./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/ldv-memsafety/memleaks_test5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 696e33c675918fc8350b482c3d25537e8a3aa795a76532943c9c159afade7e86 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:46:27,622 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:46:27,677 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 07:46:27,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:46:27,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:46:27,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:46:27,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:46:27,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:46:27,706 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 07:46:27,706 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 07:46:27,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:46:27,706 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:46:27,706 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:46:27,707 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:46:27,707 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 07:46:27,707 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:46:27,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:46:27,708 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:46:27,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:46:27,708 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 07:46:27,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 07:46:27,708 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:46:27,708 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:46:27,708 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:46:27,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:46:27,708 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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 696e33c675918fc8350b482c3d25537e8a3aa795a76532943c9c159afade7e86 [2025-03-04 07:46:27,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:46:27,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:46:27,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:46:27,914 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:46:27,914 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:46:27,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2025-03-04 07:46:28,990 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2d484e2f/3e6c19bdc437491484a70713762a8c25/FLAG08348b407 [2025-03-04 07:46:29,269 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:46:29,271 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2025-03-04 07:46:29,285 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2d484e2f/3e6c19bdc437491484a70713762a8c25/FLAG08348b407 [2025-03-04 07:46:29,551 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2d484e2f/3e6c19bdc437491484a70713762a8c25 [2025-03-04 07:46:29,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:46:29,555 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:46:29,556 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:46:29,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:46:29,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:46:29,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:46:29" (1/1) ... [2025-03-04 07:46:29,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503aec38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:29, skipping insertion in model container [2025-03-04 07:46:29,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:46:29" (1/1) ... [2025-03-04 07:46:29,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:46:29,801 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 07:46:29,844 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 07:46:29,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:46:29,861 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 07:46:29,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f2cc764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:29, skipping insertion in model container [2025-03-04 07:46:29,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:46:29,861 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-04 07:46:29,863 INFO L158 Benchmark]: Toolchain (without parser) took 307.02ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 108.7MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 07:46:29,863 INFO L158 Benchmark]: CDTParser took 0.90ms. Allocated memory is still 201.3MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 07:46:29,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.52ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 108.7MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 07:46:29,864 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90ms. Allocated memory is still 201.3MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.52ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 108.7MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 607]: 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/ldv-memsafety/memleaks_test5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 696e33c675918fc8350b482c3d25537e8a3aa795a76532943c9c159afade7e86 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:46:31,492 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:46:31,574 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-03-04 07:46:31,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:46:31,581 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:46:31,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:46:31,606 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:46:31,606 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:46:31,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 07:46:31,607 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 07:46:31,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:46:31,607 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:46:31,608 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:46:31,608 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:46:31,608 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:46:31,608 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:46:31,608 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:46:31,608 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:46:31,609 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:46:31,609 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:46:31,609 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 07:46:31,609 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 07:46:31,609 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 07:46:31,609 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:46:31,609 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 07:46:31,609 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 07:46:31,610 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 07:46:31,610 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:46:31,610 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:46:31,610 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:46:31,610 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:46:31,610 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:46:31,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:46:31,611 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 07:46:31,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:46:31,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:46:31,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:46:31,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:46:31,611 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 07:46:31,611 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 07:46:31,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:46:31,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:46:31,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:46:31,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:46:31,612 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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 696e33c675918fc8350b482c3d25537e8a3aa795a76532943c9c159afade7e86 [2025-03-04 07:46:31,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:46:31,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:46:31,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:46:31,842 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:46:31,842 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:46:31,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2025-03-04 07:46:33,017 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f3818577/d59adf4447be48b4bb657ddafa1882b2/FLAG002824342 [2025-03-04 07:46:33,248 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:46:33,248 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test5.i [2025-03-04 07:46:33,264 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f3818577/d59adf4447be48b4bb657ddafa1882b2/FLAG002824342 [2025-03-04 07:46:33,278 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f3818577/d59adf4447be48b4bb657ddafa1882b2 [2025-03-04 07:46:33,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:46:33,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:46:33,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:46:33,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:46:33,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:46:33,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fe9f841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33, skipping insertion in model container [2025-03-04 07:46:33,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,321 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:46:33,513 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 07:46:33,549 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 07:46:33,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:46:33,567 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-04 07:46:33,578 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:46:33,608 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 07:46:33,630 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 07:46:33,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:46:33,639 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 07:46:33,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:46:33,726 INFO L204 MainTranslator]: Completed translation [2025-03-04 07:46:33,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33 WrapperNode [2025-03-04 07:46:33,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:46:33,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 07:46:33,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 07:46:33,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 07:46:33,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,767 INFO L138 Inliner]: procedures = 167, calls = 71, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 25 [2025-03-04 07:46:33,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 07:46:33,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 07:46:33,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 07:46:33,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 07:46:33,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,790 INFO L175 MemorySlicer]: Split 2 memory accesses to 2 slices as follows [2, 0]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 0 writes are split as follows [0, 0]. [2025-03-04 07:46:33,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,796 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 07:46:33,806 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 07:46:33,806 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 07:46:33,806 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 07:46:33,807 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (1/1) ... [2025-03-04 07:46:33,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:46:33,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:46:33,827 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 07:46:33,829 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 07:46:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-03-04 07:46:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-03-04 07:46:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 07:46:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 07:46:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 07:46:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 07:46:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 07:46:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 07:46:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 07:46:33,927 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 07:46:33,928 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 07:46:33,959 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L527: havoc #t~malloc12.base, #t~malloc12.offset; [2025-03-04 07:46:34,018 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2025-03-04 07:46:34,019 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 07:46:34,024 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 07:46:34,025 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 07:46:34,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:46:34 BoogieIcfgContainer [2025-03-04 07:46:34,025 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 07:46:34,027 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 07:46:34,027 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 07:46:34,030 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 07:46:34,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 07:46:33" (1/3) ... [2025-03-04 07:46:34,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ac6573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:46:34, skipping insertion in model container [2025-03-04 07:46:34,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:46:33" (2/3) ... [2025-03-04 07:46:34,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ac6573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:46:34, skipping insertion in model container [2025-03-04 07:46:34,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:46:34" (3/3) ... [2025-03-04 07:46:34,032 INFO L128 eAbstractionObserver]: Analyzing ICFG memleaks_test5.i [2025-03-04 07:46:34,042 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 07:46:34,043 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG memleaks_test5.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-04 07:46:34,068 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 07:46:34,075 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;@1013e526, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 07:46:34,075 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-04 07:46:34,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:34,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-04 07:46:34,082 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:46:34,083 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:46:34,083 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-03-04 07:46:34,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:46:34,086 INFO L85 PathProgramCache]: Analyzing trace with hash 948962888, now seen corresponding path program 1 times [2025-03-04 07:46:34,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:46:34,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250294097] [2025-03-04 07:46:34,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:46:34,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:46:34,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:46:34,095 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 07:46:34,095 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 07:46:34,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 07:46:34,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 07:46:34,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:46:34,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:46:34,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 07:46:34,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:46:34,245 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 07:46:34,245 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:46:34,246 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:46:34,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250294097] [2025-03-04 07:46:34,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250294097] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:46:34,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:46:34,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:46:34,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597763618] [2025-03-04 07:46:34,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:46:34,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:46:34,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:46:34,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:46:34,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:46:34,270 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:34,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:46:34,296 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2025-03-04 07:46:34,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:46:34,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2025-03-04 07:46:34,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:46:34,302 INFO L225 Difference]: With dead ends: 21 [2025-03-04 07:46:34,302 INFO L226 Difference]: Without dead ends: 19 [2025-03-04 07:46:34,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:46:34,307 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:46:34,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:46:34,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-03-04 07:46:34,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2025-03-04 07:46:34,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:34,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2025-03-04 07:46:34,326 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2025-03-04 07:46:34,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:46:34,326 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2025-03-04 07:46:34,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:34,326 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2025-03-04 07:46:34,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 07:46:34,326 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:46:34,326 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:46:34,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 07:46:34,527 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 07:46:34,527 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-03-04 07:46:34,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:46:34,527 INFO L85 PathProgramCache]: Analyzing trace with hash -646921563, now seen corresponding path program 1 times [2025-03-04 07:46:34,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:46:34,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [353662671] [2025-03-04 07:46:34,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:46:34,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:46:34,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:46:34,531 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 07:46:34,532 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 07:46:34,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 07:46:34,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 07:46:34,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:46:34,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:46:34,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 07:46:34,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:46:34,616 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 07:46:34,617 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:46:34,617 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:46:34,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353662671] [2025-03-04 07:46:34,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353662671] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:46:34,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:46:34,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:46:34,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774675640] [2025-03-04 07:46:34,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:46:34,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:46:34,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:46:34,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:46:34,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:46:34,618 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:34,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:46:34,672 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2025-03-04 07:46:34,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:46:34,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-03-04 07:46:34,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:46:34,673 INFO L225 Difference]: With dead ends: 26 [2025-03-04 07:46:34,673 INFO L226 Difference]: Without dead ends: 26 [2025-03-04 07:46:34,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:46:34,673 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:46:34,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:46:34,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-03-04 07:46:34,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-03-04 07:46:34,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 07:46:34,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2025-03-04 07:46:34,676 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 12 [2025-03-04 07:46:34,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:46:34,676 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2025-03-04 07:46:34,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:34,676 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2025-03-04 07:46:34,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 07:46:34,677 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:46:34,677 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:46:34,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 07:46:34,877 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 07:46:34,877 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-03-04 07:46:34,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:46:34,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1095888772, now seen corresponding path program 1 times [2025-03-04 07:46:34,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:46:34,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2083507992] [2025-03-04 07:46:34,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:46:34,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:46:34,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:46:34,880 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 07:46:34,881 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 07:46:34,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 07:46:34,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 07:46:34,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:46:34,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:46:34,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 07:46:34,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:46:34,955 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 07:46:34,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:46:34,956 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:46:34,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083507992] [2025-03-04 07:46:34,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083507992] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:46:34,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:46:34,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 07:46:34,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570192217] [2025-03-04 07:46:34,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:46:34,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 07:46:34,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:46:34,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 07:46:34,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-04 07:46:34,957 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:34,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:46:34,994 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2025-03-04 07:46:34,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 07:46:34,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-03-04 07:46:34,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:46:34,995 INFO L225 Difference]: With dead ends: 24 [2025-03-04 07:46:34,995 INFO L226 Difference]: Without dead ends: 23 [2025-03-04 07:46:34,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-04 07:46:34,995 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:46:34,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 104 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:46:34,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-03-04 07:46:34,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-03-04 07:46:34,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 07:46:34,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2025-03-04 07:46:34,998 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 12 [2025-03-04 07:46:34,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:46:34,998 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2025-03-04 07:46:34,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:34,998 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2025-03-04 07:46:34,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-04 07:46:34,998 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:46:34,998 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:46:35,009 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 07:46:35,203 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 07:46:35,203 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-03-04 07:46:35,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:46:35,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1420292864, now seen corresponding path program 1 times [2025-03-04 07:46:35,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:46:35,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1814092958] [2025-03-04 07:46:35,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:46:35,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:46:35,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:46:35,206 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 07:46:35,206 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 07:46:35,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 07:46:35,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 07:46:35,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:46:35,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:46:35,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 07:46:35,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:46:35,279 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 07:46:35,279 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:46:35,279 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:46:35,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814092958] [2025-03-04 07:46:35,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814092958] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:46:35,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:46:35,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 