./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF --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 b629c59cb02331023154e63644c8b3df364c0289a571dc32bf43bc9966f32e99 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:55:05,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:55:05,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:55:05,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:55:05,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:55:05,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:55:05,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:55:05,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:55:05,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:55:05,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:55:05,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:55:05,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:55:05,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:55:05,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:55:05,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:55:05,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:55:05,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:55:05,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:55:05,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:55:05,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:55:05,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:55:05,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:55:05,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:55:05,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:55:05,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:55:05,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:55:05,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:55:05,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:55:05,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:55:05,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:55:05,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:55:05,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:55:05,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:55:05,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:55:05,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:55:05,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:55:05,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:55:05,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:55:05,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:55:05,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:55:05,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:55:05,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-20 05:55:05,413 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:55:05,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:55:05,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:55:05,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:55:05,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:55:05,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:55:05,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:55:05,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:55:05,425 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:55:05,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:55:05,427 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:55:05,427 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:55:05,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:55:05,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:55:05,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:55:05,428 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 05:55:05,428 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 05:55:05,429 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 05:55:05,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:55:05,429 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 05:55:05,429 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:55:05,429 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:55:05,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:55:05,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:55:05,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:55:05,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:55:05,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:55:05,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:55:05,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:55:05,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:55:05,434 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:55:05,434 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b629c59cb02331023154e63644c8b3df364c0289a571dc32bf43bc9966f32e99 [2021-11-20 05:55:05,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:55:05,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:55:05,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:55:05,746 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:55:05,747 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:55:05,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2021-11-20 05:55:05,828 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/data/9cfe35b4c/2efc2b2dabe043b79ba1568b6890c1a5/FLAGb4c6a25b5 [2021-11-20 05:55:06,602 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:55:06,607 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2021-11-20 05:55:06,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/data/9cfe35b4c/2efc2b2dabe043b79ba1568b6890c1a5/FLAGb4c6a25b5 [2021-11-20 05:55:06,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/data/9cfe35b4c/2efc2b2dabe043b79ba1568b6890c1a5 [2021-11-20 05:55:06,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:55:06,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:55:06,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:55:06,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:55:06,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:55:06,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:55:06" (1/1) ... [2021-11-20 05:55:06,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ebbd8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:06, skipping insertion in model container [2021-11-20 05:55:06,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:55:06" (1/1) ... [2021-11-20 05:55:06,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:55:06,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:55:07,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:55:07,588 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-20 05:55:07,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@37011ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:07, skipping insertion in model container [2021-11-20 05:55:07,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:55:07,590 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-20 05:55:07,594 INFO L158 Benchmark]: Toolchain (without parser) took 756.92ms. Allocated memory is still 113.2MB. Free memory was 82.8MB in the beginning and 82.1MB in the end (delta: 741.5kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 05:55:07,594 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:55:07,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 750.11ms. Allocated memory is still 113.2MB. Free memory was 82.6MB in the beginning and 82.4MB in the end (delta: 209.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 05:55:07,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 750.11ms. Allocated memory is still 113.2MB. Free memory was 82.6MB in the beginning and 82.4MB in the end (delta: 209.1kB). Peak memory consumption was 6.3MB. 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 where the value type is smaller than the cast-to type 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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF --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 b629c59cb02331023154e63644c8b3df364c0289a571dc32bf43bc9966f32e99 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:55:10,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:55:10,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:55:10,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:55:10,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:55:10,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:55:10,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:55:10,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:55:10,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:55:10,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:55:10,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:55:10,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:55:10,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:55:10,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:55:10,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:55:10,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:55:10,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:55:10,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:55:10,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:55:10,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:55:10,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:55:10,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:55:10,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:55:10,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:55:10,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:55:10,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:55:10,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:55:10,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:55:10,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:55:10,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:55:10,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:55:10,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:55:10,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:55:10,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:55:10,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:55:10,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:55:10,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:55:10,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:55:10,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:55:10,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:55:10,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:55:10,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-20 05:55:10,486 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:55:10,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:55:10,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:55:10,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:55:10,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:55:10,489 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:55:10,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:55:10,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:55:10,494 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:55:10,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:55:10,495 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:55:10,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:55:10,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:55:10,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:55:10,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:55:10,496 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 05:55:10,496 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 05:55:10,496 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-20 05:55:10,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:55:10,497 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 05:55:10,497 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 05:55:10,497 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 05:55:10,497 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:55:10,497 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:55:10,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:55:10,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:55:10,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:55:10,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:55:10,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:55:10,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:55:10,499 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 05:55:10,499 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 05:55:10,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:55:10,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 05:55:10,500 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b629c59cb02331023154e63644c8b3df364c0289a571dc32bf43bc9966f32e99 [2021-11-20 05:55:10,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:55:10,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:55:10,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:55:10,991 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:55:10,992 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:55:10,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2021-11-20 05:55:11,077 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/data/dad6c1768/d50c76f192914e4f9b98613ddf916c32/FLAGaf88938f1 [2021-11-20 05:55:11,768 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:55:11,769 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2021-11-20 05:55:11,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/data/dad6c1768/d50c76f192914e4f9b98613ddf916c32/FLAGaf88938f1 [2021-11-20 05:55:12,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/data/dad6c1768/d50c76f192914e4f9b98613ddf916c32 [2021-11-20 05:55:12,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:55:12,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:55:12,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:55:12,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:55:12,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:55:12,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:55:12" (1/1) ... [2021-11-20 05:55:12,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec42b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:12, skipping insertion in model container [2021-11-20 05:55:12,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:55:12" (1/1) ... [2021-11-20 05:55:12,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:55:12,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:55:12,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:55:12,818 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-20 05:55:12,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:55:12,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:55:12,953 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:55:13,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:55:13,089 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:55:13,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:13 WrapperNode [2021-11-20 05:55:13,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:55:13,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:55:13,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:55:13,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:55:13,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:13" (1/1) ... [2021-11-20 05:55:13,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:13" (1/1) ... [2021-11-20 05:55:13,162 INFO L137 Inliner]: procedures = 165, calls = 69, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 18 [2021-11-20 05:55:13,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:55:13,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:55:13,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:55:13,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:55:13,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:13" (1/1) ... [2021-11-20 05:55:13,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:13" (1/1) ... [2021-11-20 05:55:13,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:13" (1/1) ... [2021-11-20 05:55:13,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:13" (1/1) ... [2021-11-20 05:55:13,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:13" (1/1) ... [2021-11-20 05:55:13,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:13" (1/1) ... [2021-11-20 05:55:13,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:13" (1/1) ... [2021-11-20 05:55:13,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:55:13,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:55:13,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:55:13,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:55:13,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:13" (1/1) ... [2021-11-20 05:55:13,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:55:13,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:55:13,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:55:13,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:55:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 05:55:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 05:55:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 05:55:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:55:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:55:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 05:55:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:55:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:55:13,450 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:55:13,452 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:55:13,565 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:55:13,572 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:55:13,572 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 05:55:13,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:55:13 BoogieIcfgContainer [2021-11-20 05:55:13,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:55:13,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:55:13,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:55:13,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:55:13,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:55:12" (1/3) ... [2021-11-20 05:55:13,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3611c32a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:55:13, skipping insertion in model container [2021-11-20 05:55:13,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:55:13" (2/3) ... [2021-11-20 05:55:13,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3611c32a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:55:13, skipping insertion in model container [2021-11-20 05:55:13,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:55:13" (3/3) ... [2021-11-20 05:55:13,585 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test1-3.i [2021-11-20 05:55:13,591 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:55:13,592 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-20 05:55:13,689 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:55:13,696 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 05:55:13,696 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-20 05:55:13,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 16 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) [2021-11-20 05:55:13,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-20 05:55:13,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:55:13,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:55:13,737 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-11-20 05:55:13,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:55:13,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1841933483, now seen corresponding path program 1 times [2021-11-20 05:55:13,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:55:13,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456218273] [2021-11-20 05:55:13,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:55:13,760 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:55:13,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:55:13,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:55:13,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 05:55:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:13,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:55:13,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:55:14,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:55:14,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:55:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:55:14,126 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:55:14,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456218273] [2021-11-20 05:55:14,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456218273] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:55:14,129 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:55:14,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-20 05:55:14,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719285221] [2021-11-20 05:55:14,133 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:55:14,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:55:14,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:55:14,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:55:14,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:55:14,186 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 16 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) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-11-20 05:55:14,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:55:14,221 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-11-20 05:55:14,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:55:14,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 9 [2021-11-20 05:55:14,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:55:14,231 INFO L225 Difference]: With dead ends: 18 [2021-11-20 05:55:14,232 INFO L226 Difference]: Without dead ends: 16 [2021-11-20 05:55:14,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:55:14,244 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 9 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:55:14,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 50 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:55:14,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-20 05:55:14,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-20 05:55:14,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 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) [2021-11-20 05:55:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-20 05:55:14,290 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2021-11-20 05:55:14,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:55:14,291 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-20 05:55:14,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-11-20 05:55:14,293 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-20 05:55:14,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 05:55:14,294 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:55:14,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:55:14,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-20 05:55:14,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:55:14,507 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-11-20 05:55:14,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:55:14,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1265363169, now seen corresponding path program 1 times [2021-11-20 05:55:14,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:55:14,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676996751] [2021-11-20 05:55:14,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:55:14,510 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:55:14,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:55:14,512 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:55:14,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 05:55:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:14,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 05:55:14,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:55:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:55:14,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:55:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:55:14,911 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:55:14,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676996751] [2021-11-20 05:55:14,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676996751] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:55:14,912 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:55:14,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-11-20 05:55:14,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366419575] [2021-11-20 05:55:14,912 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:55:14,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 05:55:14,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:55:14,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 05:55:14,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:55:14,915 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:55:15,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:55:15,030 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-11-20 05:55:15,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:55:15,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 10 [2021-11-20 05:55:15,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:55:15,033 INFO L225 Difference]: With dead ends: 24 [2021-11-20 05:55:15,034 INFO L226 Difference]: Without dead ends: 24 [2021-11-20 05:55:15,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-20 05:55:15,036 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 31 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:55:15,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 39 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:55:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-20 05:55:15,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 15. [2021-11-20 05:55:15,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 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) [2021-11-20 05:55:15,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-20 05:55:15,045 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2021-11-20 05:55:15,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:55:15,046 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-20 05:55:15,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:55:15,047 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-20 05:55:15,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 05:55:15,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:55:15,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:55:15,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:55:15,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:55:15,266 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-11-20 05:55:15,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:55:15,267 INFO L85 PathProgramCache]: Analyzing trace with hash 571552621, now seen corresponding path program 1 times [2021-11-20 05:55:15,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:55:15,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856996996] [2021-11-20 05:55:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:55:15,269 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:55:15,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:55:15,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:55:15,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 05:55:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:15,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:55:15,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:55:15,358 INFO L388 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 [2021-11-20 05:55:15,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:55:15,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:55:15,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:55:15,465 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:55:15,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856996996] [2021-11-20 05:55:15,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856996996] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:55:15,466 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:55:15,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-20 05:55:15,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654998732] [2021-11-20 05:55:15,467 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:55:15,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:55:15,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:55:15,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:55:15,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:55:15,469 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:55:15,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:55:15,508 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-11-20 05:55:15,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:55:15,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-20 05:55:15,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:55:15,510 INFO L225 Difference]: With dead ends: 21 [2021-11-20 05:55:15,510 INFO L226 Difference]: Without dead ends: 21 [2021-11-20 05:55:15,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:55:15,512 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:55:15,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:55:15,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-20 05:55:15,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-20 05:55:15,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 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) [2021-11-20 05:55:15,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-20 05:55:15,518 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 11 [2021-11-20 05:55:15,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:55:15,519 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-11-20 05:55:15,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:55:15,519 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-20 05:55:15,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 05:55:15,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:55:15,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:55:15,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:55:15,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:55:15,732 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-11-20 05:55:15,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:55:15,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1459056302, now seen corresponding path program 1 times [2021-11-20 05:55:15,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:55:15,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818339515] [2021-11-20 05:55:15,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:55:15,734 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:55:15,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:55:15,736 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:55:15,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 05:55:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:15,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:55:15,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:55:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:55:15,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:55:15,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:55:15,915 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:55:15,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818339515] [2021-11-20 05:55:15,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818339515] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:55:15,916 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:55:15,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-20 05:55:15,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270944493] [2021-11-20 05:55:15,916 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:55:15,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:55:15,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:55:15,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:55:15,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:55:15,918 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:55:15,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:55:15,940 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-11-20 05:55:15,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:55:15,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-20 05:55:15,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:55:15,941 INFO L225 Difference]: With dead ends: 23 [2021-11-20 05:55:15,942 INFO L226 Difference]: Without dead ends: 23 [2021-11-20 05:55:15,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:55:15,944 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:55:15,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 63 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:55:15,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-20 05:55:15,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 14. [2021-11-20 05:55:15,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:55:15,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-11-20 05:55:15,949 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2021-11-20 05:55:15,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:55:15,950 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-11-20 05:55:15,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 05:55:15,950 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-11-20 05:55:15,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 05:55:15,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:55:15,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:55:15,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:55:16,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:55:16,163 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-11-20 05:55:16,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:55:16,165 INFO L85 PathProgramCache]: Analyzing trace with hash -493743568, now seen corresponding path program 1 times [2021-11-20 05:55:16,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:55:16,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047630998] [2021-11-20 05:55:16,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:55:16,166 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:55:16,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:55:16,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:55:16,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 05:55:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:16,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 05:55:16,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:55:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:55:16,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:55:20,956 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ldv_malloc_#res.base_22| (_ BitVec 32)) (|v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_2| (Array (_ BitVec 32) (_ BitVec 1)))) (or (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_22|)))) (exists ((|v_ULTIMATE.start_entry_point_#t~ret38#1.base_24| (_ BitVec 32))) (and (not (= |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_2| (store |c_old(#valid)| |v_ULTIMATE.start_entry_point_#t~ret38#1.base_24| (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ULTIMATE.start_entry_point_#t~ret38#1.base_24|)))))))) (= (store |c_#valid| |v_ldv_malloc_#res.base_22| (_ bv0 1)) |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_2|))) is different from false [2021-11-20 05:55:21,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:55:21,065 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:55:21,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047630998] [2021-11-20 05:55:21,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047630998] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:55:21,066 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:55:21,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-20 05:55:21,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097346004] [2021-11-20 05:55:21,067 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:55:21,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 05:55:21,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:55:21,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 05:55:21,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=100, Unknown=7, NotChecked=20, Total=156 [2021-11-20 05:55:21,071 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:55:21,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:55:21,202 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-11-20 05:55:21,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:55:21,202 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2021-11-20 05:55:21,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:55:21,203 INFO L225 Difference]: With dead ends: 22 [2021-11-20 05:55:21,203 INFO L226 Difference]: Without dead ends: 14 [2021-11-20 05:55:21,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=35, Invalid=118, Unknown=7, NotChecked=22, Total=182 [2021-11-20 05:55:21,205 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:55:21,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 67 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 48 Unchecked, 0.1s Time] [2021-11-20 05:55:21,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-20 05:55:21,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-20 05:55:21,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.0) internal successors, (11), 11 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) [2021-11-20 05:55:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-11-20 05:55:21,208 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2021-11-20 05:55:21,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:55:21,208 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-11-20 05:55:21,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:55:21,209 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-11-20 05:55:21,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 05:55:21,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:55:21,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:55:21,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 05:55:21,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:55:21,410 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-11-20 05:55:21,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:55:21,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1993769265, now seen corresponding path program 1 times [2021-11-20 05:55:21,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 05:55:21,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836250990] [2021-11-20 05:55:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:55:21,412 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 05:55:21,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 05:55:21,412 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 05:55:21,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 05:55:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:55:21,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 05:55:21,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:55:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:55:21,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:55:21,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:55:21,805 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 05:55:21,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836250990] [2021-11-20 05:55:21,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836250990] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 05:55:21,805 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:55:21,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 12 [2021-11-20 05:55:21,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134220844] [2021-11-20 05:55:21,805 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 05:55:21,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 05:55:21,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 05:55:21,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 05:55:21,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-20 05:55:21,807 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 14 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:55:21,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:55:21,904 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-11-20 05:55:21,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:55:21,906 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2021-11-20 05:55:21,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:55:21,906 INFO L225 Difference]: With dead ends: 13 [2021-11-20 05:55:21,906 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 05:55:21,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-11-20 05:55:21,908 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:55:21,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 36 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:55:21,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 05:55:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 05:55:21,909 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) [2021-11-20 05:55:21,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 05:55:21,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-20 05:55:21,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:55:21,910 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 05:55:21,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:55:21,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 05:55:21,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 05:55:21,912 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (3 of 4 remaining) [2021-11-20 05:55:21,913 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2021-11-20 05:55:21,913 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2021-11-20 05:55:21,913 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2021-11-20 05:55:21,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 05:55:22,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 05:55:22,128 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-20 05:55:22,129 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 05:55:22,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:55:22 BoogieIcfgContainer [2021-11-20 05:55:22,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 05:55:22,133 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:55:22,133 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:55:22,133 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:55:22,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:55:13" (3/4) ... [2021-11-20 05:55:22,137 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 05:55:22,143 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2021-11-20 05:55:22,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-20 05:55:22,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-20 05:55:22,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 05:55:22,175 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 05:55:22,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:55:22,176 INFO L158 Benchmark]: Toolchain (without parser) took 10143.26ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 38.5MB in the beginning and 40.1MB in the end (delta: -1.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-20 05:55:22,176 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:55:22,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1053.95ms. Allocated memory is still 60.8MB. Free memory was 38.2MB in the beginning and 29.3MB in the end (delta: 8.9MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2021-11-20 05:55:22,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.74ms. Allocated memory is still 60.8MB. Free memory was 29.1MB in the beginning and 27.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:55:22,177 INFO L158 Benchmark]: Boogie Preprocessor took 26.59ms. Allocated memory is still 60.8MB. Free memory was 27.1MB in the beginning and 25.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:55:22,178 INFO L158 Benchmark]: RCFGBuilder took 384.34ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 25.7MB in the beginning and 51.6MB in the end (delta: -25.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 05:55:22,178 INFO L158 Benchmark]: TraceAbstraction took 8555.29ms. Allocated memory is still 77.6MB. Free memory was 51.0MB in the beginning and 42.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-11-20 05:55:22,178 INFO L158 Benchmark]: Witness Printer took 42.27ms. Allocated memory is still 77.6MB. Free memory was 42.6MB in the beginning and 40.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:55:22,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 60.8MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1053.95ms. Allocated memory is still 60.8MB. Free memory was 38.2MB in the beginning and 29.3MB in the end (delta: 8.9MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.74ms. Allocated memory is still 60.8MB. Free memory was 29.1MB in the beginning and 27.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.59ms. Allocated memory is still 60.8MB. Free memory was 27.1MB in the beginning and 25.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 384.34ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 25.7MB in the beginning and 51.6MB in the end (delta: -25.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 8555.29ms. Allocated memory is still 77.6MB. Free memory was 51.0MB in the beginning and 42.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Witness Printer took 42.27ms. Allocated memory is still 77.6MB. Free memory was 42.6MB in the beginning and 40.1MB in the end (delta: 2.5MB). 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: 759]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 759]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 759]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 761]: 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, 19 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 285 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 48 IncrementalHoareTripleChecker+Unchecked, 208 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 206 IncrementalHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 77 mSDtfsCounter, 206 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 81 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=3, InterpolantAutomatonStates: 40, 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, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 122 ConstructedInterpolants, 7 QuantifiedInterpolants, 731 SizeOfPredicates, 3 NumberOfNonLiveVariables, 219 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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! [2021-11-20 05:55:22,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd641ea3-05cc-4bbf-8f72-efcd1285c88c/bin/uautomizer-DQz5hQGWxF/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