./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test9_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 35987657 Calling Ultimate with: /usr/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_1.5.800.v20200727-1323.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_test9_1.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.graphml --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 e65360727cbd68c581cd6e4ddec6424d5deee07e47cefb70d4b6b7d40f9b97f0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 17:30:05,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 17:30:05,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 17:30:05,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 17:30:05,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 17:30:05,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 17:30:05,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 17:30:05,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 17:30:05,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 17:30:05,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 17:30:05,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 17:30:05,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 17:30:05,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 17:30:05,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 17:30:05,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 17:30:05,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 17:30:05,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 17:30:05,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 17:30:05,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 17:30:05,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 17:30:05,346 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 17:30:05,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 17:30:05,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 17:30:05,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 17:30:05,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 17:30:05,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 17:30:05,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 17:30:05,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 17:30:05,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 17:30:05,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 17:30:05,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 17:30:05,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 17:30:05,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 17:30:05,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 17:30:05,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 17:30:05,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 17:30:05,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 17:30:05,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 17:30:05,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 17:30:05,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 17:30:05,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 17:30:05,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 17:30:05,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-21 17:30:05,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 17:30:05,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 17:30:05,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 17:30:05,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 17:30:05,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 17:30:05,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 17:30:05,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 17:30:05,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 17:30:05,400 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 17:30:05,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 17:30:05,401 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 17:30:05,401 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-21 17:30:05,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 17:30:05,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 17:30:05,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 17:30:05,402 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-21 17:30:05,403 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-21 17:30:05,403 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-21 17:30:05,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 17:30:05,403 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 17:30:05,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 17:30:05,404 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 17:30:05,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 17:30:05,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 17:30:05,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 17:30:05,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:30:05,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 17:30:05,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 17:30:05,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 17:30:05,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 17:30:05,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e65360727cbd68c581cd6e4ddec6424d5deee07e47cefb70d4b6b7d40f9b97f0 [2022-07-21 17:30:05,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 17:30:05,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 17:30:05,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 17:30:05,755 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 17:30:05,759 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 17:30:05,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test9_1.i [2022-07-21 17:30:05,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04c3248df/7843c41e54b04e01a303a41c065c1f7a/FLAG9a79b0b5a [2022-07-21 17:30:06,311 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 17:30:06,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test9_1.i [2022-07-21 17:30:06,327 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04c3248df/7843c41e54b04e01a303a41c065c1f7a/FLAG9a79b0b5a [2022-07-21 17:30:06,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04c3248df/7843c41e54b04e01a303a41c065c1f7a [2022-07-21 17:30:06,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 17:30:06,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 17:30:06,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 17:30:06,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 17:30:06,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 17:30:06,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:30:06" (1/1) ... [2022-07-21 17:30:06,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a91d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:06, skipping insertion in model container [2022-07-21 17:30:06,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:30:06" (1/1) ... [2022-07-21 17:30:06,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 17:30:06,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:30:07,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:30:07,120 ERROR L326 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) [2022-07-21 17:30:07,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5d87cefc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:07, skipping insertion in model container [2022-07-21 17:30:07,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 17:30:07,122 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-07-21 17:30:07,124 INFO L158 Benchmark]: Toolchain (without parser) took 463.17ms. Allocated memory is still 60.8MB. Free memory was 37.9MB in the beginning and 41.0MB in the end (delta: -3.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 17:30:07,125 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:30:07,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.72ms. Allocated memory is still 60.8MB. Free memory was 37.7MB in the beginning and 41.0MB in the end (delta: -3.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 17:30:07,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 459.72ms. Allocated memory is still 60.8MB. Free memory was 37.7MB in the beginning and 41.0MB in the end (delta: -3.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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: /usr/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_1.5.800.v20200727-1323.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_test9_1.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.graphml --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 e65360727cbd68c581cd6e4ddec6424d5deee07e47cefb70d4b6b7d40f9b97f0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 17:30:08,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 17:30:08,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 17:30:08,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 17:30:08,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 17:30:08,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 17:30:08,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 17:30:08,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 17:30:08,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 17:30:08,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 17:30:08,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 17:30:08,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 17:30:08,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 17:30:08,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 17:30:08,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 17:30:08,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 17:30:08,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 17:30:08,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 17:30:08,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 17:30:08,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 17:30:08,947 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 17:30:08,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 17:30:08,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 17:30:08,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 17:30:08,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 17:30:08,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 17:30:08,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 17:30:08,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 17:30:08,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 17:30:08,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 17:30:08,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 17:30:08,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 17:30:08,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 17:30:08,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 17:30:08,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 17:30:08,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 17:30:08,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 17:30:08,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 17:30:08,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 17:30:08,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 17:30:08,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 17:30:08,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 17:30:08,974 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-07-21 17:30:09,008 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 17:30:09,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 17:30:09,009 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 17:30:09,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 17:30:09,010 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 17:30:09,010 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 17:30:09,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 17:30:09,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 17:30:09,012 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 17:30:09,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 17:30:09,013 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 17:30:09,013 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-21 17:30:09,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 17:30:09,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 17:30:09,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 17:30:09,019 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-21 17:30:09,019 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-21 17:30:09,020 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-21 17:30:09,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 17:30:09,020 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 17:30:09,020 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 17:30:09,020 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 17:30:09,021 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 17:30:09,021 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 17:30:09,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 17:30:09,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 17:30:09,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 17:30:09,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:30:09,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 17:30:09,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 17:30:09,023 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 17:30:09,023 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 17:30:09,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 17:30:09,023 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e65360727cbd68c581cd6e4ddec6424d5deee07e47cefb70d4b6b7d40f9b97f0 [2022-07-21 17:30:09,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 17:30:09,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 17:30:09,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 17:30:09,414 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 17:30:09,415 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 17:30:09,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test9_1.i [2022-07-21 17:30:09,482 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b56bc1dce/31338362a75246c4b185782dc9c94eed/FLAGa9f46c708 [2022-07-21 17:30:10,025 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 17:30:10,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test9_1.i [2022-07-21 17:30:10,048 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b56bc1dce/31338362a75246c4b185782dc9c94eed/FLAGa9f46c708 [2022-07-21 17:30:10,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b56bc1dce/31338362a75246c4b185782dc9c94eed [2022-07-21 17:30:10,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 17:30:10,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 17:30:10,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 17:30:10,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 17:30:10,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 17:30:10,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:30:10" (1/1) ... [2022-07-21 17:30:10,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e20be7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:10, skipping insertion in model container [2022-07-21 17:30:10,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:30:10" (1/1) ... [2022-07-21 17:30:10,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 17:30:10,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:30:10,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:30:10,827 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 17:30:10,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:30:10,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:30:10,916 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 17:30:10,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:30:11,017 INFO L208 MainTranslator]: Completed translation [2022-07-21 17:30:11,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:11 WrapperNode [2022-07-21 17:30:11,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 17:30:11,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 17:30:11,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 17:30:11,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 17:30:11,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:11" (1/1) ... [2022-07-21 17:30:11,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:11" (1/1) ... [2022-07-21 17:30:11,092 INFO L137 Inliner]: procedures = 167, calls = 71, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 27 [2022-07-21 17:30:11,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 17:30:11,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 17:30:11,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 17:30:11,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 17:30:11,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:11" (1/1) ... [2022-07-21 17:30:11,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:11" (1/1) ... [2022-07-21 17:30:11,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:11" (1/1) ... [2022-07-21 17:30:11,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:11" (1/1) ... [2022-07-21 17:30:11,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:11" (1/1) ... [2022-07-21 17:30:11,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:11" (1/1) ... [2022-07-21 17:30:11,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:11" (1/1) ... [2022-07-21 17:30:11,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 17:30:11,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 17:30:11,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 17:30:11,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 17:30:11,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:11" (1/1) ... [2022-07-21 17:30:11,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:30:11,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 17:30:11,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 17:30:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 17:30:11,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 17:30:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 17:30:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 17:30:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 17:30:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 17:30:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 17:30:11,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 17:30:11,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 17:30:11,366 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 17:30:11,367 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 17:30:11,470 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 17:30:11,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 17:30:11,475 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 17:30:11,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:30:11 BoogieIcfgContainer [2022-07-21 17:30:11,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 17:30:11,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 17:30:11,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 17:30:11,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 17:30:11,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:30:10" (1/3) ... [2022-07-21 17:30:11,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558e98f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:30:11, skipping insertion in model container [2022-07-21 17:30:11,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:30:11" (2/3) ... [2022-07-21 17:30:11,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558e98f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:30:11, skipping insertion in model container [2022-07-21 17:30:11,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:30:11" (3/3) ... [2022-07-21 17:30:11,485 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test9_1.i [2022-07-21 17:30:11,498 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 17:30:11,499 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-21 17:30:11,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 17:30:11,542 