./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH --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 be381633e08917ff7523167eb47da4558cd865b57872b34c3877295f48e457c8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:58:17,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:58:17,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:58:17,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:58:17,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:58:17,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:58:17,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:58:17,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:58:17,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:58:17,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:58:17,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:58:17,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:58:17,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:58:17,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:58:17,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:58:17,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:58:17,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:58:17,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:58:17,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:58:17,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:58:17,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:58:17,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:58:17,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:58:17,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:58:17,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:58:17,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:58:17,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:58:17,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:58:17,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:58:17,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:58:17,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:58:17,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:58:17,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:58:17,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:58:17,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:58:17,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:58:17,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:58:17,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:58:17,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:58:17,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:58:17,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:58:17,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-03 04:58:17,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:58:17,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:58:17,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:58:17,514 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:58:17,514 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:58:17,515 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:58:17,515 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:58:17,515 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:58:17,515 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:58:17,516 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:58:17,517 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:58:17,517 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:58:17,517 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:58:17,518 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:58:17,518 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:58:17,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 04:58:17,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 04:58:17,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:58:17,519 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:58:17,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 04:58:17,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:58:17,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:58:17,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:58:17,521 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-03 04:58:17,521 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-03 04:58:17,521 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-03 04:58:17,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:58:17,523 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:58:17,523 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:58:17,523 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:58:17,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:58:17,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:58:17,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:58:17,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:58:17,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:58:17,525 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:58:17,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:58:17,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:58:17,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:58:17,526 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_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be381633e08917ff7523167eb47da4558cd865b57872b34c3877295f48e457c8 [2021-11-03 04:58:17,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:58:17,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:58:17,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:58:17,854 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:58:17,855 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:58:17,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/memsafety/test-0158-1.i [2021-11-03 04:58:17,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/data/eabef644e/acf458f0f4ed4e6e86bfd0a7c0dd5721/FLAG55b67e890 [2021-11-03 04:58:18,471 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:58:18,472 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/sv-benchmarks/c/memsafety/test-0158-1.i [2021-11-03 04:58:18,494 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/data/eabef644e/acf458f0f4ed4e6e86bfd0a7c0dd5721/FLAG55b67e890 [2021-11-03 04:58:18,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/data/eabef644e/acf458f0f4ed4e6e86bfd0a7c0dd5721 [2021-11-03 04:58:18,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:58:18,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:58:18,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:58:18,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:58:18,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:58:18,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:58:18" (1/1) ... [2021-11-03 04:58:18,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:18, skipping insertion in model container [2021-11-03 04:58:18,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:58:18" (1/1) ... [2021-11-03 04:58:18,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:58:18,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:58:19,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:58:19,145 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:58:19,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:58:19,227 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:58:19,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:19 WrapperNode [2021-11-03 04:58:19,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:58:19,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:58:19,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:58:19,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:58:19,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:19" (1/1) ... [2021-11-03 04:58:19,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:19" (1/1) ... [2021-11-03 04:58:19,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:58:19,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:58:19,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:58:19,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:58:19,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:19" (1/1) ... [2021-11-03 04:58:19,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:19" (1/1) ... [2021-11-03 04:58:19,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:19" (1/1) ... [2021-11-03 04:58:19,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:19" (1/1) ... [2021-11-03 04:58:19,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:19" (1/1) ... [2021-11-03 04:58:19,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:19" (1/1) ... [2021-11-03 04:58:19,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:19" (1/1) ... [2021-11-03 04:58:19,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:58:19,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:58:19,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:58:19,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:58:19,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:19" (1/1) ... [2021-11-03 04:58:19,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:58:19,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:58:19,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:58:19,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:58:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:58:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:58:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:58:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:58:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:58:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 04:58:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:58:19,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:58:19,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:58:19,699 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-03 04:58:19,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:58:19 BoogieIcfgContainer [2021-11-03 04:58:19,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:58:19,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:58:19,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:58:19,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:58:19,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:58:18" (1/3) ... [2021-11-03 04:58:19,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5e44f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:58:19, skipping insertion in model container [2021-11-03 04:58:19,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:19" (2/3) ... [2021-11-03 04:58:19,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5e44f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:58:19, skipping insertion in model container [2021-11-03 04:58:19,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:58:19" (3/3) ... [2021-11-03 04:58:19,710 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-1.i [2021-11-03 04:58:19,715 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:58:19,716 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-03 04:58:19,759 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:58:19,766 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:58:19,766 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-03 04:58:19,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 8 states have (on average 2.25) internal successors, (18), 18 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:19,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-03 04:58:19,785 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:19,786 INFO L513 BasicCegarLoop]: trace histogram [1, 1] [2021-11-03 04:58:19,786 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 6 more)] === [2021-11-03 04:58:19,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:19,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1678, now seen corresponding path program 1 times [2021-11-03 04:58:19,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:19,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129372036] [2021-11-03 04:58:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:19,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:20,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:20,060 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:20,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129372036] [2021-11-03 04:58:20,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129372036] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:20,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:20,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:58:20,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696783769] [2021-11-03 04:58:20,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:58:20,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:20,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:58:20,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:58:20,104 INFO L87 Difference]: Start difference. First operand has 19 states, 8 states have (on average 2.25) internal successors, (18), 18 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:20,150 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-11-03 04:58:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:58:20,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-03 04:58:20,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:20,160 INFO L225 Difference]: With dead ends: 16 [2021-11-03 04:58:20,161 INFO L226 Difference]: Without dead ends: 15 [2021-11-03 04:58:20,163 INFO L786 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 [2021-11-03 04:58:20,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-03 04:58:20,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-03 04:58:20,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 8 states have (on average 1.75) internal successors, (14), 14 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2021-11-03 04:58:20,191 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 2 [2021-11-03 04:58:20,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:20,192 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2021-11-03 04:58:20,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,192 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2021-11-03 04:58:20,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-03 04:58:20,193 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:20,193 INFO L513 BasicCegarLoop]: trace histogram [1, 1] [2021-11-03 04:58:20,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 04:58:20,194 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 6 more)] === [2021-11-03 04:58:20,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:20,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1679, now seen corresponding path program 1 times [2021-11-03 04:58:20,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:20,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911086281] [2021-11-03 04:58:20,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:20,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:20,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:20,294 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:20,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911086281] [2021-11-03 04:58:20,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911086281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:20,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:20,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:58:20,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017847703] [2021-11-03 04:58:20,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:58:20,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:20,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:58:20,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:58:20,300 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:20,320 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-11-03 04:58:20,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:58:20,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-03 04:58:20,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:20,322 INFO L225 Difference]: With dead ends: 12 [2021-11-03 04:58:20,322 INFO L226 Difference]: Without dead ends: 12 [2021-11-03 04:58:20,323 INFO L786 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 [2021-11-03 04:58:20,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-03 04:58:20,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-03 04:58:20,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-11-03 04:58:20,328 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 2 [2021-11-03 04:58:20,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:20,328 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-11-03 04:58:20,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,329 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-11-03 04:58:20,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 04:58:20,329 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:20,330 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 04:58:20,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 04:58:20,331 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 6 more)] === [2021-11-03 04:58:20,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:20,335 INFO L85 PathProgramCache]: Analyzing trace with hash 50621959, now seen corresponding path program 1 times [2021-11-03 04:58:20,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:20,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197265651] [2021-11-03 04:58:20,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:20,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:20,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:20,447 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:20,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197265651] [2021-11-03 04:58:20,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197265651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:20,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:20,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:58:20,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678025057] [2021-11-03 04:58:20,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:58:20,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:20,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:58:20,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:58:20,450 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:20,478 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-11-03 04:58:20,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:58:20,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-03 04:58:20,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:20,479 INFO L225 Difference]: With dead ends: 11 [2021-11-03 04:58:20,479 INFO L226 Difference]: Without dead ends: 11 [2021-11-03 04:58:20,479 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:58:20,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-03 04:58:20,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-03 04:58:20,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.25) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-11-03 04:58:20,482 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 5 [2021-11-03 04:58:20,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:20,482 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-11-03 04:58:20,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,482 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-11-03 04:58:20,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 04:58:20,483 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:20,483 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 04:58:20,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 04:58:20,483 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 6 more)] === [2021-11-03 04:58:20,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:20,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1569280775, now seen corresponding path program 1 times [2021-11-03 04:58:20,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:20,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326329416] [2021-11-03 04:58:20,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:20,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:20,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:20,549 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:20,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326329416] [2021-11-03 04:58:20,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326329416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:20,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:20,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:58:20,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187984114] [2021-11-03 04:58:20,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:58:20,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:20,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:58:20,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:58:20,552 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:20,592 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2021-11-03 04:58:20,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:58:20,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-03 04:58:20,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:20,593 INFO L225 Difference]: With dead ends: 10 [2021-11-03 04:58:20,593 INFO L226 Difference]: Without dead ends: 10 [2021-11-03 04:58:20,593 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:58:20,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-03 04:58:20,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-03 04:58:20,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2021-11-03 04:58:20,598 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2021-11-03 04:58:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:20,599 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2021-11-03 04:58:20,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,600 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2021-11-03 04:58:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 04:58:20,600 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:20,600 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:20,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 04:58:20,602 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 6 more)] === [2021-11-03 04:58:20,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:20,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1403063817, now seen corresponding path program 1 times [2021-11-03 04:58:20,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:20,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108335231] [2021-11-03 04:58:20,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:20,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:20,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:20,692 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:20,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108335231] [2021-11-03 04:58:20,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108335231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:20,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:20,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:58:20,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111868823] [2021-11-03 04:58:20,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:58:20,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:20,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:58:20,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:58:20,696 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:20,740 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2021-11-03 04:58:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:58:20,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-03 04:58:20,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:20,742 INFO L225 Difference]: With dead ends: 9 [2021-11-03 04:58:20,742 INFO L226 Difference]: Without dead ends: 9 [2021-11-03 04:58:20,743 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:58:20,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-03 04:58:20,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-03 04:58:20,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-11-03 04:58:20,745 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 7 [2021-11-03 04:58:20,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:20,746 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-11-03 04:58:20,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:20,746 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-11-03 04:58:20,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 04:58:20,747 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:20,747 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:20,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 04:58:20,747 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 6 more)] === [2021-11-03 04:58:20,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:20,748 INFO L85 PathProgramCache]: Analyzing trace with hash 545305418, now seen corresponding path program 1 times [2021-11-03 04:58:20,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:58:20,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394656642] [2021-11-03 04:58:20,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:20,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:58:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:21,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:21,009 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:58:21,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394656642] [2021-11-03 04:58:21,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394656642] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:21,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:21,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 04:58:21,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261071503] [2021-11-03 04:58:21,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:58:21,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:58:21,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:58:21,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:58:21,013 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:21,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:21,080 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-11-03 04:58:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:58:21,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-03 04:58:21,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:21,081 INFO L225 Difference]: With dead ends: 8 [2021-11-03 04:58:21,081 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 04:58:21,082 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:58:21,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 04:58:21,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 04:58:21,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:21,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 04:58:21,083 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-11-03 04:58:21,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:21,084 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 04:58:21,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:21,084 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 04:58:21,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 04:58:21,086 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-11-03 04:58:21,087 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-11-03 04:58:21,087 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-11-03 04:58:21,087 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-11-03 04:58:21,087 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-11-03 04:58:21,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-11-03 04:58:21,093 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-03 04:58:21,093 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-03 04:58:21,094 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE [2021-11-03 04:58:21,094 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-11-03 04:58:21,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 04:58:21,097 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-03 04:58:21,099 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:58:21,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:58:21 BoogieIcfgContainer [2021-11-03 04:58:21,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:58:21,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:58:21,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:58:21,103 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:58:21,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:58:19" (3/4) ... [2021-11-03 04:58:21,106 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 04:58:21,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-03 04:58:21,118 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-03 04:58:21,118 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-03 04:58:21,118 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:58:21,162 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:58:21,162 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:58:21,164 INFO L168 Benchmark]: Toolchain (without parser) took 2382.28 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 69.5 MB in the beginning and 85.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:21,164 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory is still 59.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:58:21,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.17 ms. Allocated memory is still 104.9 MB. Free memory was 69.3 MB in the beginning and 71.5 MB in the end (delta: -2.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:21,166 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.71 ms. Allocated memory is still 104.9 MB. Free memory was 71.5 MB in the beginning and 70.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:21,166 INFO L168 Benchmark]: Boogie Preprocessor took 34.00 ms. Allocated memory is still 104.9 MB. Free memory was 70.0 MB in the beginning and 68.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:58:21,166 INFO L168 Benchmark]: RCFGBuilder took 378.39 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 57.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:21,168 INFO L168 Benchmark]: TraceAbstraction took 1397.88 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 56.8 MB in the beginning and 87.1 MB in the end (delta: -30.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:58:21,169 INFO L168 Benchmark]: Witness Printer took 59.43 ms. Allocated memory is still 125.8 MB. Free memory was 87.1 MB in the beginning and 85.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:21,171 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory is still 59.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 445.17 ms. Allocated memory is still 104.9 MB. Free memory was 69.3 MB in the beginning and 71.5 MB in the end (delta: -2.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.71 ms. Allocated memory is still 104.9 MB. Free memory was 71.5 MB in the beginning and 70.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.00 ms. Allocated memory is still 104.9 MB. Free memory was 70.0 MB in the beginning and 68.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 378.39 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 57.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1397.88 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 56.8 MB in the beginning and 87.1 MB in the end (delta: -30.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 59.43 ms. Allocated memory is still 125.8 MB. Free memory was 87.1 MB in the beginning and 85.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 535]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 535]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 535]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 535]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 535]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 523]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 40 SDslu, 14 SDs, 0 SdLazy, 90 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 315 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-03 04:58:21,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f755c19-5c50-4aac-8da2-e0af2595cf7f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE