./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b629c59cb02331023154e63644c8b3df364c0289a571dc32bf43bc9966f32e99 ............................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b629c59cb02331023154e63644c8b3df364c0289a571dc32bf43bc9966f32e99 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 06:02:36,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 06:02:36,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 06:02:36,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 06:02:36,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 06:02:36,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 06:02:36,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 06:02:36,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 06:02:36,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 06:02:36,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 06:02:36,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 06:02:36,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 06:02:36,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 06:02:36,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 06:02:36,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 06:02:36,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 06:02:36,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 06:02:36,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 06:02:36,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 06:02:36,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 06:02:36,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 06:02:36,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 06:02:36,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 06:02:36,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 06:02:36,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 06:02:36,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 06:02:36,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 06:02:36,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 06:02:36,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 06:02:36,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 06:02:36,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 06:02:36,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 06:02:36,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 06:02:36,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 06:02:36,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 06:02:36,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 06:02:36,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 06:02:36,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 06:02:36,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 06:02:36,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 06:02:36,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 06:02:36,467 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 06:02:36,493 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 06:02:36,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 06:02:36,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 06:02:36,495 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 06:02:36,496 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 06:02:36,496 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 06:02:36,496 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 06:02:36,496 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 06:02:36,496 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 06:02:36,497 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 06:02:36,497 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 06:02:36,497 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 06:02:36,498 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 06:02:36,498 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 06:02:36,498 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 06:02:36,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 06:02:36,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 06:02:36,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 06:02:36,500 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 06:02:36,500 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 06:02:36,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 06:02:36,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 06:02:36,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 06:02:36,501 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 06:02:36,501 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 06:02:36,501 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 06:02:36,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 06:02:36,502 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 06:02:36,502 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 06:02:36,502 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 06:02:36,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 06:02:36,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 06:02:36,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 06:02:36,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 06:02:36,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 06:02:36,504 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 06:02:36,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 06:02:36,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 06:02:36,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 06:02:36,505 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b629c59cb02331023154e63644c8b3df364c0289a571dc32bf43bc9966f32e99 [2021-10-29 06:02:36,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 06:02:36,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 06:02:36,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 06:02:36,761 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 06:02:36,762 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 06:02:36,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2021-10-29 06:02:36,831 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/data/a1ee688d8/0995c5292d07410a8da75376df5503b8/FLAG169023245 [2021-10-29 06:02:37,458 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 06:02:37,458 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2021-10-29 06:02:37,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/data/a1ee688d8/0995c5292d07410a8da75376df5503b8/FLAG169023245 [2021-10-29 06:02:37,767 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/data/a1ee688d8/0995c5292d07410a8da75376df5503b8 [2021-10-29 06:02:37,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 06:02:37,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 06:02:37,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 06:02:37,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 06:02:37,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 06:02:37,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:02:37" (1/1) ... [2021-10-29 06:02:37,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39dcd128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:37, skipping insertion in model container [2021-10-29 06:02:37,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:02:37" (1/1) ... [2021-10-29 06:02:37,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 06:02:37,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 06:02:38,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 06:02:38,337 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) [2021-10-29 06:02:38,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@57636275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:38, skipping insertion in model container [2021-10-29 06:02:38,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 06:02:38,338 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 06:02:38,342 INFO L168 Benchmark]: Toolchain (without parser) took 568.01 ms. Allocated memory is still 94.4 MB. Free memory was 61.1 MB in the beginning and 66.9 MB in the end (delta: -5.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:38,342 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory is still 51.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 06:02:38,344 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.62 ms. Allocated memory is still 94.4 MB. Free memory was 60.9 MB in the beginning and 66.9 MB in the end (delta: -6.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:38,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory is still 51.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 559.62 ms. Allocated memory is still 94.4 MB. Free memory was 60.9 MB in the beginning and 66.9 MB in the end (delta: -6.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 06:02:40,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 06:02:40,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 06:02:40,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 06:02:40,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 06:02:40,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 06:02:40,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 06:02:40,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 06:02:40,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 06:02:40,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 06:02:40,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 06:02:40,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 06:02:40,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 06:02:40,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 06:02:40,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 06:02:40,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 06:02:40,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 06:02:40,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 06:02:40,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 06:02:40,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 06:02:40,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 06:02:40,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 06:02:40,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 06:02:40,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 06:02:40,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 06:02:40,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 06:02:40,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 06:02:40,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 06:02:40,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 06:02:40,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 06:02:40,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 06:02:40,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 06:02:40,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 06:02:40,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 06:02:40,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 06:02:40,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 06:02:40,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 06:02:40,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 06:02:40,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 06:02:40,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 06:02:40,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 06:02:40,732 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-29 06:02:40,776 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 06:02:40,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 06:02:40,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 06:02:40,778 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 06:02:40,778 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 06:02:40,779 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 06:02:40,779 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 06:02:40,779 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 06:02:40,780 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 06:02:40,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 06:02:40,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 06:02:40,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 06:02:40,783 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 06:02:40,783 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 06:02:40,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 06:02:40,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 06:02:40,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 06:02:40,784 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 06:02:40,784 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 06:02:40,784 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 06:02:40,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 06:02:40,785 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 06:02:40,785 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 06:02:40,785 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 06:02:40,786 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 06:02:40,786 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 06:02:40,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 06:02:40,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 06:02:40,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 06:02:40,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 06:02:40,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 06:02:40,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 06:02:40,788 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 06:02:40,788 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 06:02:40,788 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 06:02:40,789 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 06:02:40,789 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_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b629c59cb02331023154e63644c8b3df364c0289a571dc32bf43bc9966f32e99 [2021-10-29 06:02:41,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 06:02:41,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 06:02:41,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 06:02:41,236 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 06:02:41,236 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 06:02:41,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2021-10-29 06:02:41,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/data/b9a7e215d/07b050f5fa624800b3e86c18ec0058ac/FLAG4dc9f5647 [2021-10-29 06:02:41,980 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 06:02:41,981 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2021-10-29 06:02:41,997 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/data/b9a7e215d/07b050f5fa624800b3e86c18ec0058ac/FLAG4dc9f5647 [2021-10-29 06:02:42,229 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/data/b9a7e215d/07b050f5fa624800b3e86c18ec0058ac [2021-10-29 06:02:42,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 06:02:42,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 06:02:42,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 06:02:42,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 06:02:42,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 06:02:42,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:02:42" (1/1) ... [2021-10-29 06:02:42,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69368f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42, skipping insertion in model container [2021-10-29 06:02:42,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:02:42" (1/1) ... [2021-10-29 06:02:42,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 06:02:42,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 06:02:42,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 06:02:42,761 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 06:02:42,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 06:02:42,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 06:02:42,861 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 06:02:42,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 06:02:42,963 INFO L208 MainTranslator]: Completed translation [2021-10-29 06:02:42,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42 WrapperNode [2021-10-29 06:02:42,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 06:02:42,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 06:02:42,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 06:02:42,965 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 06:02:42,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42" (1/1) ... [2021-10-29 06:02:43,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42" (1/1) ... [2021-10-29 06:02:43,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 06:02:43,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 06:02:43,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 06:02:43,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 06:02:43,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42" (1/1) ... [2021-10-29 06:02:43,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42" (1/1) ... [2021-10-29 06:02:43,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42" (1/1) ... [2021-10-29 06:02:43,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42" (1/1) ... [2021-10-29 06:02:43,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42" (1/1) ... [2021-10-29 06:02:43,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42" (1/1) ... [2021-10-29 06:02:43,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42" (1/1) ... [2021-10-29 06:02:43,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 06:02:43,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 06:02:43,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 06:02:43,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 06:02:43,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42" (1/1) ... [2021-10-29 06:02:43,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 06:02:43,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 06:02:43,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 06:02:43,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 06:02:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 06:02:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 06:02:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 06:02:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 06:02:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 06:02:43,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 06:02:43,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 06:02:43,505 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-29 06:02:43,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:02:43 BoogieIcfgContainer [2021-10-29 06:02:43,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 06:02:43,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 06:02:43,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 06:02:43,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 06:02:43,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:02:42" (1/3) ... [2021-10-29 06:02:43,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc4e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:02:43, skipping insertion in model container [2021-10-29 06:02:43,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:02:42" (2/3) ... [2021-10-29 06:02:43,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc4e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:02:43, skipping insertion in model container [2021-10-29 06:02:43,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:02:43" (3/3) ... [2021-10-29 06:02:43,516 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test1-3.i [2021-10-29 06:02:43,521 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 06:02:43,521 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-29 06:02:43,566 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 06:02:43,572 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 [2021-10-29 06:02:43,572 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-29 06:02:43,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 13 states have internal predecessors, (14), 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) [2021-10-29 06:02:43,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 06:02:43,592 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:43,592 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 06:02:43,593 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)] === [2021-10-29 06:02:43,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:43,599 INFO L85 PathProgramCache]: Analyzing trace with hash 28693827, now seen corresponding path program 1 times [2021-10-29 06:02:43,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:43,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106774036] [2021-10-29 06:02:43,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:43,612 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:43,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:43,617 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:43,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 06:02:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:02:43,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 06:02:43,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:02:43,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:43,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:02:43,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:43,835 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 06:02:43,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106774036] [2021-10-29 06:02:43,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106774036] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:02:43,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:02:43,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 06:02:43,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239495439] [2021-10-29 06:02:43,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 06:02:43,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 06:02:43,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 06:02:43,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 06:02:43,889 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 13 states have internal predecessors, (14), 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-10-29 06:02:43,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:02:43,919 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-10-29 06:02:43,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 06:02:43,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2021-10-29 06:02:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:02:43,927 INFO L225 Difference]: With dead ends: 13 [2021-10-29 06:02:43,927 INFO L226 Difference]: Without dead ends: 11 [2021-10-29 06:02:43,929 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 06:02:43,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-29 06:02:43,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-29 06:02:43,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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) [2021-10-29 06:02:43,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-29 06:02:43,954 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2021-10-29 06:02:43,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:02:43,954 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-29 06:02:43,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-10-29 06:02:43,955 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-29 06:02:43,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 06:02:43,955 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:43,956 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 06:02:43,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-29 06:02:44,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:44,167 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)] === [2021-10-29 06:02:44,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:44,168 INFO L85 PathProgramCache]: Analyzing trace with hash 889508680, now seen corresponding path program 1 times [2021-10-29 06:02:44,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:44,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568739352] [2021-10-29 06:02:44,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:44,169 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:44,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:44,170 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:44,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 06:02:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:02:44,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 06:02:44,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:02:44,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:44,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:02:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:44,362 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 06:02:44,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568739352] [2021-10-29 06:02:44,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568739352] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:02:44,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:02:44,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-29 06:02:44,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712201467] [2021-10-29 06:02:44,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 06:02:44,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 06:02:44,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 06:02:44,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 06:02:44,367 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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) [2021-10-29 06:02:44,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:02:44,463 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2021-10-29 06:02:44,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 06:02:44,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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) Word has length 6 [2021-10-29 06:02:44,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:02:44,464 INFO L225 Difference]: With dead ends: 17 [2021-10-29 06:02:44,464 INFO L226 Difference]: Without dead ends: 17 [2021-10-29 06:02:44,465 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-10-29 06:02:44,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-29 06:02:44,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 10. [2021-10-29 06:02:44,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 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) [2021-10-29 06:02:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-29 06:02:44,468 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2021-10-29 06:02:44,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:02:44,468 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-29 06:02:44,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 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) [2021-10-29 06:02:44,469 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-29 06:02:44,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 06:02:44,470 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:44,470 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:02:44,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 06:02:44,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:44,681 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)] === [2021-10-29 06:02:44,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:44,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965349, now seen corresponding path program 1 times [2021-10-29 