07:46:35,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273881326] [2025-03-04 07:46:35,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:46:35,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:46:35,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:46:35,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:46:35,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:46:35,280 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:35,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:46:35,302 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2025-03-04 07:46:35,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:46:35,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2025-03-04 07:46:35,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:46:35,303 INFO L225 Difference]: With dead ends: 23 [2025-03-04 07:46:35,303 INFO L226 Difference]: Without dead ends: 23 [2025-03-04 07:46:35,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:46:35,304 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:46:35,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 58 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:46:35,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-03-04 07:46:35,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-03-04 07:46:35,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 07:46:35,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2025-03-04 07:46:35,306 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 13 [2025-03-04 07:46:35,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:46:35,306 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2025-03-04 07:46:35,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:35,307 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2025-03-04 07:46:35,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-04 07:46:35,307 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:46:35,307 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:46:35,313 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 07:46:35,511 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 07:46:35,511 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-03-04 07:46:35,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:46:35,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1420268006, now seen corresponding path program 1 times [2025-03-04 07:46:35,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:46:35,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568316627] [2025-03-04 07:46:35,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:46:35,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:46:35,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:46:35,513 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 07:46:35,514 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 07:46:35,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 07:46:35,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 07:46:35,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:46:35,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:46:35,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 07:46:35,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:46:35,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-03-04 07:46:35,630 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 07:46:35,630 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:46:35,631 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:46:35,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568316627] [2025-03-04 07:46:35,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568316627] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:46:35,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:46:35,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:46:35,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76972307] [2025-03-04 07:46:35,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:46:35,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:46:35,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:46:35,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:46:35,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:46:35,632 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:35,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:46:35,674 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2025-03-04 07:46:35,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:46:35,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2025-03-04 07:46:35,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:46:35,675 INFO L225 Difference]: With dead ends: 22 [2025-03-04 07:46:35,675 INFO L226 Difference]: Without dead ends: 22 [2025-03-04 07:46:35,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:46:35,676 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:46:35,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:46:35,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-03-04 07:46:35,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2025-03-04 07:46:35,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 07:46:35,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2025-03-04 07:46:35,678 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2025-03-04 07:46:35,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:46:35,678 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2025-03-04 07:46:35,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:35,678 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2025-03-04 07:46:35,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-04 07:46:35,678 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:46:35,679 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:46:35,685 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 07:46:35,883 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 07:46:35,883 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-03-04 07:46:35,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:46:35,883 INFO L85 PathProgramCache]: Analyzing trace with hash -387161599, now seen corresponding path program 1 times [2025-03-04 07:46:35,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:46:35,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [321123041] [2025-03-04 07:46:35,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:46:35,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:46:35,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:46:35,885 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 07:46:35,887 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 07:46:35,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 07:46:35,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 07:46:35,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:46:35,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:46:35,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 07:46:35,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:46:35,954 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 07:46:35,954 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:46:35,954 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:46:35,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321123041] [2025-03-04 07:46:35,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321123041] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:46:35,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:46:35,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 07:46:35,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929318207] [2025-03-04 07:46:35,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:46:35,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 07:46:35,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:46:35,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 07:46:35,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 07:46:35,955 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:35,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:46:35,969 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2025-03-04 07:46:35,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 07:46:35,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2025-03-04 07:46:35,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:46:35,970 INFO L225 Difference]: With dead ends: 25 [2025-03-04 07:46:35,970 INFO L226 Difference]: Without dead ends: 17 [2025-03-04 07:46:35,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 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 07:46:35,971 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:46:35,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 07:46:35,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-03-04 07:46:35,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-03-04 07:46:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:35,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2025-03-04 07:46:35,973 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 13 [2025-03-04 07:46:35,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:46:35,973 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2025-03-04 07:46:35,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:35,974 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2025-03-04 07:46:35,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-04 07:46:35,974 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 07:46:35,974 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:46:35,981 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 07:46:36,174 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 07:46:36,175 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2025-03-04 07:46:36,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:46:36,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1481311970, now seen corresponding path program 1 times [2025-03-04 07:46:36,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 07:46:36,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [252231617] [2025-03-04 07:46:36,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:46:36,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 07:46:36,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:46:36,177 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 07:46:36,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 07:46:36,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 07:46:36,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 07:46:36,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:46:36,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:46:36,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-04 07:46:36,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 07:46:36,325 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_g5_~p#1.base_11| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_g5_~p#1.base_11| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_g5_~p#1.base_11|)))) is different from true [2025-03-04 07:46:36,341 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 07:46:36,341 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 07:46:36,341 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 07:46:36,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252231617] [2025-03-04 07:46:36,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252231617] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:46:36,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:46:36,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 07:46:36,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710733040] [2025-03-04 07:46:36,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:46:36,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 07:46:36,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 07:46:36,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 07:46:36,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=44, Unknown=1, NotChecked=12, Total=72 [2025-03-04 07:46:36,342 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 9 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:36,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 07:46:36,409 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2025-03-04 07:46:36,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 07:46:36,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2025-03-04 07:46:36,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 07:46:36,409 INFO L225 Difference]: With dead ends: 16 [2025-03-04 07:46:36,409 INFO L226 Difference]: Without dead ends: 0 [2025-03-04 07:46:36,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=57, Unknown=1, NotChecked=14, Total=90 [2025-03-04 07:46:36,410 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 07:46:36,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 32 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 12 Unchecked, 0.0s Time] [2025-03-04 07:46:36,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-04 07:46:36,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-04 07:46:36,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:46:36,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-04 07:46:36,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2025-03-04 07:46:36,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 07:46:36,411 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 07:46:36,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 07:46:36,411 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-04 07:46:36,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-04 07:46:36,413 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-03-04 07:46:36,413 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2025-03-04 07:46:36,413 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2025-03-04 07:46:36,413 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (0 of 4 remaining) [2025-03-04 07:46:36,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-04 07:46:36,613 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 07:46:36,616 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:46:36,617 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 07:46:36,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 07:46:36 BoogieIcfgContainer [2025-03-04 07:46:36,619 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 07:46:36,619 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 07:46:36,619 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 07:46:36,619 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 07:46:36,619 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:46:34" (3/4) ... [2025-03-04 07:46:36,621 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 07:46:36,624 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2025-03-04 07:46:36,626 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-04 07:46:36,626 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-04 07:46:36,626 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 07:46:36,670 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 07:46:36,670 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 07:46:36,670 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 07:46:36,671 INFO L158 Benchmark]: Toolchain (without parser) took 3389.50ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 57.5MB in the end (delta: 33.4MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2025-03-04 07:46:36,671 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 83.9MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 07:46:36,671 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.99ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 63.6MB in the end (delta: 27.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 07:46:36,671 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.90ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 61.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 07:46:36,671 INFO L158 Benchmark]: Boogie Preprocessor took 36.02ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 60.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 07:46:36,671 INFO L158 Benchmark]: IcfgBuilder took 218.99ms. Allocated memory is still 117.4MB. Free memory was 60.3MB in the beginning and 48.6MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 07:46:36,672 INFO L158 Benchmark]: TraceAbstraction took 2591.99ms. Allocated memory is still 117.4MB. Free memory was 48.0MB in the beginning and 62.7MB in the end (delta: -14.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 07:46:36,672 INFO L158 Benchmark]: Witness Printer took 51.47ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 57.5MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 07:46:36,672 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 83.9MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.99ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 63.6MB in the end (delta: 27.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.90ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 61.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.02ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 60.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 218.99ms. Allocated memory is still 117.4MB. Free memory was 60.3MB in the beginning and 48.6MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2591.99ms. Allocated memory is still 117.4MB. Free memory was 48.0MB in the beginning and 62.7MB in the end (delta: -14.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 51.47ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 57.5MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 770]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 763]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 763]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 763]: free always succeeds For all program executions holds that free always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 403 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 12 IncrementalHoareTripleChecker+Unchecked, 298 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 266 IncrementalHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 105 mSDtfsCounter, 266 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 83 ConstructedInterpolants, 3 QuantifiedInterpolants, 353 SizeOfPredicates, 1 NumberOfNonLiveVariables, 314 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 07:46:36,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE