./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-memsafety/fillarray.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI --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 317acdded5b2f05710e753bf8fd3c2308f1aec62 ............................................................................................................................................. 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_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI --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 317acdded5b2f05710e753bf8fd3c2308f1aec62 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:27:10,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:10,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:10,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:10,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:10,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:10,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:10,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:10,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:10,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:10,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:10,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:10,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:10,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:10,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:10,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:10,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:10,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:10,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:10,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:10,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:10,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:10,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:10,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:10,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:10,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:10,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:10,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:10,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:10,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:10,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:10,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:10,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:10,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:10,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:10,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:10,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:10,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:10,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:10,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:10,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:10,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:27:10,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:10,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:10,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:10,468 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:10,469 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:10,469 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:10,469 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:27:10,470 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:10,470 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:10,470 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:27:10,472 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:27:10,472 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:10,472 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:27:10,473 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:27:10,473 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:27:10,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:27:10,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:27:10,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:10,476 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:10,476 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:27:10,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:27:10,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:10,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:10,477 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:27:10,478 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:27:10,478 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:27:10,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:10,480 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:10,481 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:10,481 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:10,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:10,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:10,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:10,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:10,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:10,483 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:27:10,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:27:10,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:10,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:10,484 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_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 317acdded5b2f05710e753bf8fd3c2308f1aec62 [2021-10-11 02:27:10,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:10,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:10,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:10,902 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:10,903 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:10,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-10-11 02:27:11,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/data/8d3a24eb1/35e764fe481d4cd4b2f630b7976ea74c/FLAG5d67506e9 [2021-10-11 02:27:11,746 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:11,747 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-10-11 02:27:11,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/data/8d3a24eb1/35e764fe481d4cd4b2f630b7976ea74c/FLAG5d67506e9 [2021-10-11 02:27:11,939 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/data/8d3a24eb1/35e764fe481d4cd4b2f630b7976ea74c [2021-10-11 02:27:11,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:11,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:11,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:11,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:11,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:11,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:11" (1/1) ... [2021-10-11 02:27:11,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47dc10d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:11, skipping insertion in model container [2021-10-11 02:27:11,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:11" (1/1) ... [2021-10-11 02:27:11,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:12,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:12,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:12,702 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) [2021-10-11 02:27:12,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@eeb2685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12, skipping insertion in model container [2021-10-11 02:27:12,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:12,704 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:27:12,707 INFO L168 Benchmark]: Toolchain (without parser) took 758.09 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 58.9 MB in the beginning and 100.4 MB in the end (delta: -41.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:12,711 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 94.4 MB. Free memory is still 49.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:12,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.97 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 58.8 MB in the beginning and 100.4 MB in the end (delta: -41.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:12,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 94.4 MB. Free memory is still 49.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 752.97 ms. Allocated memory was 94.4 MB in the beginning and 127.9 MB in the end (delta: 33.6 MB). Free memory was 58.8 MB in the beginning and 100.4 MB in the end (delta: -41.7 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: 1041]: 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 0.2.0-7b2dab5 [2021-10-11 02:27:15,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:15,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:15,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:15,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:15,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:15,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:15,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:15,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:15,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:15,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:15,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:15,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:15,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:15,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:15,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:15,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:15,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:15,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:15,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:15,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:15,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:15,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:15,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:15,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:15,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:15,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:15,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:15,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:15,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:15,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:15,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:15,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:15,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:15,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:15,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:15,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:15,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:15,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:15,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:15,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:15,478 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-11 02:27:15,520 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:15,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:15,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:15,522 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:15,522 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:15,523 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:15,523 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:15,523 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:15,523 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:15,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:27:15,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:27:15,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:15,528 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:15,528 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:27:15,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:27:15,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:15,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:15,529 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:27:15,529 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:27:15,530 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:27:15,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:15,530 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:15,530 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:27:15,531 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:27:15,531 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:15,531 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:15,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:15,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:27:15,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:15,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:15,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:15,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:15,534 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:27:15,534 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:27:15,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:15,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:15,535 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_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 317acdded5b2f05710e753bf8fd3c2308f1aec62 [2021-10-11 02:27:16,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:16,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:16,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:16,055 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:16,055 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:16,056 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-10-11 02:27:16,131 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/data/02958e42f/22d23cab42154d39b365ad4fc14b96f0/FLAG791a5ef27 [2021-10-11 02:27:16,888 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:16,898 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/sv-benchmarks/c/pthread-memsafety/fillarray.i [2021-10-11 02:27:16,944 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/data/02958e42f/22d23cab42154d39b365ad4fc14b96f0/FLAG791a5ef27 [2021-10-11 02:27:17,115 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/data/02958e42f/22d23cab42154d39b365ad4fc14b96f0 [2021-10-11 02:27:17,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:17,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:17,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:17,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:17,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:17,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:17" (1/1) ... [2021-10-11 02:27:17,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288e90cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:17, skipping insertion in model container [2021-10-11 02:27:17,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:17" (1/1) ... [2021-10-11 02:27:17,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:17,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:17,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:17,846 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:27:17,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:17,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:17,896 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:17,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:18,136 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:18,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:18 WrapperNode [2021-10-11 02:27:18,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:18,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:18,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:18,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:18,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:18" (1/1) ... [2021-10-11 02:27:18,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:18" (1/1) ... [2021-10-11 02:27:18,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:18,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:18,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:18,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:18,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:18" (1/1) ... [2021-10-11 02:27:18,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:18" (1/1) ... [2021-10-11 02:27:18,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:18" (1/1) ... [2021-10-11 02:27:18,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:18" (1/1) ... [2021-10-11 02:27:18,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:18" (1/1) ... [2021-10-11 02:27:18,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:18" (1/1) ... [2021-10-11 02:27:18,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:18" (1/1) ... [2021-10-11 02:27:18,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:18,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:18,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:18,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:18,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:18" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-10-11 02:27:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-10-11 02:27:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-10-11 02:27:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-10-11 02:27:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:27:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:27:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:27:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:18,377 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 02:27:19,098 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:19,098 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 02:27:19,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:19 BoogieIcfgContainer [2021-10-11 02:27:19,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:19,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:19,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:19,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:19,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:17" (1/3) ... [2021-10-11 02:27:19,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccfaf35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:19, skipping insertion in model container [2021-10-11 02:27:19,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:18" (2/3) ... [2021-10-11 02:27:19,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccfaf35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:19, skipping insertion in model container [2021-10-11 02:27:19,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:19" (3/3) ... [2021-10-11 02:27:19,118 INFO L111 eAbstractionObserver]: Analyzing ICFG fillarray.i [2021-10-11 02:27:19,133 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:19,137 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2021-10-11 02:27:19,138 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:27:19,181 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,182 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,182 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,182 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,183 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,183 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,183 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,184 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,184 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,184 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,184 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,185 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,185 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,185 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,186 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,186 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,187 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,187 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,187 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,188 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,188 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,189 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,191 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,191 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,191 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,191 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,193 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,193 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,194 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,195 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,196 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,196 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,197 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,197 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,198 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,198 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,199 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,199 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,199 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,199 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,200 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,200 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,200 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,200 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,201 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,201 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,206 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,206 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,206 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,207 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,208 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,208 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,208 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,208 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,208 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,209 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,209 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,210 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,210 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,212 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,212 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,212 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,213 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,213 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,213 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,213 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,214 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,214 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,218 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,219 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~pre3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,219 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,219 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,220 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~a~1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,226 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~pre2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,226 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,226 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,227 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,227 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,227 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,227 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~a~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:27:19,232 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-11 02:27:19,244 INFO L253 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-10-11 02:27:19,279 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:19,281 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:27:19,282 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:19,282 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:19,285 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:19,286 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:19,286 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:19,286 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:19,302 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:27:19,304 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 79 transitions, 168 flow [2021-10-11 02:27:19,308 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 79 transitions, 168 flow [2021-10-11 02:27:19,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 79 transitions, 168 flow [2021-10-11 02:27:19,381 INFO L129 PetriNetUnfolder]: 4/82 cut-off events. [2021-10-11 02:27:19,381 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-11 02:27:19,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 82 events. 