06:02:44,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:44,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1450535815] [2021-10-29 06:02:44,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:44,682 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:44,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:44,697 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:44,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 06:02:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:02:44,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 06:02:44,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:02:44,795 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 [2021-10-29 06:02:44,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:44,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:02:44,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:44,865 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 06:02:44,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1450535815] [2021-10-29 06:02:44,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1450535815] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:02:44,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:02:44,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 06:02:44,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122503218] [2021-10-29 06:02:44,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 06:02:44,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 06:02:44,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 06:02:44,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 06:02:44,868 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-10-29 06:02:44,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:02:44,910 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-10-29 06:02:44,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 06:02:44,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 7 [2021-10-29 06:02:44,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:02:44,912 INFO L225 Difference]: With dead ends: 14 [2021-10-29 06:02:44,912 INFO L226 Difference]: Without dead ends: 14 [2021-10-29 06:02:44,912 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 06:02:44,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-29 06:02:44,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-29 06:02:44,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 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) [2021-10-29 06:02:44,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-10-29 06:02:44,916 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2021-10-29 06:02:44,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:02:44,916 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-10-29 06:02:44,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-10-29 06:02:44,917 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-10-29 06:02:44,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 06:02:44,917 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:44,917 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:02:44,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 06:02:45,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:45,129 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)] === [2021-10-29 06:02:45,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:45,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812391, now seen corresponding path program 1 times [2021-10-29 06:02:45,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:45,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466317312] [2021-10-29 06:02:45,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:45,131 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:45,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:45,132 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:45,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 06:02:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:02:45,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 06:02:45,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:02:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:45,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:02:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:45,248 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 06:02:45,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466317312] [2021-10-29 06:02:45,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466317312] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:02:45,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:02:45,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 06:02:45,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228554967] [2021-10-29 06:02:45,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 06:02:45,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 06:02:45,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 06:02:45,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 06:02:45,251 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-10-29 06:02:45,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:02:45,270 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2021-10-29 06:02:45,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 06:02:45,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 7 [2021-10-29 06:02:45,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:02:45,272 INFO L225 Difference]: With dead ends: 15 [2021-10-29 06:02:45,272 INFO L226 Difference]: Without dead ends: 15 [2021-10-29 06:02:45,272 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 06:02:45,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-29 06:02:45,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 9. [2021-10-29 06:02:45,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-10-29 06:02:45,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-29 06:02:45,275 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-10-29 06:02:45,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:02:45,275 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-29 06:02:45,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-10-29 06:02:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-29 06:02:45,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 06:02:45,276 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:45,276 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:02:45,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 06:02:45,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:45,487 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)] === [2021-10-29 06:02:45,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:45,488 INFO L85 PathProgramCache]: Analyzing trace with hash 119351020, now seen corresponding path program 1 times [2021-10-29 06:02:45,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:45,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412514526] [2021-10-29 06:02:45,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:45,489 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:45,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:45,491 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:45,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 06:02:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:02:45,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 06:02:45,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:02:45,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:45,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:02:50,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:50,125 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 06:02:50,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412514526] [2021-10-29 06:02:50,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412514526] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:02:50,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:02:50,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 06:02:50,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508058394] [2021-10-29 06:02:50,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 06:02:50,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 06:02:50,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 06:02:50,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2021-10-29 06:02:50,129 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 9 states have internal predecessors, (15), 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) [2021-10-29 06:02:50,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:02:50,247 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-10-29 06:02:50,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 06:02:50,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 9 states have internal predecessors, (15), 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) Word has length 8 [2021-10-29 06:02:50,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:02:50,248 INFO L225 Difference]: With dead ends: 14 [2021-10-29 06:02:50,248 INFO L226 Difference]: Without dead ends: 9 [2021-10-29 06:02:50,249 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=33, Invalid=75, Unknown=2, NotChecked=0, Total=110 [2021-10-29 06:02:50,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-29 06:02:50,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-29 06:02:50,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2021-10-29 06:02:50,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-10-29 06:02:50,250 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-10-29 06:02:50,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:02:50,251 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-10-29 06:02:50,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 9 states have internal predecessors, (15), 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) [2021-10-29 06:02:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-10-29 06:02:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 06:02:50,251 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 06:02:50,252 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 06:02:50,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 06:02:50,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:50,461 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)] === [2021-10-29 06:02:50,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 06:02:50,462 INFO L85 PathProgramCache]: Analyzing trace with hash 176609322, now seen corresponding path program 1 times [2021-10-29 06:02:50,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 06:02:50,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729711543] [2021-10-29 06:02:50,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 06:02:50,463 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 06:02:50,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 06:02:50,463 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 06:02:50,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 06:02:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 06:02:50,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 06:02:50,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 06:02:50,547 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-29 06:02:50,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 15 [2021-10-29 06:02:50,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:50,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 06:02:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 06:02:50,906 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 06:02:50,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729711543] [2021-10-29 06:02:50,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729711543] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 06:02:50,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 06:02:50,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 9 [2021-10-29 06:02:50,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389636910] [2021-10-29 06:02:50,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 06:02:50,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 06:02:50,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 06:02:50,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-29 06:02:50,908 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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) [2021-10-29 06:02:50,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 06:02:50,970 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-10-29 06:02:50,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 06:02:50,972 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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) Word has length 8 [2021-10-29 06:02:50,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 06:02:50,972 INFO L225 Difference]: With dead ends: 8 [2021-10-29 06:02:50,972 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 06:02:50,973 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-10-29 06:02:50,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 06:02:50,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 06:02:50,973 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) [2021-10-29 06:02:50,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 06:02:50,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-10-29 06:02:50,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 06:02:50,974 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 06:02:50,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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) [2021-10-29 06:02:50,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 06:02:50,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 06:02:50,976 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 06:02:50,977 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 06:02:50,977 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 06:02:50,977 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 06:02:50,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 06:02:51,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 06:02:51,181 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-29 06:02:51,182 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 06:02:51,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:02:51 BoogieIcfgContainer [2021-10-29 06:02:51,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 06:02:51,186 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 06:02:51,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 06:02:51,187 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 06:02:51,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:02:43" (3/4) ... [2021-10-29 06:02:51,190 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 06:02:51,200 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-29 06:02:51,200 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 06:02:51,200 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 06:02:51,235 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 06:02:51,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 06:02:51,243 INFO L168 Benchmark]: Toolchain (without parser) took 9009.46 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 43.2 MB in the beginning and 33.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 39.9 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:51,244 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 65.0 MB. Free memory is still 46.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 06:02:51,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.50 ms. Allocated memory is still 65.0 MB. Free memory was 43.0 MB in the beginning and 30.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:51,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.96 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 30.5 MB in the beginning and 77.8 MB in the end (delta: -47.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:51,247 INFO L168 Benchmark]: Boogie Preprocessor took 25.95 ms. Allocated memory is still 96.5 MB. Free memory was 77.8 MB in the beginning and 76.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:51,248 INFO L168 Benchmark]: RCFGBuilder took 439.30 ms. Allocated memory is still 96.5 MB. Free memory was 76.5 MB in the beginning and 66.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:51,248 INFO L168 Benchmark]: TraceAbstraction took 7676.49 ms. Allocated memory is still 96.5 MB. Free memory was 66.0 MB in the beginning and 36.2 MB in the end (delta: 29.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:51,249 INFO L168 Benchmark]: Witness Printer took 48.82 ms. Allocated memory is still 96.5 MB. Free memory was 36.2 MB in the beginning and 33.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 06:02:51,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 65.0 MB. Free memory is still 46.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 729.50 ms. Allocated memory is still 65.0 MB. Free memory was 43.0 MB in the beginning and 30.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.96 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 30.5 MB in the beginning and 77.8 MB in the end (delta: -47.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.95 ms. Allocated memory is still 96.5 MB. Free memory was 77.8 MB in the beginning and 76.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 439.30 ms. Allocated memory is still 96.5 MB. Free memory was 76.5 MB in the beginning and 66.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7676.49 ms. Allocated memory is still 96.5 MB. Free memory was 66.0 MB in the beginning and 36.2 MB in the end (delta: 29.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 16.1 GB. * Witness Printer took 48.82 ms. Allocated memory is still 96.5 MB. Free memory was 36.2 MB in the beginning and 33.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 74 SDslu, 37 SDs, 0 SdLazy, 100 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 32, 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, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 9 QuantifiedInterpolants, 461 SizeOfPredicates, 10 NumberOfNonLiveVariables, 181 ConjunctsInSsa, 27 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! [2021-10-29 06:02:51,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8700874-d1dd-42d2-93dd-e263c16eb39f/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...