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5a1cf133, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5cd1089b [2022-07-21 17:30:11,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 17:30:11,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 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) [2022-07-21 17:30:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-21 17:30:11,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:30:11,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:30:11,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:30:11,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:30:11,565 INFO L85 PathProgramCache]: Analyzing trace with hash -2120418525, now seen corresponding path program 1 times [2022-07-21 17:30:11,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:30:11,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133865513] [2022-07-21 17:30:11,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:30:11,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:30:11,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:30:11,583 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:30:11,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 17:30:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:30:11,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 17:30:11,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:30:11,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 17:30:11,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:30:11,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:30:11,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133865513] [2022-07-21 17:30:11,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133865513] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:30:11,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:30:11,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 17:30:11,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682090269] [2022-07-21 17:30:11,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:30:11,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 17:30:11,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:30:11,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 17:30:11,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 17:30:11,786 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 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 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:30:11,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:30:11,814 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-07-21 17:30:11,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 17:30:11,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-07-21 17:30:11,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:30:11,823 INFO L225 Difference]: With dead ends: 16 [2022-07-21 17:30:11,823 INFO L226 Difference]: Without dead ends: 14 [2022-07-21 17:30:11,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 17:30:11,828 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:30:11,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 29 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:30:11,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-21 17:30:11,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-21 17:30:11,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-07-21 17:30:11,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-07-21 17:30:11,856 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2022-07-21 17:30:11,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:30:11,856 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-07-21 17:30:11,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 17:30:11,857 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-07-21 17:30:11,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-21 17:30:11,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:30:11,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:30:11,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 17:30:12,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:30:12,059 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:30:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:30:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1907394810, now seen corresponding path program 1 times [2022-07-21 17:30:12,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:30:12,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600647488] [2022-07-21 17:30:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:30:12,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:30:12,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:30:12,063 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:30:12,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 17:30:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 17:30:12,175 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 17:30:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 17:30:12,237 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-21 17:30:12,237 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 17:30:12,238 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2022-07-21 17:30:12,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2022-07-21 17:30:12,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2022-07-21 17:30:12,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (0 of 4 remaining) [2022-07-21 17:30:12,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-21 17:30:12,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:30:12,460 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 17:30:12,463 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 17:30:12,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:30:12 BoogieIcfgContainer [2022-07-21 17:30:12,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 17:30:12,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 17:30:12,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 17:30:12,486 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 17:30:12,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:30:11" (3/4) ... [2022-07-21 17:30:12,489 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 17:30:12,490 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 17:30:12,491 INFO L158 Benchmark]: Toolchain (without parser) took 2150.52ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 35.6MB in the beginning and 51.6MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:30:12,491 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 52.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:30:12,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 676.02ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 35.4MB in the beginning and 36.7MB in the end (delta: -1.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 17:30:12,492 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.34ms. Allocated memory is still 71.3MB. Free memory was 36.5MB in the beginning and 52.3MB in the end (delta: -15.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-07-21 17:30:12,493 INFO L158 Benchmark]: Boogie Preprocessor took 47.30ms. Allocated memory is still 71.3MB. Free memory was 52.3MB in the beginning and 51.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 17:30:12,493 INFO L158 Benchmark]: RCFGBuilder took 335.56ms. Allocated memory is still 71.3MB. Free memory was 50.7MB in the beginning and 40.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 17:30:12,493 INFO L158 Benchmark]: TraceAbstraction took 1006.49ms. Allocated memory is still 71.3MB. Free memory was 40.3MB in the beginning and 52.0MB in the end (delta: -11.7MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-07-21 17:30:12,494 INFO L158 Benchmark]: Witness Printer took 3.92ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 51.6MB in the end (delta: 387.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:30:12,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 52.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 676.02ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 35.4MB in the beginning and 36.7MB in the end (delta: -1.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.34ms. Allocated memory is still 71.3MB. Free memory was 36.5MB in the beginning and 52.3MB in the end (delta: -15.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.30ms. Allocated memory is still 71.3MB. Free memory was 52.3MB in the beginning and 51.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 335.56ms. Allocated memory is still 71.3MB. Free memory was 50.7MB in the beginning and 40.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1006.49ms. Allocated memory is still 71.3MB. Free memory was 40.3MB in the beginning and 52.0MB in the end (delta: -11.7MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 3.92ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 51.6MB in the end (delta: 387.5kB). 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 - UnprovableResult [Line: 772]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 772. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] int *a9; VAL [a9={0:0}, ldv_global_msg_list={1:0}] [L773] CALL entry_point() [L766] CALL, EXPR probe_9_2() [L759] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, a9={0:0}, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L759] RET, EXPR ldv_malloc(sizeof(int)) VAL [a9={0:0}, ldv_global_msg_list={1:0}, ldv_malloc(sizeof(int))={2:0}] [L759] a9 = (int *)ldv_malloc(sizeof(int)) [L760] return - -3; VAL [\result=3, a9={2:0}, ldv_global_msg_list={1:0}] [L766] RET, EXPR probe_9_2() [L766] int ret = probe_9_2(); [L767] COND FALSE !(ret==0) VAL [a9={2:0}, ldv_global_msg_list={1:0}, ret=3] [L770] a9 = 0 VAL [a9={0:0}, ldv_global_msg_list={1:0}, ret=3] [L773] RET entry_point() - UnprovableResult [Line: 763]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 1 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-21 17:30:12,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample