./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf75d7f1708750397c6bdac14ac08b964b10a95dcecc15b57a02c9969977c6ec ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:49:15,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:49:15,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:49:15,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:49:15,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:49:15,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:49:15,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:49:15,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:49:15,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:49:15,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:49:15,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:49:15,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:49:15,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:49:15,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:49:15,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:49:15,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:49:15,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:49:15,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:49:15,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:49:15,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:49:15,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:49:15,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:49:15,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:49:15,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:49:15,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:49:15,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:49:15,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:49:15,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:49:15,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:49:15,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:49:15,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:49:15,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:49:15,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:49:15,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:49:15,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:49:15,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:49:15,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:49:15,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:49:15,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:49:15,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:49:15,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:49:15,996 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 04:49:16,041 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:49:16,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:49:16,042 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:49:16,043 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:49:16,043 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:49:16,043 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:49:16,043 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:49:16,044 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:49:16,044 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:49:16,044 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:49:16,045 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:49:16,045 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:49:16,046 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:49:16,046 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:49:16,046 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:49:16,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:49:16,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:49:16,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:49:16,048 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:49:16,048 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:49:16,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:49:16,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:49:16,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:49:16,049 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:49:16,049 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:49:16,049 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:49:16,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:49:16,051 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:49:16,052 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:49:16,052 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:49:16,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:49:16,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:49:16,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:49:16,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:49:16,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:49:16,053 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:49:16,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:49:16,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:49:16,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:49:16,054 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_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf75d7f1708750397c6bdac14ac08b964b10a95dcecc15b57a02c9969977c6ec [2021-10-29 04:49:16,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:49:16,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:49:16,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:49:16,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:49:16,337 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:49:16,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2021-10-29 04:49:16,413 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/data/d8e480fea/9ba7e50cafbb4fc0894d7d9c4cf63dd4/FLAGa30398844 [2021-10-29 04:49:17,035 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:49:17,035 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2021-10-29 04:49:17,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/data/d8e480fea/9ba7e50cafbb4fc0894d7d9c4cf63dd4/FLAGa30398844 [2021-10-29 04:49:17,291 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/data/d8e480fea/9ba7e50cafbb4fc0894d7d9c4cf63dd4 [2021-10-29 04:49:17,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:49:17,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:49:17,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:49:17,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:49:17,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:49:17,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:49:17" (1/1) ... [2021-10-29 04:49:17,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ee62d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17, skipping insertion in model container [2021-10-29 04:49:17,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:49:17" (1/1) ... [2021-10-29 04:49:17,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:49:17,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:49:17,650 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c[29620,29633] [2021-10-29 04:49:17,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:49:17,663 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:49:17,757 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c[29620,29633] [2021-10-29 04:49:17,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:49:17,787 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:49:17,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17 WrapperNode [2021-10-29 04:49:17,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:49:17,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:49:17,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:49:17,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:49:17,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17" (1/1) ... [2021-10-29 04:49:17,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17" (1/1) ... [2021-10-29 04:49:17,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:49:17,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:49:17,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:49:17,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:49:17,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17" (1/1) ... [2021-10-29 04:49:17,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17" (1/1) ... [2021-10-29 04:49:17,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17" (1/1) ... [2021-10-29 04:49:17,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17" (1/1) ... [2021-10-29 04:49:17,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17" (1/1) ... [2021-10-29 04:49:17,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17" (1/1) ... [2021-10-29 04:49:18,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17" (1/1) ... [2021-10-29 04:49:18,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:49:18,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:49:18,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:49:18,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:49:18,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17" (1/1) ... [2021-10-29 04:49:18,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:49:18,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:49:18,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:49:18,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:49:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:49:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:49:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:49:18,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:49:18,352 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 04:49:18,362 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 04:49:18,387 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 04:49:18,407 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 04:49:18,415 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 04:49:18,421 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 04:49:18,440 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 04:49:18,453 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 04:49:18,457 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 04:49:18,460 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 04:49:18,470 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 04:49:18,486 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 04:49:19,410 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2021-10-29 04:49:19,411 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2021-10-29 04:49:19,411 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2021-10-29 04:49:19,411 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2021-10-29 04:49:19,411 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##219: assume false; [2021-10-29 04:49:19,411 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume !false; [2021-10-29 04:49:19,412 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2021-10-29 04:49:19,412 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2021-10-29 04:49:19,412 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##322: assume !false; [2021-10-29 04:49:19,412 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##321: assume false; [2021-10-29 04:49:19,412 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-29 04:49:19,412 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-29 04:49:19,413 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##191: assume false; [2021-10-29 04:49:19,413 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: assume !false; [2021-10-29 04:49:19,413 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume !false; [2021-10-29 04:49:19,413 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume false; [2021-10-29 04:49:19,413 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume false; [2021-10-29 04:49:19,413 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##141: assume !false; [2021-10-29 04:49:19,415 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##389: assume !false; [2021-10-29 04:49:19,415 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##388: assume false; [2021-10-29 04:49:19,415 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-10-29 04:49:19,415 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-10-29 04:49:19,415 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume !false; [2021-10-29 04:49:19,416 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume false; [2021-10-29 04:49:20,165 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:49:20,165 INFO L299 CfgBuilder]: Removed 152 assume(true) statements. [2021-10-29 04:49:20,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:49:20 BoogieIcfgContainer [2021-10-29 04:49:20,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:49:20,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:49:20,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:49:20,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:49:20,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:49:17" (1/3) ... [2021-10-29 04:49:20,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418d8138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:49:20, skipping insertion in model container [2021-10-29 04:49:20,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:17" (2/3) ... [2021-10-29 04:49:20,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418d8138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:49:20, skipping insertion in model container [2021-10-29 04:49:20,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:49:20" (3/3) ... [2021-10-29 04:49:20,183 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-1.c [2021-10-29 04:49:20,189 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:49:20,190 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-10-29 04:49:20,239 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:49:20,245 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:49:20,245 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-10-29 04:49:20,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 168 states have (on average 1.7857142857142858) internal successors, (300), 198 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:20,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:49:20,272 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:20,272 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 04:49:20,273 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:20,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:20,278 INFO L85 PathProgramCache]: Analyzing trace with hash 40730880, now seen corresponding path program 1 times [2021-10-29 04:49:20,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:20,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806355445] [2021-10-29 04:49:20,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:20,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:20,457 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:20,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806355445] [2021-10-29 04:49:20,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806355445] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:20,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:20,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:49:20,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332441371] [2021-10-29 04:49:20,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:49:20,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:20,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:49:20,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:20,487 INFO L87 Difference]: Start difference. First operand has 199 states, 168 states have (on average 1.7857142857142858) internal successors, (300), 198 states have internal predecessors, (300), 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, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:20,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:20,570 INFO L93 Difference]: Finished difference Result 202 states and 268 transitions. [2021-10-29 04:49:20,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:49:20,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2021-10-29 04:49:20,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:20,585 INFO L225 Difference]: With dead ends: 202 [2021-10-29 04:49:20,591 INFO L226 Difference]: Without dead ends: 200 [2021-10-29 04:49:20,593 INFO L786 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 [2021-10-29 04:49:20,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-10-29 04:49:20,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2021-10-29 04:49:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 168 states have (on average 1.5773809523809523) internal successors, (265), 197 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:20,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2021-10-29 04:49:20,667 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 4 [2021-10-29 04:49:20,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:20,668 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2021-10-29 04:49:20,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:20,668 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2021-10-29 04:49:20,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:49:20,669 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:20,669 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:20,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:49:20,670 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:20,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:20,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1913735773, now seen corresponding path program 1 times [2021-10-29 04:49:20,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:20,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282209671] [2021-10-29 04:49:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:20,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:20,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:20,756 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:20,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282209671] [2021-10-29 04:49:20,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282209671] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:20,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:20,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:49:20,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76916935] [2021-10-29 04:49:20,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:49:20,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:20,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:49:20,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:20,766 INFO L87 Difference]: Start difference. First operand 198 states and 265 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:20,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:20,914 INFO L93 Difference]: Finished difference Result 186 states and 252 transitions. [2021-10-29 04:49:20,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:49:20,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-29 04:49:20,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:20,920 INFO L225 Difference]: With dead ends: 186 [2021-10-29 04:49:20,920 INFO L226 Difference]: Without dead ends: 186 [2021-10-29 04:49:20,921 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:20,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-10-29 04:49:20,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 183. [2021-10-29 04:49:20,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 163 states have (on average 1.5337423312883436) internal successors, (250), 182 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:20,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 250 transitions. [2021-10-29 04:49:20,939 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 250 transitions. Word has length 9 [2021-10-29 04:49:20,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:20,939 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 250 transitions. [2021-10-29 04:49:20,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:20,939 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 250 transitions. [2021-10-29 04:49:20,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:49:20,940 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:20,940 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:20,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:49:20,941 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:20,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:20,944 INFO L85 PathProgramCache]: Analyzing trace with hash -662265497, now seen corresponding path program 1 times [2021-10-29 04:49:20,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:20,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980529344] [2021-10-29 04:49:20,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:20,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:21,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:21,028 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:21,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980529344] [2021-10-29 04:49:21,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980529344] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:21,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:21,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 04:49:21,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458683481] [2021-10-29 04:49:21,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:49:21,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:21,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:49:21,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,032 INFO L87 Difference]: Start difference. First operand 183 states and 250 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:21,037 INFO L93 Difference]: Finished difference Result 182 states and 249 transitions. [2021-10-29 04:49:21,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:49:21,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-29 04:49:21,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:21,039 INFO L225 Difference]: With dead ends: 182 [2021-10-29 04:49:21,039 INFO L226 Difference]: Without dead ends: 180 [2021-10-29 04:49:21,039 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 [2021-10-29 04:49:21,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-29 04:49:21,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-10-29 04:49:21,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 161 states have (on average 1.4906832298136645) internal successors, (240), 179 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 240 transitions. [2021-10-29 04:49:21,056 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 240 transitions. Word has length 9 [2021-10-29 04:49:21,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:21,057 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 240 transitions. [2021-10-29 04:49:21,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,057 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 240 transitions. [2021-10-29 04:49:21,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:49:21,058 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:21,058 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:21,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 04:49:21,059 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:21,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:21,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2128885889, now seen corresponding path program 1 times [2021-10-29 04:49:21,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:21,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418306288] [2021-10-29 04:49:21,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:21,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:21,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:21,122 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:21,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418306288] [2021-10-29 04:49:21,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418306288] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:21,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:21,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:49:21,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134420196] [2021-10-29 04:49:21,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:49:21,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:21,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:49:21,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,125 INFO L87 Difference]: Start difference. First operand 180 states and 240 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:21,156 INFO L93 Difference]: Finished difference Result 182 states and 235 transitions. [2021-10-29 04:49:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:49:21,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 04:49:21,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:21,158 INFO L225 Difference]: With dead ends: 182 [2021-10-29 04:49:21,159 INFO L226 Difference]: Without dead ends: 182 [2021-10-29 04:49:21,160 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-29 04:49:21,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 150. [2021-10-29 04:49:21,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 139 states have (on average 1.410071942446043) internal successors, (196), 149 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 196 transitions. [2021-10-29 04:49:21,168 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 196 transitions. Word has length 10 [2021-10-29 04:49:21,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:21,170 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 196 transitions. [2021-10-29 04:49:21,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,170 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 196 transitions. [2021-10-29 04:49:21,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 04:49:21,172 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:21,172 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:21,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 04:49:21,172 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:21,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:21,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1374061918, now seen corresponding path program 1 times [2021-10-29 04:49:21,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:21,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089847325] [2021-10-29 04:49:21,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:21,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:21,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:21,211 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:21,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089847325] [2021-10-29 04:49:21,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089847325] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:21,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:21,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:49:21,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065230064] [2021-10-29 04:49:21,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:49:21,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:21,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:49:21,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,214 INFO L87 Difference]: Start difference. First operand 150 states and 196 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:21,293 INFO L93 Difference]: Finished difference Result 136 states and 182 transitions. [2021-10-29 04:49:21,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:49:21,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-29 04:49:21,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:21,297 INFO L225 Difference]: With dead ends: 136 [2021-10-29 04:49:21,298 INFO L226 Difference]: Without dead ends: 136 [2021-10-29 04:49:21,298 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-10-29 04:49:21,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2021-10-29 04:49:21,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.378787878787879) internal successors, (182), 135 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 182 transitions. [2021-10-29 04:49:21,302 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 182 transitions. Word has length 15 [2021-10-29 04:49:21,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:21,304 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 182 transitions. [2021-10-29 04:49:21,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,304 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 182 transitions. [2021-10-29 04:49:21,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:49:21,310 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:21,310 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:21,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 04:49:21,311 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:21,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:21,311 INFO L85 PathProgramCache]: Analyzing trace with hash -2013683178, now seen corresponding path program 1 times [2021-10-29 04:49:21,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:21,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233143073] [2021-10-29 04:49:21,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:21,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:21,396 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:21,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233143073] [2021-10-29 04:49:21,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233143073] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:21,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:21,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:49:21,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678154867] [2021-10-29 04:49:21,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:49:21,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:21,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:49:21,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,398 INFO L87 Difference]: Start difference. First operand 136 states and 182 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:21,474 INFO L93 Difference]: Finished difference Result 133 states and 178 transitions. [2021-10-29 04:49:21,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:49:21,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-29 04:49:21,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:21,476 INFO L225 Difference]: With dead ends: 133 [2021-10-29 04:49:21,476 INFO L226 Difference]: Without dead ends: 133 [2021-10-29 04:49:21,477 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-29 04:49:21,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-10-29 04:49:21,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 130 states have (on average 1.3692307692307693) internal successors, (178), 132 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 178 transitions. [2021-10-29 04:49:21,481 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 178 transitions. Word has length 18 [2021-10-29 04:49:21,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:21,481 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 178 transitions. [2021-10-29 04:49:21,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,482 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 178 transitions. [2021-10-29 04:49:21,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:49:21,484 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:21,484 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:21,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 04:49:21,485 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:21,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:21,486 INFO L85 PathProgramCache]: Analyzing trace with hash -257604694, now seen corresponding path program 1 times [2021-10-29 04:49:21,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:21,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138748294] [2021-10-29 04:49:21,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:21,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:21,548 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:21,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138748294] [2021-10-29 04:49:21,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138748294] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:21,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:21,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:49:21,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351078410] [2021-10-29 04:49:21,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:49:21,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:21,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:49:21,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,552 INFO L87 Difference]: Start difference. First operand 133 states and 178 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:21,567 INFO L93 Difference]: Finished difference Result 147 states and 194 transitions. [2021-10-29 04:49:21,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:49:21,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-29 04:49:21,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:21,568 INFO L225 Difference]: With dead ends: 147 [2021-10-29 04:49:21,569 INFO L226 Difference]: Without dead ends: 147 [2021-10-29 04:49:21,569 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-10-29 04:49:21,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 133. [2021-10-29 04:49:21,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 130 states have (on average 1.3615384615384616) internal successors, (177), 132 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 177 transitions. [2021-10-29 04:49:21,595 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 177 transitions. Word has length 18 [2021-10-29 04:49:21,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:21,596 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 177 transitions. [2021-10-29 04:49:21,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,596 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 177 transitions. [2021-10-29 04:49:21,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 04:49:21,597 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:21,597 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:21,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 04:49:21,598 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:21,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:21,598 INFO L85 PathProgramCache]: Analyzing trace with hash -211668587, now seen corresponding path program 1 times [2021-10-29 04:49:21,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:21,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023593278] [2021-10-29 04:49:21,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:21,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:21,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:21,679 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:21,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023593278] [2021-10-29 04:49:21,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023593278] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:21,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:21,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:49:21,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937786640] [2021-10-29 04:49:21,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:49:21,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:21,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:49:21,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,688 INFO L87 Difference]: Start difference. First operand 133 states and 177 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:21,700 INFO L93 Difference]: Finished difference Result 145 states and 191 transitions. [2021-10-29 04:49:21,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:49:21,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-10-29 04:49:21,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:21,702 INFO L225 Difference]: With dead ends: 145 [2021-10-29 04:49:21,702 INFO L226 Difference]: Without dead ends: 145 [2021-10-29 04:49:21,703 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-10-29 04:49:21,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 131. [2021-10-29 04:49:21,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 128 states have (on average 1.359375) internal successors, (174), 130 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 174 transitions. [2021-10-29 04:49:21,707 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 174 transitions. Word has length 19 [2021-10-29 04:49:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:21,707 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 174 transitions. [2021-10-29 04:49:21,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 174 transitions. [2021-10-29 04:49:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 04:49:21,709 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:21,709 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:21,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 04:49:21,710 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:21,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:21,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1694205736, now seen corresponding path program 1 times [2021-10-29 04:49:21,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:21,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649353960] [2021-10-29 04:49:21,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:21,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:21,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:21,784 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:21,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649353960] [2021-10-29 04:49:21,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649353960] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:21,785 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:21,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:49:21,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763641205] [2021-10-29 04:49:21,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:49:21,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:21,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:49:21,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:49:21,791 INFO L87 Difference]: Start difference. First operand 131 states and 174 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:21,894 INFO L93 Difference]: Finished difference Result 131 states and 173 transitions. [2021-10-29 04:49:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:49:21,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-29 04:49:21,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:21,896 INFO L225 Difference]: With dead ends: 131 [2021-10-29 04:49:21,896 INFO L226 Difference]: Without dead ends: 131 [2021-10-29 04:49:21,896 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:49:21,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-29 04:49:21,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-10-29 04:49:21,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 128 states have (on average 1.3515625) internal successors, (173), 130 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 173 transitions. [2021-10-29 04:49:21,900 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 173 transitions. Word has length 20 [2021-10-29 04:49:21,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:21,901 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 173 transitions. [2021-10-29 04:49:21,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,901 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 173 transitions. [2021-10-29 04:49:21,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 04:49:21,902 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:21,902 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:21,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 04:49:21,902 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:21,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:21,903 INFO L85 PathProgramCache]: Analyzing trace with hash -975198164, now seen corresponding path program 1 times [2021-10-29 04:49:21,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:21,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124879087] [2021-10-29 04:49:21,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:21,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:21,947 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:21,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124879087] [2021-10-29 04:49:21,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124879087] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:21,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:21,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:49:21,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166199784] [2021-10-29 04:49:21,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:49:21,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:21,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:49:21,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,950 INFO L87 Difference]: Start difference. First operand 131 states and 173 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:21,959 INFO L93 Difference]: Finished difference Result 126 states and 166 transitions. [2021-10-29 04:49:21,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:49:21,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-10-29 04:49:21,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:21,960 INFO L225 Difference]: With dead ends: 126 [2021-10-29 04:49:21,960 INFO L226 Difference]: Without dead ends: 29 [2021-10-29 04:49:21,960 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:21,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-29 04:49:21,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-29 04:49:21,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2021-10-29 04:49:21,961 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 21 [2021-10-29 04:49:21,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:21,963 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-10-29 04:49:21,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:21,963 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-10-29 04:49:21,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 04:49:21,964 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:21,964 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:21,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-29 04:49:21,965 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:21,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:21,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1573133799, now seen corresponding path program 1 times [2021-10-29 04:49:21,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:21,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555090542] [2021-10-29 04:49:21,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:21,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:22,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:22,096 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:22,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555090542] [2021-10-29 04:49:22,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555090542] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:22,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:22,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 04:49:22,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112581529] [2021-10-29 04:49:22,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:49:22,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:22,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:49:22,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:49:22,100 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:22,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:22,152 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2021-10-29 04:49:22,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:49:22,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2021-10-29 04:49:22,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:22,153 INFO L225 Difference]: With dead ends: 31 [2021-10-29 04:49:22,153 INFO L226 Difference]: Without dead ends: 29 [2021-10-29 04:49:22,154 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:49:22,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-29 04:49:22,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-29 04:49:22,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:22,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-29 04:49:22,155 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 21 [2021-10-29 04:49:22,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:22,155 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-29 04:49:22,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:22,156 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-29 04:49:22,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 04:49:22,156 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:22,156 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:22,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-29 04:49:22,157 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:22,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:22,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1587794889, now seen corresponding path program 1 times [2021-10-29 04:49:22,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:22,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326952304] [2021-10-29 04:49:22,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:22,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:22,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:22,191 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:22,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326952304] [2021-10-29 04:49:22,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326952304] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:22,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:22,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:49:22,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084287343] [2021-10-29 04:49:22,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:49:22,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:22,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:49:22,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:22,193 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:22,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:22,206 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2021-10-29 04:49:22,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:49:22,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-29 04:49:22,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:22,208 INFO L225 Difference]: With dead ends: 31 [2021-10-29 04:49:22,208 INFO L226 Difference]: Without dead ends: 31 [2021-10-29 04:49:22,208 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:22,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-29 04:49:22,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-29 04:49:22,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:22,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-10-29 04:49:22,210 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 22 [2021-10-29 04:49:22,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:22,211 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-10-29 04:49:22,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:22,211 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-10-29 04:49:22,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 04:49:22,212 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:22,212 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:22,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-29 04:49:22,212 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:22,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:22,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1984660020, now seen corresponding path program 1 times [2021-10-29 04:49:22,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:22,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221987927] [2021-10-29 04:49:22,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:22,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:22,246 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:22,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221987927] [2021-10-29 04:49:22,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221987927] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:22,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:22,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:49:22,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858488447] [2021-10-29 04:49:22,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:49:22,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:22,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:49:22,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:22,257 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:22,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:22,262 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2021-10-29 04:49:22,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:49:22,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-29 04:49:22,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:22,263 INFO L225 Difference]: With dead ends: 27 [2021-10-29 04:49:22,263 INFO L226 Difference]: Without dead ends: 26 [2021-10-29 04:49:22,263 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:49:22,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-29 04:49:22,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-29 04:49:22,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.0) internal successors, (25), 25 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:22,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2021-10-29 04:49:22,267 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 23 [2021-10-29 04:49:22,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:22,267 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2021-10-29 04:49:22,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:22,267 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2021-10-29 04:49:22,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 04:49:22,270 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:22,270 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:22,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-29 04:49:22,271 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 27 more)] === [2021-10-29 04:49:22,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:22,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1490518160, now seen corresponding path program 1 times [2021-10-29 04:49:22,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:49:22,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598042439] [2021-10-29 04:49:22,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:22,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:49:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:22,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:49:22,332 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:49:22,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598042439] [2021-10-29 04:49:22,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598042439] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:22,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:22,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 04:49:22,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988607616] [2021-10-29 04:49:22,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:49:22,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:49:22,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:49:22,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:49:22,335 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:22,346 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2021-10-29 04:49:22,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:49:22,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2021-10-29 04:49:22,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:22,349 INFO L225 Difference]: With dead ends: 24 [2021-10-29 04:49:22,349 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:49:22,350 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:49:22,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:49:22,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:49:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:22,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:49:22,351 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-10-29 04:49:22,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:22,351 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:49:22,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:22,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:49:22,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:49:22,355 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,356 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,356 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,357 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,357 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,357 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,357 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,358 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,358 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,359 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,359 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,359 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,359 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,360 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,360 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,360 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,360 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,361 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,361 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,361 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,361 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,361 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,362 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,362 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,362 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,362 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,364 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,364 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,365 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,365 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 04:49:22,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-29 04:49:22,368 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:22,370 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:49:22,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:49:22 BoogieIcfgContainer [2021-10-29 04:49:22,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:49:22,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:49:22,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:49:22,376 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:49:22,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:49:20" (3/4) ... [2021-10-29 04:49:22,379 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:49:22,416 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 166 nodes and edges [2021-10-29 04:49:22,419 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 45 nodes and edges [2021-10-29 04:49:22,422 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-29 04:49:22,425 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:49:22,622 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:49:22,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:49:22,624 INFO L168 Benchmark]: Toolchain (without parser) took 5324.64 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 84.7 MB in the beginning and 73.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:22,624 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory is still 40.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:49:22,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.57 ms. Allocated memory is still 117.4 MB. Free memory was 84.5 MB in the beginning and 86.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:22,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.54 ms. Allocated memory is still 117.4 MB. Free memory was 86.5 MB in the beginning and 80.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:22,627 INFO L168 Benchmark]: Boogie Preprocessor took 113.43 ms. Allocated memory is still 117.4 MB. Free memory was 80.6 MB in the beginning and 76.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:22,628 INFO L168 Benchmark]: RCFGBuilder took 2157.57 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 76.5 MB in the beginning and 92.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:22,628 INFO L168 Benchmark]: TraceAbstraction took 2200.26 ms. Allocated memory is still 142.6 MB. Free memory was 92.1 MB in the beginning and 97.7 MB in the end (delta: -5.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:49:22,628 INFO L168 Benchmark]: Witness Printer took 246.82 ms. Allocated memory is still 142.6 MB. Free memory was 97.7 MB in the beginning and 73.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:22,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory is still 40.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 487.57 ms. Allocated memory is still 117.4 MB. Free memory was 84.5 MB in the beginning and 86.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.54 ms. Allocated memory is still 117.4 MB. Free memory was 86.5 MB in the beginning and 80.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 113.43 ms. Allocated memory is still 117.4 MB. Free memory was 80.6 MB in the beginning and 76.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2157.57 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 76.5 MB in the beginning and 92.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2200.26 ms. Allocated memory is still 142.6 MB. Free memory was 92.1 MB in the beginning and 97.7 MB in the end (delta: -5.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 246.82 ms. Allocated memory is still 142.6 MB. Free memory was 97.7 MB in the beginning and 73.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 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: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1013]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 295]: 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, 199 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1992 SDtfs, 1205 SDslu, 764 SDs, 0 SdLazy, 452 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=0, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 65 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 30 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-29 04:49:22,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdfd3c68-7986-4ec3-8b98-6de7714b9916/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...