4/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 122 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2021-10-11 02:27:19,391 INFO L116 LiptonReduction]: Number of co-enabled transitions 1404 [2021-10-11 02:27:19,875 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-10-11 02:27:20,147 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-10-11 02:27:20,650 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-10-11 02:27:20,815 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-10-11 02:27:21,145 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-10-11 02:27:21,370 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-10-11 02:27:23,989 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-10-11 02:27:24,190 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-10-11 02:27:25,987 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2021-10-11 02:27:26,121 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-10-11 02:27:26,339 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-10-11 02:27:26,464 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-10-11 02:27:27,208 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-10-11 02:27:27,441 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-10-11 02:27:27,645 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-10-11 02:27:27,813 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-10-11 02:27:29,036 WARN L197 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2021-10-11 02:27:29,382 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-10-11 02:27:30,103 WARN L197 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2021-10-11 02:27:30,368 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-10-11 02:27:30,654 INFO L131 LiptonReduction]: Checked pairs total: 3493 [2021-10-11 02:27:30,654 INFO L133 LiptonReduction]: Total number of compositions: 67 [2021-10-11 02:27:30,660 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 80 flow [2021-10-11 02:27:30,696 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 615 states. [2021-10-11 02:27:30,698 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states. [2021-10-11 02:27:30,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-11 02:27:30,703 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:30,704 INFO L422 BasicCegarLoop]: trace histogram [1] [2021-10-11 02:27:30,704 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0REQUIRES_VIOLATION]=== [2021-10-11 02:27:30,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:30,710 INFO L82 PathProgramCache]: Analyzing trace with hash 303, now seen corresponding path program 1 times [2021-10-11 02:27:30,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:30,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507785609] [2021-10-11 02:27:30,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:30,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:27:30,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:30,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:30,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:30,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507785609] [2021-10-11 02:27:30,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:30,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-10-11 02:27:30,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17758994] [2021-10-11 02:27:30,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:27:30,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:30,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:27:30,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:27:30,836 INFO L87 Difference]: Start difference. First operand 615 states. Second operand 2 states. [2021-10-11 02:27:30,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:30,878 INFO L93 Difference]: Finished difference Result 613 states and 1733 transitions. [2021-10-11 02:27:30,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:27:30,879 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2021-10-11 02:27:30,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:30,900 INFO L225 Difference]: With dead ends: 613 [2021-10-11 02:27:30,901 INFO L226 Difference]: Without dead ends: 611 [2021-10-11 02:27:30,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:27:30,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2021-10-11 02:27:30,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2021-10-11 02:27:30,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2021-10-11 02:27:31,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1729 transitions. [2021-10-11 02:27:31,004 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1729 transitions. Word has length 1 [2021-10-11 02:27:31,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:31,005 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1729 transitions. [2021-10-11 02:27:31,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:27:31,005 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1729 transitions. [2021-10-11 02:27:31,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:27:31,006 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:31,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:27:31,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:27:31,211 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0REQUIRES_VIOLATION]=== [2021-10-11 02:27:31,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:31,212 INFO L82 PathProgramCache]: Analyzing trace with hash 9464, now seen corresponding path program 1 times [2021-10-11 02:27:31,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:31,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31655855] [2021-10-11 02:27:31,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:31,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:27:31,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:31,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:31,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31655855] [2021-10-11 02:27:31,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:31,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:27:31,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453059257] [2021-10-11 02:27:31,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:31,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:31,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:31,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:31,297 INFO L87 Difference]: Start difference. First operand 611 states and 1729 transitions. Second operand 3 states. [2021-10-11 02:27:31,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:31,424 INFO L93 Difference]: Finished difference Result 610 states and 1728 transitions. [2021-10-11 02:27:31,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:31,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2021-10-11 02:27:31,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:31,433 INFO L225 Difference]: With dead ends: 610 [2021-10-11 02:27:31,433 INFO L226 Difference]: Without dead ends: 609 [2021-10-11 02:27:31,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:31,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2021-10-11 02:27:31,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2021-10-11 02:27:31,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2021-10-11 02:27:31,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 1727 transitions. [2021-10-11 02:27:31,522 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 1727 transitions. Word has length 2 [2021-10-11 02:27:31,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:31,523 INFO L481 AbstractCegarLoop]: Abstraction has 609 states and 1727 transitions. [2021-10-11 02:27:31,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:31,523 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 1727 transitions. [2021-10-11 02:27:31,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:27:31,523 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:31,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:27:31,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:27:31,738 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0REQUIRES_VIOLATION]=== [2021-10-11 02:27:31,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:31,738 INFO L82 PathProgramCache]: Analyzing trace with hash 295877, now seen corresponding path program 1 times [2021-10-11 02:27:31,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:31,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813367514] [2021-10-11 02:27:31,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:31,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:27:31,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:31,931 INFO L348 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-10-11 02:27:31,931 INFO L382 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 2 case distinctions, treesize of input 12 treesize of output 16 [2021-10-11 02:27:31,936 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:27:31,946 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:27:31,951 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-10-11 02:27:31,952 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:12, output treesize:20 [2021-10-11 02:27:31,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:31,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:31,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813367514] [2021-10-11 02:27:31,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:31,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:27:31,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402264745] [2021-10-11 02:27:31,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:31,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:31,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:31,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:31,983 INFO L87 Difference]: Start difference. First operand 609 states and 1727 transitions. Second operand 3 states. [2021-10-11 02:27:32,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:32,082 INFO L93 Difference]: Finished difference Result 601 states and 1711 transitions. [2021-10-11 02:27:32,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:32,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:27:32,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:32,091 INFO L225 Difference]: With dead ends: 601 [2021-10-11 02:27:32,095 INFO L226 Difference]: Without dead ends: 601 [2021-10-11 02:27:32,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:32,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2021-10-11 02:27:32,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2021-10-11 02:27:32,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2021-10-11 02:27:32,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1711 transitions. [2021-10-11 02:27:32,143 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1711 transitions. Word has length 3 [2021-10-11 02:27:32,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:32,143 INFO L481 AbstractCegarLoop]: Abstraction has 601 states and 1711 transitions. [2021-10-11 02:27:32,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:32,143 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1711 transitions. [2021-10-11 02:27:32,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:27:32,144 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:32,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:27:32,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:27:32,362 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0REQUIRES_VIOLATION]=== [2021-10-11 02:27:32,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:32,363 INFO L82 PathProgramCache]: Analyzing trace with hash 295878, now seen corresponding path program 1 times [2021-10-11 02:27:32,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:32,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7857946] [2021-10-11 02:27:32,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:32,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:27:32,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:32,523 INFO L348 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2021-10-11 02:27:32,524 INFO L382 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 2 case distinctions, treesize of input 12 treesize of output 33 [2021-10-11 02:27:32,529 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:27:32,578 INFO L625 ElimStorePlain]: treesize reduction 10, result has 73.7 percent of original size [2021-10-11 02:27:32,588 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 02:27:32,588 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:16, output treesize:16 [2021-10-11 02:27:32,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:32,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:32,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7857946] [2021-10-11 02:27:32,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:32,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:27:32,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743938431] [2021-10-11 02:27:32,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:32,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:32,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:32,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:32,618 INFO L87 Difference]: Start difference. First operand 601 states and 1711 transitions. Second operand 3 states. [2021-10-11 02:27:32,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:32,721 INFO L93 Difference]: Finished difference Result 593 states and 1695 transitions. [2021-10-11 02:27:32,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:32,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:27:32,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:32,728 INFO L225 Difference]: With dead ends: 593 [2021-10-11 02:27:32,728 INFO L226 Difference]: Without dead ends: 593 [2021-10-11 02:27:32,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:32,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-10-11 02:27:32,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2021-10-11 02:27:32,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2021-10-11 02:27:32,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1695 transitions. [2021-10-11 02:27:32,754 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1695 transitions. Word has length 3 [2021-10-11 02:27:32,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:32,754 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 1695 transitions. [2021-10-11 02:27:32,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:32,755 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1695 transitions. [2021-10-11 02:27:32,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:27:32,755 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:32,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:27:32,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:27:32,976 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0REQUIRES_VIOLATION]=== [2021-10-11 02:27:32,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:32,977 INFO L82 PathProgramCache]: Analyzing trace with hash 284343408, now seen corresponding path program 1 times [2021-10-11 02:27:32,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:32,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75086645] [2021-10-11 02:27:32,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:33,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:27:33,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:33,095 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:33,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75086645] [2021-10-11 02:27:33,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:33,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:27:33,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374562720] [2021-10-11 02:27:33,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:33,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:33,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:33,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:33,097 INFO L87 Difference]: Start difference. First operand 593 states and 1695 transitions. Second operand 3 states. [2021-10-11 02:27:33,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:33,114 INFO L93 Difference]: Finished difference Result 529 states and 1503 transitions. [2021-10-11 02:27:33,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:33,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:27:33,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:33,120 INFO L225 Difference]: With dead ends: 529 [2021-10-11 02:27:33,120 INFO L226 Difference]: Without dead ends: 529 [2021-10-11 02:27:33,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:33,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2021-10-11 02:27:33,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2021-10-11 02:27:33,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2021-10-11 02:27:33,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 1503 transitions. [2021-10-11 02:27:33,149 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 1503 transitions. Word has length 5 [2021-10-11 02:27:33,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:33,151 INFO L481 AbstractCegarLoop]: Abstraction has 529 states and 1503 transitions. [2021-10-11 02:27:33,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:33,151 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 1503 transitions. [2021-10-11 02:27:33,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:27:33,151 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:33,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:27:33,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:27:33,367 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0REQUIRES_VIOLATION]=== [2021-10-11 02:27:33,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:33,368 INFO L82 PathProgramCache]: Analyzing trace with hash 284343377, now seen corresponding path program 1 times [2021-10-11 02:27:33,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:33,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172829876] [2021-10-11 02:27:33,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:33,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:27:33,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:33,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:33,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172829876] [2021-10-11 02:27:33,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:33,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:27:33,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594835807] [2021-10-11 02:27:33,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:33,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:33,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:33,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:33,473 INFO L87 Difference]: Start difference. First operand 529 states and 1503 transitions. Second operand 3 states. [2021-10-11 02:27:33,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:33,492 INFO L93 Difference]: Finished difference Result 465 states and 1311 transitions. [2021-10-11 02:27:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:33,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:27:33,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:33,498 INFO L225 Difference]: With dead ends: 465 [2021-10-11 02:27:33,498 INFO L226 Difference]: Without dead ends: 465 [2021-10-11 02:27:33,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:33,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2021-10-11 02:27:33,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2021-10-11 02:27:33,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2021-10-11 02:27:33,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 1311 transitions. [2021-10-11 02:27:33,517 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 1311 transitions. Word has length 5 [2021-10-11 02:27:33,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:33,517 INFO L481 AbstractCegarLoop]: Abstraction has 465 states and 1311 transitions. [2021-10-11 02:27:33,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:33,517 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 1311 transitions. [2021-10-11 02:27:33,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:27:33,518 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:33,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:27:33,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:27:33,732 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0REQUIRES_VIOLATION]=== [2021-10-11 02:27:33,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:33,733 INFO L82 PathProgramCache]: Analyzing trace with hash 284343410, now seen corresponding path program 1 times [2021-10-11 02:27:33,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:33,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92794961] [2021-10-11 02:27:33,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:33,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:27:33,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:33,872 INFO L348 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-10-11 02:27:33,872 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 23 [2021-10-11 02:27:33,875 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:27:33,888 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:27:33,895 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-10-11 02:27:33,895 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:22 [2021-10-11 02:27:33,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:33,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:33,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92794961] [2021-10-11 02:27:33,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:33,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:27:33,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376176526] [2021-10-11 02:27:33,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:33,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:33,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:33,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:33,987 INFO L87 Difference]: Start difference. First operand 465 states and 1311 transitions. Second operand 3 states. [2021-10-11 02:27:34,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:34,099 INFO L93 Difference]: Finished difference Result 401 states and 1119 transitions. [2021-10-11 02:27:34,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:34,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:27:34,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:34,105 INFO L225 Difference]: With dead ends: 401 [2021-10-11 02:27:34,105 INFO L226 Difference]: Without dead ends: 401 [2021-10-11 02:27:34,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:34,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-10-11 02:27:34,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2021-10-11 02:27:34,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2021-10-11 02:27:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 1119 transitions. [2021-10-11 02:27:34,131 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 1119 transitions. Word has length 5 [2021-10-11 02:27:34,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:34,131 INFO L481 AbstractCegarLoop]: Abstraction has 401 states and 1119 transitions. [2021-10-11 02:27:34,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:34,131 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 1119 transitions. [2021-10-11 02:27:34,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:27:34,133 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:34,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:34,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:27:34,350 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0REQUIRES_VIOLATION]=== [2021-10-11 02:27:34,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:34,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1621862996, now seen corresponding path program 1 times [2021-10-11 02:27:34,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:34,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358778019] [2021-10-11 02:27:34,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:34,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:27:34,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:34,506 INFO L348 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-10-11 02:27:34,506 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 23 [2021-10-11 02:27:34,510 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:27:34,524 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:27:34,531 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-10-11 02:27:34,531 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:22 [2021-10-11 02:27:34,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:34,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:34,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358778019] [2021-10-11 02:27:34,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:34,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:27:34,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053420346] [2021-10-11 02:27:34,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:27:34,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:34,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:27:34,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:27:34,681 INFO L87 Difference]: Start difference. First operand 401 states and 1119 transitions. Second operand 5 states. [2021-10-11 02:27:34,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:34,992 INFO L93 Difference]: Finished difference Result 391 states and 1091 transitions. [2021-10-11 02:27:34,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:27:34,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2021-10-11 02:27:34,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:34,996 INFO L225 Difference]: With dead ends: 391 [2021-10-11 02:27:34,997 INFO L226 Difference]: Without dead ends: 391 [2021-10-11 02:27:34,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:27:34,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2021-10-11 02:27:35,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2021-10-11 02:27:35,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2021-10-11 02:27:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 1091 transitions. [2021-10-11 02:27:35,012 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 1091 transitions. Word has length 7 [2021-10-11 02:27:35,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:35,012 INFO L481 AbstractCegarLoop]: Abstraction has 391 states and 1091 transitions. [2021-10-11 02:27:35,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:27:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 1091 transitions. [2021-10-11 02:27:35,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:27:35,014 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:35,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:35,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:27:35,232 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, t1Err0REQUIRES_VIOLATION, t1Err1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, t2Err1REQUIRES_VIOLATION, t2Err0REQUIRES_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0REQUIRES_VIOLATION]=== [2021-10-11 02:27:35,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:35,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1621862994, now seen corresponding path program 1 times [2021-10-11 02:27:35,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:35,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895211564] [2021-10-11 02:27:35,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:35,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:35,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:35,377 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:27:35,378 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:27:35,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:27:35,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:35 BasicIcfg [2021-10-11 02:27:35,604 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:35,605 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:35,605 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:35,605 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:35,605 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:19" (3/4) ... [2021-10-11 02:27:35,607 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:27:35,655 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_481d25d5-9a35-48b1-bc78-f3e0bb5a892b/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:27:35,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:35,658 INFO L168 Benchmark]: Toolchain (without parser) took 18527.21 ms. Allocated memory was 65.0 MB in the beginning and 161.5 MB in the end (delta: 96.5 MB). Free memory was 44.7 MB in the beginning and 64.4 MB in the end (delta: -19.7 MB). Peak memory consumption was 76.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:35,659 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 65.0 MB. Free memory is still 46.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:35,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1002.57 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 44.5 MB in the beginning and 69.6 MB in the end (delta: -25.1 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:35,660 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.75 ms. Allocated memory is still 90.2 MB. Free memory was 69.6 MB in the beginning and 67.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:35,660 INFO L168 Benchmark]: Boogie Preprocessor took 34.20 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 65.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:35,661 INFO L168 Benchmark]: RCFGBuilder took 841.24 ms. Allocated memory is still 90.2 MB. Free memory was 65.9 MB in the beginning and 68.7 MB in the end (delta: -2.8 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:35,663 INFO L168 Benchmark]: TraceAbstraction took 16493.58 ms. Allocated memory was 90.2 MB in the beginning and 161.5 MB in the end (delta: 71.3 MB). Free memory was 68.7 MB in the beginning and 66.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 73.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:35,663 INFO L168 Benchmark]: Witness Printer took 50.46 ms. Allocated memory is still 161.5 MB. Free memory was 66.5 MB in the beginning and 64.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:35,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 65.0 MB. Free memory is still 46.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1002.57 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 44.5 MB in the beginning and 69.6 MB in the end (delta: -25.1 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.75 ms. Allocated memory is still 90.2 MB. Free memory was 69.6 MB in the beginning and 67.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.20 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 65.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 841.24 ms. Allocated memory is still 90.2 MB. Free memory was 65.9 MB in the beginning and 68.7 MB in the end (delta: -2.8 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16493.58 ms. Allocated memory was 90.2 MB in the beginning and 161.5 MB in the end (delta: 71.3 MB). Free memory was 68.7 MB in the beginning and 66.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 73.1 MB. Max. memory is 16.1 GB. * Witness Printer took 50.46 ms. Allocated memory is still 161.5 MB. Free memory was 66.5 MB in the beginning and 64.4 MB in the end (delta: 2.2 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: PetriNetLargeBlockEncoding benchmarks 755 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 5 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.6s, 150 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 11.3s, 81 PlacesBefore, 39 PlacesAfterwards, 79 TransitionsBefore, 35 TransitionsAfterwards, 1404 CoEnabledTransitionPairs, 5 FixpointIterations, 34 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 3493 MoverChecksTotal - CounterExampleResult [Line: 1044]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1037] 0 int size; [L1038] 0 int ind; [L1039] 0 int j = 2, i = 1; [L1057] 0 size = __VERIFIER_nondet_int() [L1058] COND FALSE 0 !(size < 1 || size > 20) [L1061] 0 int *a = (int *)malloc(size); [L1062] 0 pthread_t id1, id2; [L1063] 0 ind = 0 [L1064] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [arg={-2147483648:0}, i=1, ind=0, j=2, size=2] [L1041] 1 int *a = (int *)arg; VAL [a={-2147483648:0}, arg={-2147483648:0}, arg={-2147483648:0}, i=1, ind=0, j=2, size=2] [L1042] COND TRUE 1 ind < size - 1 VAL [a={-2147483648:0}, arg={-2147483648:0}, arg={-2147483648:0}, i=1, ind=0, j=2, size=2] [L1043] 1 ++ind [L1044] 1 a[ind] = i - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 75 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.4s, HoareTripleCheckerStatistics: 201 SDtfs, 170 SDslu, 88 SDs, 0 SdLazy, 121 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=615occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 23 ConstructedInterpolants, 10 QuantifiedInterpolants, 1059 SizeOfPredicates, 19 NumberOfNonLiveVariables, 277 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...