3697 transitions. [2025-03-04 07:11:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-03-04 07:11:16,732 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:11:16,732 INFO L218 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:11:16,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-04 07:11:16,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:11:16,933 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-04 07:11:16,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:11:16,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1025939375, now seen corresponding path program 2 times [2025-03-04 07:11:16,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:11:16,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293980243] [2025-03-04 07:11:16,934 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 07:11:16,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:11:16,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:11:16,936 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 07:11:16,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 07:11:17,202 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes.