./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.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_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/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_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/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_4d735969-a545-4cbb-aede-33513e32cb9d/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 d93866bdcd748cdf15837797eb67e5b49645998c33f9f4788420360893eea3e2 ............................................................................................................................................. 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_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/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_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/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_4d735969-a545-4cbb-aede-33513e32cb9d/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 d93866bdcd748cdf15837797eb67e5b49645998c33f9f4788420360893eea3e2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:53:01,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:53:01,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:53:01,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:53:01,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:53:01,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:53:01,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:53:01,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:53:01,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:53:01,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:53:01,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:53:01,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:53:01,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:53:01,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:53:01,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:53:01,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:53:01,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:53:01,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:53:01,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:53:01,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:53:01,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:53:01,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:53:01,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:53:01,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:53:01,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:53:01,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:53:01,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:53:01,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:53:01,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:53:01,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:53:01,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:53:01,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:53:01,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:53:01,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:53:01,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:53:01,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:53:01,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:53:01,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:53:01,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:53:01,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:53:01,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:53:01,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 04:53:01,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:53:01,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:53:01,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:53:01,544 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:53:01,544 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:53:01,545 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:53:01,545 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:53:01,545 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:53:01,545 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:53:01,546 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:53:01,547 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:53:01,547 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:53:01,548 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:53:01,548 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:53:01,548 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:53:01,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:53:01,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:53:01,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:53:01,550 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:53:01,550 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:53:01,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:53:01,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:53:01,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:53:01,551 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:53:01,552 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:53:01,552 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:53:01,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:53:01,554 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:53:01,554 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:53:01,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:53:01,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:53:01,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:53:01,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:01,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:53:01,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:53:01,557 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:53:01,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:53:01,557 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:53:01,558 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:53:01,558 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_4d735969-a545-4cbb-aede-33513e32cb9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d93866bdcd748cdf15837797eb67e5b49645998c33f9f4788420360893eea3e2 [2021-10-29 04:53:01,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:53:01,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:53:01,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:53:01,950 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:53:01,951 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:53:01,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-29 04:53:02,044 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/data/641a4fc59/3a15241c32054e69bcb26d9f6999f6a2/FLAG492510664 [2021-10-29 04:53:02,789 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:53:02,789 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-29 04:53:02,827 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/data/641a4fc59/3a15241c32054e69bcb26d9f6999f6a2/FLAG492510664 [2021-10-29 04:53:03,018 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/data/641a4fc59/3a15241c32054e69bcb26d9f6999f6a2 [2021-10-29 04:53:03,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:53:03,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:53:03,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:03,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:53:03,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:53:03,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:03" (1/1) ... [2021-10-29 04:53:03,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a3463a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:03, skipping insertion in model container [2021-10-29 04:53:03,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:03" (1/1) ... [2021-10-29 04:53:03,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:53:03,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:53:03,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:03,687 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 04:53:03,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@25c7ea9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:03, skipping insertion in model container [2021-10-29 04:53:03,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:03,689 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 04:53:03,692 INFO L168 Benchmark]: Toolchain (without parser) took 666.51 ms. Allocated memory is still 117.4 MB. Free memory was 96.2 MB in the beginning and 83.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:03,693 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:53:03,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.27 ms. Allocated memory is still 117.4 MB. Free memory was 95.9 MB in the beginning and 83.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:03,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 663.27 ms. Allocated memory is still 117.4 MB. Free memory was 95.9 MB in the beginning and 83.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 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 04:53:06,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:53:06,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:53:06,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:53:06,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:53:06,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:53:06,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:53:06,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:53:06,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:53:06,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:53:06,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:53:06,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:53:06,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:53:06,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:53:06,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:53:06,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:53:06,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:53:06,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:53:06,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:53:06,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:53:06,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:53:06,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:53:06,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:53:06,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:53:06,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:53:06,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:53:06,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:53:06,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:53:06,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:53:06,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:53:06,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:53:06,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:53:06,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:53:06,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:53:06,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:53:06,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:53:06,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:53:06,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:53:06,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:53:06,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:53:06,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:53:06,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-29 04:53:06,587 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:53:06,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:53:06,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:53:06,589 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:53:06,590 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:53:06,590 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:53:06,590 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:53:06,591 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:53:06,592 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:53:06,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:53:06,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:53:06,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:53:06,595 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:53:06,596 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:53:06,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:53:06,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:53:06,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:53:06,597 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:53:06,597 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:53:06,597 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:53:06,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:53:06,598 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:53:06,598 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:53:06,598 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:53:06,598 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:53:06,599 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:53:06,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:53:06,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:53:06,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:53:06,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:06,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:53:06,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:53:06,601 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:53:06,601 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:53:06,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:53:06,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:53:06,602 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_4d735969-a545-4cbb-aede-33513e32cb9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d93866bdcd748cdf15837797eb67e5b49645998c33f9f4788420360893eea3e2 [2021-10-29 04:53:07,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:53:07,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:53:07,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:53:07,119 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:53:07,120 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:53:07,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-29 04:53:07,200 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/data/19986a968/98a6f9cfdc0e4aa097b098dcc71e3738/FLAGa7c201ce1 [2021-10-29 04:53:07,844 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:53:07,845 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2021-10-29 04:53:07,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/data/19986a968/98a6f9cfdc0e4aa097b098dcc71e3738/FLAGa7c201ce1 [2021-10-29 04:53:08,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/data/19986a968/98a6f9cfdc0e4aa097b098dcc71e3738 [2021-10-29 04:53:08,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:53:08,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:53:08,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:08,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:53:08,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:53:08,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:08" (1/1) ... [2021-10-29 04:53:08,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c08b197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08, skipping insertion in model container [2021-10-29 04:53:08,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:53:08" (1/1) ... [2021-10-29 04:53:08,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:53:08,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:53:08,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:08,616 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:53:08,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:53:08,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:08,692 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:53:08,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:53:08,860 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:53:08,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08 WrapperNode [2021-10-29 04:53:08,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:53:08,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:53:08,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:53:08,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:53:08,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08" (1/1) ... [2021-10-29 04:53:08,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08" (1/1) ... [2021-10-29 04:53:08,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:53:08,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:53:08,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:53:08,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:53:08,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08" (1/1) ... [2021-10-29 04:53:08,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08" (1/1) ... [2021-10-29 04:53:08,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08" (1/1) ... [2021-10-29 04:53:08,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08" (1/1) ... [2021-10-29 04:53:08,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08" (1/1) ... [2021-10-29 04:53:08,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08" (1/1) ... [2021-10-29 04:53:08,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08" (1/1) ... [2021-10-29 04:53:08,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:53:08,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:53:08,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:53:08,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:53:08,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08" (1/1) ... [2021-10-29 04:53:09,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:53:09,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:53:09,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:53:09,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:53:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:53:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:53:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:53:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 04:53:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:53:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:53:09,418 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:53:09,419 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-29 04:53:09,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:09 BoogieIcfgContainer [2021-10-29 04:53:09,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:53:09,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:53:09,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:53:09,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:53:09,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:53:08" (1/3) ... [2021-10-29 04:53:09,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8fa660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:53:09, skipping insertion in model container [2021-10-29 04:53:09,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:53:08" (2/3) ... [2021-10-29 04:53:09,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8fa660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:53:09, skipping insertion in model container [2021-10-29 04:53:09,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:09" (3/3) ... [2021-10-29 04:53:09,432 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test9.i [2021-10-29 04:53:09,439 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:53:09,445 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-29 04:53:09,529 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:53:09,539 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 04:53:09,539 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-29 04:53:09,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 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 04:53:09,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:53:09,577 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:09,578 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:09,579 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 04:53:09,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:09,587 INFO L85 PathProgramCache]: Analyzing trace with hash 119383820, now seen corresponding path program 1 times [2021-10-29 04:53:09,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:09,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751336585] [2021-10-29 04:53:09,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:09,601 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:09,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:09,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:09,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:53:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:09,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 04:53:09,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:09,855 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 04:53:09,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:09,928 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 04:53:09,929 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:09,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751336585] [2021-10-29 04:53:09,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751336585] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:09,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:09,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 04:53:09,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506603378] [2021-10-29 04:53:09,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:53:09,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:09,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:53:09,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:53:09,965 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 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 2.6666666666666665) internal successors, (8), 4 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 04:53:10,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:10,036 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-10-29 04:53:10,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:53:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) Word has length 8 [2021-10-29 04:53:10,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:10,050 INFO L225 Difference]: With dead ends: 17 [2021-10-29 04:53:10,050 INFO L226 Difference]: Without dead ends: 15 [2021-10-29 04:53:10,052 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 04:53:10,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-29 04:53:10,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-29 04:53:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 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 04:53:10,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-29 04:53:10,082 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 8 [2021-10-29 04:53:10,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:10,083 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-29 04:53:10,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 04:53:10,083 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-10-29 04:53:10,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:53:10,084 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:10,084 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:10,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:10,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:10,300 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 04:53:10,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:10,302 INFO L85 PathProgramCache]: Analyzing trace with hash -594068823, now seen corresponding path program 1 times [2021-10-29 04:53:10,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:10,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40732720] [2021-10-29 04:53:10,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:10,304 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:10,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:10,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:10,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:53:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:10,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:53:10,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:10,599 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 04:53:10,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:10,680 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 04:53:10,681 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:10,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40732720] [2021-10-29 04:53:10,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40732720] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:10,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:10,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-10-29 04:53:10,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109807345] [2021-10-29 04:53:10,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:53:10,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:10,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:53:10,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:53:10,692 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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 04:53:10,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:10,920 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2021-10-29 04:53:10,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:53:10,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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 9 [2021-10-29 04:53:10,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:10,923 INFO L225 Difference]: With dead ends: 25 [2021-10-29 04:53:10,923 INFO L226 Difference]: Without dead ends: 25 [2021-10-29 04:53:10,924 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2021-10-29 04:53:10,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-29 04:53:10,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2021-10-29 04:53:10,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 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 04:53:10,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-10-29 04:53:10,929 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 9 [2021-10-29 04:53:10,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:10,930 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-10-29 04:53:10,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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 04:53:10,930 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-10-29 04:53:10,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:53:10,931 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:10,931 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:10,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:11,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:11,145 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-29 04:53:11,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:11,147 INFO L85 PathProgramCache]: Analyzing trace with hash -594059884, now seen corresponding path program 1 times [2021-10-29 04:53:11,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:11,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77751079] [2021-10-29 04:53:11,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:11,148 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:11,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:11,150 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:11,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:53:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:11,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 04:53:11,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:11,296 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 04:53:11,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:11,335 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 04:53:11,336 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:11,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77751079] [2021-10-29 04:53:11,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77751079] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:11,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:11,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 04:53:11,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068355413] [2021-10-29 04:53:11,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:53:11,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:11,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:53:11,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:53:11,352 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 04:53:11,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:11,391 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-10-29 04:53:11,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:53:11,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-10-29 04:53:11,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:11,396 INFO L225 Difference]: With dead ends: 28 [2021-10-29 04:53:11,396 INFO L226 Difference]: Without dead ends: 28 [2021-10-29 04:53:11,396 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 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 04:53:11,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-29 04:53:11,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2021-10-29 04:53:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 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 04:53:11,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-10-29 04:53:11,407 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2021-10-29 04:53:11,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:11,408 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-10-29 04:53:11,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 04:53:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-10-29 04:53:11,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:53:11,410 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:11,410 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:11,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:11,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:11,632 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-29 04:53:11,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:11,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1182794520, now seen corresponding path program 1 times [2021-10-29 04:53:11,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:11,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915016095] [2021-10-29 04:53:11,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:11,633 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:11,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:11,635 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:11,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:53:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:11,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:53:11,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:11,735 