./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.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_test3-2.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 b68a60a1004db041631656acc5775ad13321e46c020cb1a181ddf112036ec7ab --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 17:29:13,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 17:29:13,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 17:29:13,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 17:29:13,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 17:29:13,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 17:29:13,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 17:29:13,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 17:29:13,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 17:29:13,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 17:29:13,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 17:29:13,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 17:29:13,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 17:29:13,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 17:29:13,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 17:29:13,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 17:29:13,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 17:29:13,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 17:29:13,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 17:29:13,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 17:29:13,228 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 17:29:13,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 17:29:13,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 17:29:13,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 17:29:13,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 17:29:13,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 17:29:13,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 17:29:13,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 17:29:13,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 17:29:13,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 17:29:13,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 17:29:13,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 17:29:13,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 17:29:13,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 17:29:13,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 17:29:13,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 17:29:13,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 17:29:13,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 17:29:13,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 17:29:13,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 17:29:13,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 17:29:13,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 17:29:13,256 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-21 17:29:13,282 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 17:29:13,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 17:29:13,283 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 17:29:13,283 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 17:29:13,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 17:29:13,284 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 17:29:13,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 17:29:13,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 17:29:13,285 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 17:29:13,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 17:29:13,286 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 17:29:13,286 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-21 17:29:13,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 17:29:13,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 17:29:13,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 17:29:13,286 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-21 17:29:13,287 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-21 17:29:13,287 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-21 17:29:13,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 17:29:13,287 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 17:29:13,287 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 17:29:13,287 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 17:29:13,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 17:29:13,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 17:29:13,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 17:29:13,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:29:13,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 17:29:13,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 17:29:13,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 17:29:13,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 17:29:13,289 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b68a60a1004db041631656acc5775ad13321e46c020cb1a181ddf112036ec7ab [2022-07-21 17:29:13,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 17:29:13,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 17:29:13,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 17:29:13,577 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 17:29:13,578 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 17:29:13,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2022-07-21 17:29:13,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ced61f0/760d63ea788c44c0baf02767f45a3b2f/FLAG6eeb6afee [2022-07-21 17:29:14,108 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 17:29:14,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2022-07-21 17:29:14,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ced61f0/760d63ea788c44c0baf02767f45a3b2f/FLAG6eeb6afee [2022-07-21 17:29:14,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ced61f0/760d63ea788c44c0baf02767f45a3b2f [2022-07-21 17:29:14,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 17:29:14,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 17:29:14,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 17:29:14,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 17:29:14,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 17:29:14,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:29:14" (1/1) ... [2022-07-21 17:29:14,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33e2fa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:14, skipping insertion in model container [2022-07-21 17:29:14,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:29:14" (1/1) ... [2022-07-21 17:29:14,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 17:29:14,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:29:14,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:29:14,946 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 17:29:14,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b6e8c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:14, skipping insertion in model container [2022-07-21 17:29:14,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 17:29:14,948 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-07-21 17:29:14,949 INFO L158 Benchmark]: Toolchain (without parser) took 343.27ms. Allocated memory is still 65.0MB. Free memory was 43.1MB in the beginning and 43.9MB in the end (delta: -731.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 17:29:14,950 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:29:14,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.50ms. Allocated memory is still 65.0MB. Free memory was 43.0MB in the beginning and 43.9MB in the end (delta: -882.0kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 17:29:14,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.50ms. Allocated memory is still 65.0MB. Free memory was 43.0MB in the beginning and 43.9MB in the end (delta: -882.0kB). Peak memory consumption was 10.5MB. 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_test3-2.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 b68a60a1004db041631656acc5775ad13321e46c020cb1a181ddf112036ec7ab --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 17:29:16,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 17:29:16,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 17:29:16,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 17:29:16,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 17:29:16,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 17:29:16,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 17:29:16,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 17:29:16,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 17:29:16,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 17:29:16,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 17:29:16,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 17:29:16,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 17:29:16,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 17:29:16,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 17:29:16,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 17:29:16,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 17:29:16,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 17:29:16,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 17:29:16,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 17:29:16,448 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 17:29:16,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 17:29:16,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 17:29:16,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 17:29:16,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 17:29:16,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 17:29:16,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 17:29:16,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 17:29:16,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 17:29:16,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 17:29:16,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 17:29:16,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 17:29:16,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 17:29:16,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 17:29:16,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 17:29:16,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 17:29:16,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 17:29:16,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 17:29:16,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 17:29:16,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 17:29:16,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 17:29:16,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 17:29:16,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-07-21 17:29:16,502 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 17:29:16,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 17:29:16,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 17:29:16,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 17:29:16,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 17:29:16,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 17:29:16,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 17:29:16,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 17:29:16,505 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 17:29:16,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 17:29:16,506 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 17:29:16,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-21 17:29:16,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 17:29:16,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 17:29:16,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 17:29:16,507 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-21 17:29:16,507 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-21 17:29:16,507 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-21 17:29:16,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 17:29:16,507 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 17:29:16,508 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 17:29:16,508 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 17:29:16,508 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 17:29:16,508 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 17:29:16,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 17:29:16,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 17:29:16,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 17:29:16,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:29:16,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 17:29:16,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 17:29:16,509 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 17:29:16,510 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 17:29:16,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 17:29:16,510 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b68a60a1004db041631656acc5775ad13321e46c020cb1a181ddf112036ec7ab [2022-07-21 17:29:16,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 17:29:16,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 17:29:16,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 17:29:16,784 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 17:29:16,784 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 17:29:16,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2022-07-21 17:29:16,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34daf4762/987a4eb56fdf44a08582ee5a9f5466f4/FLAGea8fcd9b7 [2022-07-21 17:29:17,260 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 17:29:17,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2022-07-21 17:29:17,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34daf4762/987a4eb56fdf44a08582ee5a9f5466f4/FLAGea8fcd9b7 [2022-07-21 17:29:17,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34daf4762/987a4eb56fdf44a08582ee5a9f5466f4 [2022-07-21 17:29:17,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 17:29:17,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 17:29:17,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 17:29:17,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 17:29:17,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 17:29:17,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:29:17" (1/1) ... [2022-07-21 17:29:17,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d40d1d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17, skipping insertion in model container [2022-07-21 17:29:17,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:29:17" (1/1) ... [2022-07-21 17:29:17,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 17:29:17,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:29:17,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:29:17,691 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 17:29:17,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 17:29:17,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:29:17,763 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 17:29:17,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 17:29:17,833 INFO L208 MainTranslator]: Completed translation [2022-07-21 17:29:17,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17 WrapperNode [2022-07-21 17:29:17,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 17:29:17,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 17:29:17,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 17:29:17,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 17:29:17,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17" (1/1) ... [2022-07-21 17:29:17,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17" (1/1) ... [2022-07-21 17:29:17,887 INFO L137 Inliner]: procedures = 166, calls = 70, calls flagged for inlining = 22, calls inlined = 4, statements flattened = 23 [2022-07-21 17:29:17,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 17:29:17,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 17:29:17,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 17:29:17,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 17:29:17,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17" (1/1) ... [2022-07-21 17:29:17,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17" (1/1) ... [2022-07-21 17:29:17,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17" (1/1) ... [2022-07-21 17:29:17,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17" (1/1) ... [2022-07-21 17:29:17,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17" (1/1) ... [2022-07-21 17:29:17,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17" (1/1) ... [2022-07-21 17:29:17,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17" (1/1) ... [2022-07-21 17:29:17,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 17:29:17,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 17:29:17,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 17:29:17,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 17:29:17,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17" (1/1) ... [2022-07-21 17:29:17,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 17:29:17,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 17:29:17,937 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 17:29:17,955 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 17:29:17,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 17:29:17,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 17:29:17,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 17:29:17,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 17:29:17,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 17:29:17,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 17:29:17,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 17:29:17,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 17:29:18,028 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 17:29:18,030 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 17:29:18,105 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 17:29:18,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 17:29:18,109 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 17:29:18,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:29:18 BoogieIcfgContainer [2022-07-21 17:29:18,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 17:29:18,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 17:29:18,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 17:29:18,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 17:29:18,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:29:17" (1/3) ... [2022-07-21 17:29:18,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f36a49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:29:18, skipping insertion in model container [2022-07-21 17:29:18,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:29:17" (2/3) ... [2022-07-21 17:29:18,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f36a49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:29:18, skipping insertion in model container [2022-07-21 17:29:18,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:29:18" (3/3) ... [2022-07-21 17:29:18,115 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2022-07-21 17:29:18,124 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 17:29:18,124 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-21 17:29:18,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 17:29:18,157 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@4a3666da, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@51b19c23 [2022-07-21 17:29:18,157 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 17:29:18,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 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 17:29:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-21 17:29:18,166 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:29:18,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:29:18,173 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 17:29:18,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:29:18,180 INFO L85 PathProgramCache]: Analyzing trace with hash 810737947, now seen corresponding path program 1 times [2022-07-21 17:29:18,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:29:18,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883543508] [2022-07-21 17:29:18,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:29:18,188 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:29:18,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:29:18,189 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 17:29:18,190 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 17:29:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:29:18,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 17:29:18,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:29:18,313 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 17:29:18,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:29:18,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:29:18,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883543508] [2022-07-21 17:29:18,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883543508] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:29:18,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:29:18,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:29:18,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970220087] [2022-07-21 17:29:18,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:29:18,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 17:29:18,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:29:18,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 17:29:18,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 17:29:18,336 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 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) [2022-07-21 17:29:18,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:29:18,375 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-07-21 17:29:18,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 17:29:18,377 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 [2022-07-21 17:29:18,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:29:18,381 INFO L225 Difference]: With dead ends: 20 [2022-07-21 17:29:18,381 INFO L226 Difference]: Without dead ends: 18 [2022-07-21 17:29:18,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:29:18,384 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:29:18,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 56 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:29:18,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-07-21 17:29:18,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-07-21 17:29:18,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 15 states have internal predecessors, (17), 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 17:29:18,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-07-21 17:29:18,405 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 11 [2022-07-21 17:29:18,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:29:18,406 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-07-21 17:29:18,406 INFO L496 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) [2022-07-21 17:29:18,406 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-07-21 17:29:18,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 17:29:18,407 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:29:18,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:29:18,415 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 17:29:18,609 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 17:29:18,610 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 17:29:18,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:29:18,610 INFO L85 PathProgramCache]: Analyzing trace with hash -636919425, now seen corresponding path program 1 times [2022-07-21 17:29:18,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:29:18,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420024047] [2022-07-21 17:29:18,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:29:18,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:29:18,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:29:18,613 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 17:29:18,614 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 17:29:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:29:18,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 17:29:18,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:29:18,723 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 17:29:18,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:29:18,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:29:18,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420024047] [2022-07-21 17:29:18,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420024047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:29:18,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:29:18,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 17:29:18,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387912210] [2022-07-21 17:29:18,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:29:18,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 17:29:18,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:29:18,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 17:29:18,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 17:29:18,726 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) 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) [2022-07-21 17:29:18,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:29:18,772 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-07-21 17:29:18,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 17:29:18,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) 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 [2022-07-21 17:29:18,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:29:18,777 INFO L225 Difference]: With dead ends: 31 [2022-07-21 17:29:18,777 INFO L226 Difference]: Without dead ends: 31 [2022-07-21 17:29:18,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:29:18,781 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:29:18,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 64 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:29:18,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-21 17:29:18,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2022-07-21 17:29:18,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.2352941176470589) 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) [2022-07-21 17:29:18,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-07-21 17:29:18,792 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 12 [2022-07-21 17:29:18,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:29:18,792 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-07-21 17:29:18,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) 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) [2022-07-21 17:29:18,793 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-07-21 17:29:18,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 17:29:18,794 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:29:18,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:29:18,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 17:29:19,000 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 17:29:19,001 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:29:19,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:29:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash -636927370, now seen corresponding path program 1 times [2022-07-21 17:29:19,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:29:19,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563477426] [2022-07-21 17:29:19,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:29:19,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:29:19,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:29:19,006 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:29:19,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 17:29:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:29:19,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 17:29:19,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:29:19,155 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 17:29:19,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:29:19,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:29:19,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563477426] [2022-07-21 17:29:19,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1563477426] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:29:19,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:29:19,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:29:19,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298391505] [2022-07-21 17:29:19,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:29:19,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 17:29:19,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:29:19,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 17:29:19,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:29:19,159 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) 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) [2022-07-21 17:29:19,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:29:19,238 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2022-07-21 17:29:19,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 17:29:19,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) 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 [2022-07-21 17:29:19,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:29:19,239 INFO L225 Difference]: With dead ends: 30 [2022-07-21 17:29:19,239 INFO L226 Difference]: Without dead ends: 30 [2022-07-21 17:29:19,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-21 17:29:19,240 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 35 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 17:29:19,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 47 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 17:29:19,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-21 17:29:19,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2022-07-21 17:29:19,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 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) [2022-07-21 17:29:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-07-21 