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 04:53:11,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:11,764 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 04:53:11,765 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:11,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915016095] [2021-10-29 04:53:11,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915016095] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:11,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:11,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:53:11,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426169910] [2021-10-29 04:53:11,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:53:11,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:11,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:53:11,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:53:11,768 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 04:53:11,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:11,786 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2021-10-29 04:53:11,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:53:11,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) Word has length 9 [2021-10-29 04:53:11,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:11,788 INFO L225 Difference]: With dead ends: 26 [2021-10-29 04:53:11,788 INFO L226 Difference]: Without dead ends: 24 [2021-10-29 04:53:11,788 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:53:11,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-29 04:53:11,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2021-10-29 04:53:11,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 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 04:53:11,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-29 04:53:11,792 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2021-10-29 04:53:11,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:11,792 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-29 04:53:11,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 04:53:11,792 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-29 04:53:11,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:53:11,793 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:11,793 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:11,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:12,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:12,008 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-29 04:53:12,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:12,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1236264274, now seen corresponding path program 1 times [2021-10-29 04:53:12,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:12,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180362010] [2021-10-29 04:53:12,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:12,010 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:12,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:12,013 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:12,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:53:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:12,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 04:53:12,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:12,123 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 04:53:12,182 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 04:53:12,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:12,253 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 04:53:12,254 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:12,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180362010] [2021-10-29 04:53:12,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180362010] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:12,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:12,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 04:53:12,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036679375] [2021-10-29 04:53:12,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:53:12,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:12,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:53:12,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:53:12,259 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 04:53:12,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:12,325 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-29 04:53:12,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:53:12,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2021-10-29 04:53:12,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:12,327 INFO L225 Difference]: With dead ends: 21 [2021-10-29 04:53:12,329 INFO L226 Difference]: Without dead ends: 21 [2021-10-29 04:53:12,330 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 1 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 04:53:12,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-29 04:53:12,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-29 04:53:12,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 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 04:53:12,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-10-29 04:53:12,339 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 10 [2021-10-29 04:53:12,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:12,340 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-29 04:53:12,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 04:53:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-10-29 04:53:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:53:12,345 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:12,345 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:12,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-29 04:53:12,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:12,549 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-29 04:53:12,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:12,550 INFO L85 PathProgramCache]: Analyzing trace with hash -2045610900, now seen corresponding path program 1 times [2021-10-29 04:53:12,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:12,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747759630] [2021-10-29 04:53:12,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:12,551 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:12,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:12,552 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:12,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 04:53:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:12,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:53:12,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:12,728 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 04:53:12,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:12,774 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 04:53:12,774 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:12,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747759630] [2021-10-29 04:53:12,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747759630] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:12,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:12,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 04:53:12,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149254729] [2021-10-29 04:53:12,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:53:12,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:12,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:53:12,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:53:12,778 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 04:53:12,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:12,827 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-10-29 04:53:12,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:53:12,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Word has length 10 [2021-10-29 04:53:12,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:12,831 INFO L225 Difference]: With dead ends: 23 [2021-10-29 04:53:12,831 INFO L226 Difference]: Without dead ends: 23 [2021-10-29 04:53:12,831 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 04:53:12,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-29 04:53:12,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2021-10-29 04:53:12,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 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 04:53:12,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-10-29 04:53:12,847 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2021-10-29 04:53:12,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:12,864 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-10-29 04:53:12,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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 04:53:12,865 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-10-29 04:53:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:53:12,866 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:12,866 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:12,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:13,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:13,081 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-29 04:53:13,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:13,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1655975602, now seen corresponding path program 1 times [2021-10-29 04:53:13,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:13,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492522403] [2021-10-29 04:53:13,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:13,083 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:13,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:13,084 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:13,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 04:53:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:13,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 04:53:13,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:13,374 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 04:53:13,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:18,015 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 04:53:18,015 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:18,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492522403] [2021-10-29 04:53:18,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492522403] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:18,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:18,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 04:53:18,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762735104] [2021-10-29 04:53:18,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 04:53:18,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:18,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 04:53:18,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2021-10-29 04:53:18,019 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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 04:53:18,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:18,253 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-10-29 04:53:18,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:53:18,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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 12 [2021-10-29 04:53:18,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:18,254 INFO L225 Difference]: With dead ends: 22 [2021-10-29 04:53:18,254 INFO L226 Difference]: Without dead ends: 13 [2021-10-29 04:53:18,255 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=40, Invalid=90, Unknown=2, NotChecked=0, Total=132 [2021-10-29 04:53:18,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-29 04:53:18,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-29 04:53:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 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 04:53:18,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-29 04:53:18,257 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 12 [2021-10-29 04:53:18,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:18,257 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-29 04:53:18,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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 04:53:18,257 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-29 04:53:18,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:53:18,258 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:53:18,258 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:18,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 04:53:18,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:18,466 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-10-29 04:53:18,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:53:18,466 INFO L85 PathProgramCache]: Analyzing trace with hash 453601966, now seen corresponding path program 1 times [2021-10-29 04:53:18,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:53:18,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659741096] [2021-10-29 04:53:18,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:53:18,467 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:53:18,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:53:18,468 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:53:18,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 04:53:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:53:18,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 04:53:18,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:53:18,610 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 04:53:18,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:53:18,672 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 04:53:18,672 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:53:18,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659741096] [2021-10-29 04:53:18,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659741096] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:53:18,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:53:18,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 04:53:18,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407021396] [2021-10-29 04:53:18,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:53:18,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:53:18,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:53:18,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:53:18,675 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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 04:53:18,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:53:18,697 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-10-29 04:53:18,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:53:18,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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 12 [2021-10-29 04:53:18,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:53:18,698 INFO L225 Difference]: With dead ends: 7 [2021-10-29 04:53:18,698 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:53:18,698 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:53:18,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:53:18,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:53:18,699 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 04:53:18,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:53:18,700 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-29 04:53:18,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:53:18,700 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:53:18,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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 04:53:18,701 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:53:18,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:53:18,704 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 04:53:18,705 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 04:53:18,705 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 04:53:18,706 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:53:18,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-29 04:53:18,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:53:18,923 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:53:18,926 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:53:18,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:53:18 BoogieIcfgContainer [2021-10-29 04:53:18,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:53:18,935 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:53:18,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:53:18,935 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:53:18,936 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:53:09" (3/4) ... [2021-10-29 04:53:18,939 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:53:18,955 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-29 04:53:18,956 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 04:53:18,956 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:53:19,015 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:53:19,015 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:53:19,018 INFO L168 Benchmark]: Toolchain (without parser) took 10941.56 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 45.7 MB in the beginning and 33.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 35.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:19,018 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 67.1 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:53:19,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.89 ms. Allocated memory is still 67.1 MB. Free memory was 45.4 MB in the beginning and 32.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:19,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.03 ms. Allocated memory is still 67.1 MB. Free memory was 32.7 MB in the beginning and 30.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:19,020 INFO L168 Benchmark]: Boogie Preprocessor took 63.30 ms. Allocated memory is still 67.1 MB. Free memory was 30.4 MB in the beginning and 29.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:19,021 INFO L168 Benchmark]: RCFGBuilder took 429.83 ms. Allocated memory is still 67.1 MB. Free memory was 29.0 MB in the beginning and 41.4 MB in the end (delta: -12.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:19,021 INFO L168 Benchmark]: TraceAbstraction took 9510.07 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 40.8 MB in the beginning and 36.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:19,022 INFO L168 Benchmark]: Witness Printer took 80.98 ms. Allocated memory is still 92.3 MB. Free memory was 36.2 MB in the beginning and 33.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:53:19,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 67.1 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 784.89 ms. Allocated memory is still 67.1 MB. Free memory was 45.4 MB in the beginning and 32.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.03 ms. Allocated memory is still 67.1 MB. Free memory was 32.7 MB in the beginning and 30.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.30 ms. Allocated memory is still 67.1 MB. Free memory was 30.4 MB in the beginning and 29.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 429.83 ms. Allocated memory is still 67.1 MB. Free memory was 29.0 MB in the beginning and 41.4 MB in the end (delta: -12.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9510.07 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 40.8 MB in the beginning and 36.2 MB in the end (delta: 4.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. * Witness Printer took 80.98 ms. Allocated memory is still 92.3 MB. Free memory was 36.2 MB in the beginning and 33.4 MB in the end (delta: 2.8 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: 766]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 766]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 766]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 775]: 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, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 108 SDtfs, 146 SDslu, 115 SDs, 0 SdLazy, 147 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=5, InterpolantAutomatonStates: 38, 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, 8 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 142 ConstructedInterpolants, 3 QuantifiedInterpolants, 574 SizeOfPredicates, 10 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 04:53:19,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d735969-a545-4cbb-aede-33513e32cb9d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...