17:29:19,243 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 12 [2022-07-21 17:29:19,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:29:19,244 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-07-21 17:29:19,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) 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) [2022-07-21 17:29:19,244 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-07-21 17:29:19,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 17:29:19,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:29:19,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:29:19,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 17:29:19,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:29:19,459 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:29:19,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:29:19,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1105890910, now seen corresponding path program 1 times [2022-07-21 17:29:19,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:29:19,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498167309] [2022-07-21 17:29:19,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:29:19,460 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:29:19,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:29:19,464 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:29:19,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 17:29:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:29:19,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 17:29:19,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:29:19,526 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 17:29:19,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:29:19,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:29:19,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498167309] [2022-07-21 17:29:19,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498167309] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:29:19,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:29:19,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 17:29:19,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458902942] [2022-07-21 17:29:19,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:29:19,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 17:29:19,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:29:19,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 17:29:19,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 17:29:19,528 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2022-07-21 17:29:19,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:29:19,545 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2022-07-21 17:29:19,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 17:29:19,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 [2022-07-21 17:29:19,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:29:19,546 INFO L225 Difference]: With dead ends: 29 [2022-07-21 17:29:19,546 INFO L226 Difference]: Without dead ends: 27 [2022-07-21 17:29:19,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 17:29:19,547 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 5 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:29:19,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 49 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:29:19,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-07-21 17:29:19,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2022-07-21 17:29:19,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 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) [2022-07-21 17:29:19,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-07-21 17:29:19,549 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 12 [2022-07-21 17:29:19,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:29:19,549 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-07-21 17:29:19,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2022-07-21 17:29:19,550 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-07-21 17:29:19,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-21 17:29:19,550 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:29:19,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:29:19,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 17:29:19,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:29:19,756 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:29:19,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:29:19,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1105882965, now seen corresponding path program 1 times [2022-07-21 17:29:19,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:29:19,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171555009] [2022-07-21 17:29:19,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:29:19,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:29:19,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:29:19,758 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:29:19,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 17:29:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:29:19,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 17:29:19,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:29:19,837 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 17:29:19,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:29:19,837 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:29:19,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171555009] [2022-07-21 17:29:19,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171555009] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:29:19,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:29:19,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 17:29:19,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682020184] [2022-07-21 17:29:19,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:29:19,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 17:29:19,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:29:19,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 17:29:19,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 17:29:19,839 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) 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) [2022-07-21 17:29:19,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:29:19,860 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2022-07-21 17:29:19,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 17:29:19,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) 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 [2022-07-21 17:29:19,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:29:19,861 INFO L225 Difference]: With dead ends: 22 [2022-07-21 17:29:19,861 INFO L226 Difference]: Without dead ends: 17 [2022-07-21 17:29:19,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:29:19,862 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:29:19,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 78 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:29:19,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-21 17:29:19,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-21 17:29:19,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.0769230769230769) 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) [2022-07-21 17:29:19,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2022-07-21 17:29:19,865 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 12 [2022-07-21 17:29:19,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:29:19,865 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2022-07-21 17:29:19,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) 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) [2022-07-21 17:29:19,865 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2022-07-21 17:29:19,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-21 17:29:19,865 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:29:19,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:29:19,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-21 17:29:20,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:29:20,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:29:20,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:29:20,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1730088061, now seen corresponding path program 1 times [2022-07-21 17:29:20,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:29:20,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408452850] [2022-07-21 17:29:20,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:29:20,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:29:20,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:29:20,074 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:29:20,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 17:29:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:29:20,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 17:29:20,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:29:20,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 5 [2022-07-21 17:29:20,148 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 17:29:20,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:29:20,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:29:20,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408452850] [2022-07-21 17:29:20,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408452850] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:29:20,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:29:20,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 17:29:20,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440062092] [2022-07-21 17:29:20,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:29:20,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 17:29:20,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:29:20,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 17:29:20,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 17:29:20,151 INFO L87 Difference]: Start difference. First operand 17 states and 16 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) [2022-07-21 17:29:20,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:29:20,177 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2022-07-21 17:29:20,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 17:29:20,178 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 [2022-07-21 17:29:20,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:29:20,178 INFO L225 Difference]: With dead ends: 16 [2022-07-21 17:29:20,178 INFO L226 Difference]: Without dead ends: 16 [2022-07-21 17:29:20,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 17:29:20,179 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:29:20,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 27 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 17:29:20,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-07-21 17:29:20,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-07-21 17:29:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 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 17:29:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2022-07-21 17:29:20,181 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 13 [2022-07-21 17:29:20,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:29:20,182 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2022-07-21 17:29:20,182 INFO L496 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) [2022-07-21 17:29:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2022-07-21 17:29:20,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-21 17:29:20,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 17:29:20,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:29:20,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 17:29:20,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:29:20,409 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-07-21 17:29:20,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 17:29:20,409 INFO L85 PathProgramCache]: Analyzing trace with hash 462284832, now seen corresponding path program 1 times [2022-07-21 17:29:20,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 17:29:20,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900991426] [2022-07-21 17:29:20,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 17:29:20,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 17:29:20,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 17:29:20,411 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 17:29:20,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 17:29:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 17:29:20,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 17:29:20,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 17:29:20,586 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 17:29:20,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 17:29:20,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 17:29:20,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900991426] [2022-07-21 17:29:20,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900991426] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 17:29:20,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 17:29:20,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 17:29:20,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395698097] [2022-07-21 17:29:20,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 17:29:20,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 17:29:20,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 17:29:20,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 17:29:20,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-21 17:29:20,588 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 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 17:29:20,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 17:29:20,595 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2022-07-21 17:29:20,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 17:29:20,595 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 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 15 [2022-07-21 17:29:20,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 17:29:20,596 INFO L225 Difference]: With dead ends: 15 [2022-07-21 17:29:20,596 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 17:29:20,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-21 17:29:20,596 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 17:29:20,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 30 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 25 Unchecked, 0.0s Time] [2022-07-21 17:29:20,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 17:29:20,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 17:29:20,597 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) [2022-07-21 17:29:20,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 17:29:20,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-07-21 17:29:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 17:29:20,598 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 17:29:20,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 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 17:29:20,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 17:29:20,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 17:29:20,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (3 of 4 remaining) [2022-07-21 17:29:20,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2022-07-21 17:29:20,600 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2022-07-21 17:29:20,601 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2022-07-21 17:29:20,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 17:29:20,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 17:29:20,809 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-07-21 17:29:20,810 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 17:29:20,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:29:20 BoogieIcfgContainer [2022-07-21 17:29:20,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 17:29:20,812 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 17:29:20,812 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 17:29:20,812 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 17:29:20,813 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:29:18" (3/4) ... [2022-07-21 17:29:20,814 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 17:29:20,818 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-07-21 17:29:20,822 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-21 17:29:20,822 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-21 17:29:20,822 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 17:29:20,845 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 17:29:20,845 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 17:29:20,845 INFO L158 Benchmark]: Toolchain (without parser) took 3558.35ms. Allocated memory was 54.5MB in the beginning and 83.9MB in the end (delta: 29.4MB). Free memory was 29.7MB in the beginning and 30.6MB in the end (delta: -875.4kB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2022-07-21 17:29:20,846 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 17:29:20,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.85ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 29.5MB in the beginning and 34.7MB in the end (delta: -5.2MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-07-21 17:29:20,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.75ms. Allocated memory is still 69.2MB. Free memory was 34.5MB in the beginning and 50.1MB in the end (delta: -15.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-07-21 17:29:20,846 INFO L158 Benchmark]: Boogie Preprocessor took 27.12ms. Allocated memory is still 69.2MB. Free memory was 50.1MB in the beginning and 48.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 17:29:20,847 INFO L158 Benchmark]: RCFGBuilder took 194.55ms. Allocated memory is still 69.2MB. Free memory was 48.7MB in the beginning and 38.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 17:29:20,847 INFO L158 Benchmark]: TraceAbstraction took 2700.58ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 38.2MB in the beginning and 32.7MB in the end (delta: 5.5MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-07-21 17:29:20,847 INFO L158 Benchmark]: Witness Printer took 32.78ms. Allocated memory is still 83.9MB. Free memory was 32.7MB in the beginning and 30.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 17:29:20,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory is still 36.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 544.85ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 29.5MB in the beginning and 34.7MB in the end (delta: -5.2MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.75ms. Allocated memory is still 69.2MB. Free memory was 34.5MB in the beginning and 50.1MB in the end (delta: -15.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.12ms. Allocated memory is still 69.2MB. Free memory was 50.1MB in the beginning and 48.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 194.55ms. Allocated memory is still 69.2MB. Free memory was 48.7MB in the beginning and 38.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2700.58ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 38.2MB in the beginning and 32.7MB in the end (delta: 5.5MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Witness Printer took 32.78ms. Allocated memory is still 83.9MB. Free memory was 32.7MB in the beginning and 30.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 764]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 351 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 25 IncrementalHoareTripleChecker+Unchecked, 248 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 103 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=3, InterpolantAutomatonStates: 45, 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, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 80 ConstructedInterpolants, 10 QuantifiedInterpolants, 382 SizeOfPredicates, 8 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 47 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-21 17:29:20,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE