./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_14-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_14-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e59705ae4b9d6434bb0d27311e7a023ef1b3945 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:22:27,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:22:27,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:22:27,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:22:27,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:22:27,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:22:27,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:22:27,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:22:27,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:22:27,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:22:27,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:22:27,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:22:27,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:22:27,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:22:27,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:22:27,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:22:27,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:22:27,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:22:27,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:22:27,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:22:27,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:22:27,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:22:27,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:22:27,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:22:27,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:22:27,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:22:27,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:22:27,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:22:27,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:22:27,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:22:27,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:22:27,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:22:27,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:22:27,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:22:27,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:22:27,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:22:27,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:22:27,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:22:27,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:22:27,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:22:27,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:22:27,952 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:22:27,988 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:22:27,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:22:27,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:22:27,994 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:22:27,994 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:22:27,994 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:22:27,995 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:22:27,995 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:22:28,002 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:22:28,002 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:22:28,003 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:22:28,003 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:22:28,004 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:22:28,004 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:22:28,004 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:22:28,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:22:28,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:22:28,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:22:28,006 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:22:28,006 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:22:28,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:22:28,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:22:28,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:22:28,007 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:22:28,007 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:22:28,007 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:22:28,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:22:28,010 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:22:28,010 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:22:28,011 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:22:28,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:22:28,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:22:28,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:28,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:22:28,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:22:28,012 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:22:28,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:22:28,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:22:28,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:22:28,013 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_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e59705ae4b9d6434bb0d27311e7a023ef1b3945 [2021-10-11 02:22:28,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:22:28,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:22:28,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:22:28,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:22:28,337 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:22:28,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/locks/test_locks_14-1.c [2021-10-11 02:22:28,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/data/2377ee9be/45db98a96baf409f856d0f8c2307384a/FLAGf8c551d77 [2021-10-11 02:22:28,874 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:22:28,878 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/sv-benchmarks/c/locks/test_locks_14-1.c [2021-10-11 02:22:28,897 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/data/2377ee9be/45db98a96baf409f856d0f8c2307384a/FLAGf8c551d77 [2021-10-11 02:22:29,255 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/data/2377ee9be/45db98a96baf409f856d0f8c2307384a [2021-10-11 02:22:29,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:22:29,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:22:29,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:29,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:22:29,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:22:29,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb170d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29, skipping insertion in model container [2021-10-11 02:22:29,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:22:29,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:22:29,497 WARN L226 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_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/sv-benchmarks/c/locks/test_locks_14-1.c[5283,5296] [2021-10-11 02:22:29,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:29,509 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:22:29,534 WARN L226 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_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/sv-benchmarks/c/locks/test_locks_14-1.c[5283,5296] [2021-10-11 02:22:29,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:29,549 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:22:29,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29 WrapperNode [2021-10-11 02:22:29,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:29,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:29,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:22:29,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:22:29,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:29,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:22:29,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:22:29,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:22:29,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29" (1/1) ... [2021-10-11 02:22:29,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:22:29,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:22:29,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:22:29,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:22:29,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:22:29,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:22:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:22:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:22:30,548 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:22:30,549 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 02:22:30,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:30 BoogieIcfgContainer [2021-10-11 02:22:30,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:22:30,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:22:30,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:22:30,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:22:30,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:22:29" (1/3) ... [2021-10-11 02:22:30,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c0f20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:30, skipping insertion in model container [2021-10-11 02:22:30,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:29" (2/3) ... [2021-10-11 02:22:30,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c0f20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:30, skipping insertion in model container [2021-10-11 02:22:30,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:30" (3/3) ... [2021-10-11 02:22:30,564 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-1.c [2021-10-11 02:22:30,581 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:22:30,585 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:22:30,596 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:22:30,626 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:22:30,626 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:22:30,626 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:22:30,627 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:22:30,627 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:22:30,627 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:22:30,628 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:22:30,628 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:22:30,646 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-10-11 02:22:30,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:22:30,652 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:30,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:22:30,653 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:30,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:30,658 INFO L82 PathProgramCache]: Analyzing trace with hash 9118541, now seen corresponding path program 1 times [2021-10-11 02:22:30,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:30,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363406903] [2021-10-11 02:22:30,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:30,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:30,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363406903] [2021-10-11 02:22:30,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:30,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:30,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724993506] [2021-10-11 02:22:30,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:22:30,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:30,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:22:30,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:22:30,844 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2021-10-11 02:22:30,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:30,858 INFO L93 Difference]: Finished difference Result 37 states and 64 transitions. [2021-10-11 02:22:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:22:30,859 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2021-10-11 02:22:30,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:30,869 INFO L225 Difference]: With dead ends: 37 [2021-10-11 02:22:30,869 INFO L226 Difference]: Without dead ends: 36 [2021-10-11 02:22:30,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:22:30,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-11 02:22:30,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-11 02:22:30,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-10-11 02:22:30,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2021-10-11 02:22:30,908 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 4 [2021-10-11 02:22:30,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:30,908 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2021-10-11 02:22:30,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:22:30,909 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2021-10-11 02:22:30,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:22:30,909 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:30,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:22:30,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:22:30,910 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:30,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:30,911 INFO L82 PathProgramCache]: Analyzing trace with hash 274635153, now seen corresponding path program 1 times [2021-10-11 02:22:30,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:30,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799806525] [2021-10-11 02:22:30,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:30,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799806525] [2021-10-11 02:22:30,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:30,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:22:30,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322534513] [2021-10-11 02:22:30,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:22:30,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:30,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:22:30,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:30,982 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 3 states. [2021-10-11 02:22:30,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:30,996 INFO L93 Difference]: Finished difference Result 35 states and 62 transitions. [2021-10-11 02:22:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:30,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:22:30,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:30,999 INFO L225 Difference]: With dead ends: 35 [2021-10-11 02:22:30,999 INFO L226 Difference]: Without dead ends: 33 [2021-10-11 02:22:31,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:22:31,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-11 02:22:31,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-11 02:22:31,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:31,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 60 transitions. [2021-10-11 02:22:31,011 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 60 transitions. Word has length 5 [2021-10-11 02:22:31,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:31,011 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 60 transitions. [2021-10-11 02:22:31,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:22:31,012 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 60 transitions. [2021-10-11 02:22:31,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:22:31,012 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:31,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:22:31,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:22:31,013 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:31,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:31,013 INFO L82 PathProgramCache]: Analyzing trace with hash -67997349, now seen corresponding path program 1 times [2021-10-11 02:22:31,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:31,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49517689] [2021-10-11 02:22:31,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:31,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49517689] [2021-10-11 02:22:31,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:31,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:31,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091094295] [2021-10-11 02:22:31,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:31,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:31,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:31,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:31,130 INFO L87 Difference]: Start difference. First operand 33 states and 60 transitions. Second operand 4 states. [2021-10-11 02:22:31,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:31,178 INFO L93 Difference]: Finished difference Result 63 states and 114 transitions. [2021-10-11 02:22:31,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:31,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-10-11 02:22:31,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:31,184 INFO L225 Difference]: With dead ends: 63 [2021-10-11 02:22:31,184 INFO L226 Difference]: Without dead ends: 63 [2021-10-11 02:22:31,184 INFO L677 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 [2021-10-11 02:22:31,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-11 02:22:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 33. [2021-10-11 02:22:31,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:31,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 59 transitions. [2021-10-11 02:22:31,199 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 59 transitions. Word has length 6 [2021-10-11 02:22:31,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:31,199 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 59 transitions. [2021-10-11 02:22:31,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:31,199 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 59 transitions. [2021-10-11 02:22:31,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:22:31,200 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:31,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:31,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:22:31,201 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:31,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:31,201 INFO L82 PathProgramCache]: Analyzing trace with hash -2107705767, now seen corresponding path program 1 times [2021-10-11 02:22:31,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:31,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79502211] [2021-10-11 02:22:31,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:31,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:31,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79502211] [2021-10-11 02:22:31,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:31,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:31,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516664365] [2021-10-11 02:22:31,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:31,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:31,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:31,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:31,274 INFO L87 Difference]: Start difference. First operand 33 states and 59 transitions. Second operand 4 states. [2021-10-11 02:22:31,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:31,302 INFO L93 Difference]: Finished difference Result 61 states and 109 transitions. [2021-10-11 02:22:31,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:31,303 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:22:31,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:31,304 INFO L225 Difference]: With dead ends: 61 [2021-10-11 02:22:31,304 INFO L226 Difference]: Without dead ends: 61 [2021-10-11 02:22:31,304 INFO L677 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 [2021-10-11 02:22:31,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-11 02:22:31,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 33. [2021-10-11 02:22:31,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:31,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 58 transitions. [2021-10-11 02:22:31,309 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 58 transitions. Word has length 7 [2021-10-11 02:22:31,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:31,309 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 58 transitions. [2021-10-11 02:22:31,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:31,309 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 58 transitions. [2021-10-11 02:22:31,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:22:31,310 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:31,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:31,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:22:31,310 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:31,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:31,311 INFO L82 PathProgramCache]: Analyzing trace with hash -914156944, now seen corresponding path program 1 times [2021-10-11 02:22:31,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:31,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510097875] [2021-10-11 02:22:31,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:31,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510097875] [2021-10-11 02:22:31,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:31,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:31,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239556704] [2021-10-11 02:22:31,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:31,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:31,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:31,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:31,390 INFO L87 Difference]: Start difference. First operand 33 states and 58 transitions. Second operand 4 states. [2021-10-11 02:22:31,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:31,431 INFO L93 Difference]: Finished difference Result 59 states and 104 transitions. [2021-10-11 02:22:31,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:31,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-10-11 02:22:31,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:31,433 INFO L225 Difference]: With dead ends: 59 [2021-10-11 02:22:31,433 INFO L226 Difference]: Without dead ends: 59 [2021-10-11 02:22:31,434 INFO L677 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 [2021-10-11 02:22:31,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-11 02:22:31,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 33. [2021-10-11 02:22:31,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:31,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 57 transitions. [2021-10-11 02:22:31,438 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 57 transitions. Word has length 8 [2021-10-11 02:22:31,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:31,438 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 57 transitions. [2021-10-11 02:22:31,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:31,438 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 57 transitions. [2021-10-11 02:22:31,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:22:31,439 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:31,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:31,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:22:31,439 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:31,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:31,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1726118542, now seen corresponding path program 1 times [2021-10-11 02:22:31,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:31,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441681109] [2021-10-11 02:22:31,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:31,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:31,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441681109] [2021-10-11 02:22:31,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:31,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:31,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398902829] [2021-10-11 02:22:31,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:31,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:31,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:31,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:31,539 INFO L87 Difference]: Start difference. First operand 33 states and 57 transitions. Second operand 4 states. [2021-10-11 02:22:31,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:31,574 INFO L93 Difference]: Finished difference Result 57 states and 99 transitions. [2021-10-11 02:22:31,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:31,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-10-11 02:22:31,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:31,576 INFO L225 Difference]: With dead ends: 57 [2021-10-11 02:22:31,576 INFO L226 Difference]: Without dead ends: 57 [2021-10-11 02:22:31,576 INFO L677 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 [2021-10-11 02:22:31,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-11 02:22:31,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 33. [2021-10-11 02:22:31,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:31,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 56 transitions. [2021-10-11 02:22:31,581 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 56 transitions. Word has length 9 [2021-10-11 02:22:31,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:31,581 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 56 transitions. [2021-10-11 02:22:31,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:31,582 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 56 transitions. [2021-10-11 02:22:31,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:22:31,582 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:31,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:31,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:22:31,583 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:31,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:31,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1970280325, now seen corresponding path program 1 times [2021-10-11 02:22:31,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:31,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146216821] [2021-10-11 02:22:31,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:31,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146216821] [2021-10-11 02:22:31,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:31,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:31,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742939394] [2021-10-11 02:22:31,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:31,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:31,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:31,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:31,627 INFO L87 Difference]: Start difference. First operand 33 states and 56 transitions. Second operand 4 states. [2021-10-11 02:22:31,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:31,656 INFO L93 Difference]: Finished difference Result 55 states and 94 transitions. [2021-10-11 02:22:31,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:31,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-10-11 02:22:31,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:31,658 INFO L225 Difference]: With dead ends: 55 [2021-10-11 02:22:31,659 INFO L226 Difference]: Without dead ends: 55 [2021-10-11 02:22:31,659 INFO L677 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 [2021-10-11 02:22:31,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-11 02:22:31,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 33. [2021-10-11 02:22:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:31,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 55 transitions. [2021-10-11 02:22:31,668 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 55 transitions. Word has length 10 [2021-10-11 02:22:31,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:31,669 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 55 transitions. [2021-10-11 02:22:31,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:31,669 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2021-10-11 02:22:31,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:22:31,670 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:31,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:31,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:22:31,671 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:31,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:31,672 INFO L82 PathProgramCache]: Analyzing trace with hash 949361347, now seen corresponding path program 1 times [2021-10-11 02:22:31,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:31,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507280058] [2021-10-11 02:22:31,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:31,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507280058] [2021-10-11 02:22:31,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:31,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:31,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612472339] [2021-10-11 02:22:31,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:31,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:31,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:31,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:31,723 INFO L87 Difference]: Start difference. First operand 33 states and 55 transitions. Second operand 4 states. [2021-10-11 02:22:31,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:31,744 INFO L93 Difference]: Finished difference Result 53 states and 89 transitions. [2021-10-11 02:22:31,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:31,746 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:22:31,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:31,748 INFO L225 Difference]: With dead ends: 53 [2021-10-11 02:22:31,748 INFO L226 Difference]: Without dead ends: 53 [2021-10-11 02:22:31,749 INFO L677 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 [2021-10-11 02:22:31,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-11 02:22:31,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 33. [2021-10-11 02:22:31,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:31,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 54 transitions. [2021-10-11 02:22:31,756 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 54 transitions. Word has length 11 [2021-10-11 02:22:31,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:31,756 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 54 transitions. [2021-10-11 02:22:31,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 54 transitions. [2021-10-11 02:22:31,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:22:31,757 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:31,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:31,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:22:31,758 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:31,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:31,758 INFO L82 PathProgramCache]: Analyzing trace with hash -634355558, now seen corresponding path program 1 times [2021-10-11 02:22:31,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:31,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194810176] [2021-10-11 02:22:31,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:31,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:31,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194810176] [2021-10-11 02:22:31,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:31,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:31,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708927516] [2021-10-11 02:22:31,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:31,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:31,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:31,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:31,798 INFO L87 Difference]: Start difference. First operand 33 states and 54 transitions. Second operand 4 states. [2021-10-11 02:22:31,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:31,814 INFO L93 Difference]: Finished difference Result 51 states and 84 transitions. [2021-10-11 02:22:31,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:31,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2021-10-11 02:22:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:31,816 INFO L225 Difference]: With dead ends: 51 [2021-10-11 02:22:31,816 INFO L226 Difference]: Without dead ends: 51 [2021-10-11 02:22:31,816 INFO L677 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 [2021-10-11 02:22:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-11 02:22:31,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 33. [2021-10-11 02:22:31,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:31,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 53 transitions. [2021-10-11 02:22:31,819 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 53 transitions. Word has length 12 [2021-10-11 02:22:31,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:31,820 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 53 transitions. [2021-10-11 02:22:31,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 53 transitions. [2021-10-11 02:22:31,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:22:31,821 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:31,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:31,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:22:31,821 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:31,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:31,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1810028280, now seen corresponding path program 1 times [2021-10-11 02:22:31,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:31,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755111998] [2021-10-11 02:22:31,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:31,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:31,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755111998] [2021-10-11 02:22:31,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:31,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:31,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111845737] [2021-10-11 02:22:31,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:31,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:31,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:31,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:31,859 INFO L87 Difference]: Start difference. First operand 33 states and 53 transitions. Second operand 4 states. [2021-10-11 02:22:31,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:31,875 INFO L93 Difference]: Finished difference Result 49 states and 79 transitions. [2021-10-11 02:22:31,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:31,875 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-10-11 02:22:31,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:31,876 INFO L225 Difference]: With dead ends: 49 [2021-10-11 02:22:31,876 INFO L226 Difference]: Without dead ends: 49 [2021-10-11 02:22:31,877 INFO L677 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 [2021-10-11 02:22:31,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-11 02:22:31,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 33. [2021-10-11 02:22:31,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:31,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 52 transitions. [2021-10-11 02:22:31,880 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 52 transitions. Word has length 13 [2021-10-11 02:22:31,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:31,880 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 52 transitions. [2021-10-11 02:22:31,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2021-10-11 02:22:31,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:22:31,881 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:31,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:31,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:22:31,882 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:31,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:31,883 INFO L82 PathProgramCache]: Analyzing trace with hash 276516271, now seen corresponding path program 1 times [2021-10-11 02:22:31,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:31,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358859625] [2021-10-11 02:22:31,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:31,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:31,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358859625] [2021-10-11 02:22:31,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:31,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:31,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439707090] [2021-10-11 02:22:31,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:31,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:31,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:31,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:31,930 INFO L87 Difference]: Start difference. First operand 33 states and 52 transitions. Second operand 4 states. [2021-10-11 02:22:31,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:31,951 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2021-10-11 02:22:31,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:31,952 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-10-11 02:22:31,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:31,953 INFO L225 Difference]: With dead ends: 47 [2021-10-11 02:22:31,953 INFO L226 Difference]: Without dead ends: 47 [2021-10-11 02:22:31,954 INFO L677 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 [2021-10-11 02:22:31,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-11 02:22:31,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 33. [2021-10-11 02:22:31,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:31,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2021-10-11 02:22:31,959 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 14 [2021-10-11 02:22:31,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:31,959 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2021-10-11 02:22:31,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:31,959 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2021-10-11 02:22:31,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:22:31,960 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:31,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:31,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:22:31,961 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:31,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:31,961 INFO L82 PathProgramCache]: Analyzing trace with hash -17715411, now seen corresponding path program 1 times [2021-10-11 02:22:31,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:31,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760814861] [2021-10-11 02:22:31,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:32,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:32,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760814861] [2021-10-11 02:22:32,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:32,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:32,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464320710] [2021-10-11 02:22:32,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:32,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:32,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:32,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:32,042 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2021-10-11 02:22:32,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:32,061 INFO L93 Difference]: Finished difference Result 45 states and 69 transitions. [2021-10-11 02:22:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:32,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2021-10-11 02:22:32,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:32,063 INFO L225 Difference]: With dead ends: 45 [2021-10-11 02:22:32,063 INFO L226 Difference]: Without dead ends: 45 [2021-10-11 02:22:32,064 INFO L677 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 [2021-10-11 02:22:32,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-11 02:22:32,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 33. [2021-10-11 02:22:32,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:32,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 50 transitions. [2021-10-11 02:22:32,076 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 50 transitions. Word has length 15 [2021-10-11 02:22:32,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:32,077 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 50 transitions. [2021-10-11 02:22:32,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:32,077 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2021-10-11 02:22:32,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:22:32,079 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:32,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:32,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 02:22:32,079 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:32,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:32,080 INFO L82 PathProgramCache]: Analyzing trace with hash -548962620, now seen corresponding path program 1 times [2021-10-11 02:22:32,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:32,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028663808] [2021-10-11 02:22:32,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:32,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:32,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028663808] [2021-10-11 02:22:32,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:32,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:32,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327296539] [2021-10-11 02:22:32,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:32,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:32,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:32,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:32,147 INFO L87 Difference]: Start difference. First operand 33 states and 50 transitions. Second operand 4 states. [2021-10-11 02:22:32,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:32,163 INFO L93 Difference]: Finished difference Result 43 states and 64 transitions. [2021-10-11 02:22:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:32,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2021-10-11 02:22:32,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:32,170 INFO L225 Difference]: With dead ends: 43 [2021-10-11 02:22:32,171 INFO L226 Difference]: Without dead ends: 43 [2021-10-11 02:22:32,172 INFO L677 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 [2021-10-11 02:22:32,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-11 02:22:32,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 33. [2021-10-11 02:22:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:32,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 49 transitions. [2021-10-11 02:22:32,178 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 49 transitions. Word has length 16 [2021-10-11 02:22:32,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:32,178 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 49 transitions. [2021-10-11 02:22:32,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:32,178 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2021-10-11 02:22:32,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:22:32,183 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:32,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:32,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 02:22:32,185 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:32,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:32,187 INFO L82 PathProgramCache]: Analyzing trace with hash 162243426, now seen corresponding path program 1 times [2021-10-11 02:22:32,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:32,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785402184] [2021-10-11 02:22:32,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:32,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:32,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785402184] [2021-10-11 02:22:32,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:32,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:32,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510131075] [2021-10-11 02:22:32,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:32,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:32,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:32,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:32,247 INFO L87 Difference]: Start difference. First operand 33 states and 49 transitions. Second operand 4 states. [2021-10-11 02:22:32,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:32,267 INFO L93 Difference]: Finished difference Result 41 states and 59 transitions. [2021-10-11 02:22:32,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:32,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2021-10-11 02:22:32,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:32,270 INFO L225 Difference]: With dead ends: 41 [2021-10-11 02:22:32,271 INFO L226 Difference]: Without dead ends: 41 [2021-10-11 02:22:32,272 INFO L677 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 [2021-10-11 02:22:32,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-11 02:22:32,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2021-10-11 02:22:32,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:32,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 48 transitions. [2021-10-11 02:22:32,274 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 48 transitions. Word has length 17 [2021-10-11 02:22:32,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:32,275 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 48 transitions. [2021-10-11 02:22:32,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:32,275 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2021-10-11 02:22:32,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:22:32,276 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:32,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:32,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-11 02:22:32,276 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:32,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:32,277 INFO L82 PathProgramCache]: Analyzing trace with hash 734794713, now seen corresponding path program 1 times [2021-10-11 02:22:32,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:32,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073797793] [2021-10-11 02:22:32,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:32,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:32,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073797793] [2021-10-11 02:22:32,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:32,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:32,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930134926] [2021-10-11 02:22:32,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:32,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:32,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:32,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:32,326 INFO L87 Difference]: Start difference. First operand 33 states and 48 transitions. Second operand 4 states. [2021-10-11 02:22:32,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:32,343 INFO L93 Difference]: Finished difference Result 39 states and 54 transitions. [2021-10-11 02:22:32,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:32,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2021-10-11 02:22:32,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:32,344 INFO L225 Difference]: With dead ends: 39 [2021-10-11 02:22:32,344 INFO L226 Difference]: Without dead ends: 39 [2021-10-11 02:22:32,346 INFO L677 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 [2021-10-11 02:22:32,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-11 02:22:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2021-10-11 02:22:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-11 02:22:32,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 47 transitions. [2021-10-11 02:22:32,348 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 47 transitions. Word has length 18 [2021-10-11 02:22:32,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:32,349 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 47 transitions. [2021-10-11 02:22:32,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:32,349 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 47 transitions. [2021-10-11 02:22:32,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:22:32,349 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:32,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:32,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-11 02:22:32,350 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:22:32,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:32,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1304015767, now seen corresponding path program 1 times [2021-10-11 02:22:32,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:32,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829643116] [2021-10-11 02:22:32,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:32,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:32,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829643116] [2021-10-11 02:22:32,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:32,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:32,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982910937] [2021-10-11 02:22:32,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:32,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:32,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:32,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:32,401 INFO L87 Difference]: Start difference. First operand 33 states and 47 transitions. Second operand 4 states. [2021-10-11 02:22:32,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:32,415 INFO L93 Difference]: Finished difference Result 33 states and 47 transitions. [2021-10-11 02:22:32,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:32,416 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2021-10-11 02:22:32,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:32,416 INFO L225 Difference]: With dead ends: 33 [2021-10-11 02:22:32,416 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:22:32,417 INFO L677 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 [2021-10-11 02:22:32,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:22:32,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:22:32,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:22:32,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:22:32,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-10-11 02:22:32,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:32,418 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:22:32,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:32,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:22:32,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:22:32,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-11 02:22:32,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:22:32 BoogieIcfgContainer [2021-10-11 02:22:32,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:22:32,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:22:32,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:22:32,425 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:22:32,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:30" (3/4) ... [2021-10-11 02:22:32,429 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:22:32,448 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-11 02:22:32,448 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:22:32,449 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 02:22:32,450 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:22:32,517 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b63d6cb-3dcd-44d3-9d72-9d63e21b1cee/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:22:32,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:22:32,519 INFO L168 Benchmark]: Toolchain (without parser) took 3258.42 ms. Allocated memory was 88.1 MB in the beginning and 134.2 MB in the end (delta: 46.1 MB). Free memory was 64.8 MB in the beginning and 60.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:32,519 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:32,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.21 ms. Allocated memory is still 88.1 MB. Free memory was 64.8 MB in the beginning and 63.9 MB in the end (delta: 966.3 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:32,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.62 ms. Allocated memory is still 88.1 MB. Free memory was 63.7 MB in the beginning and 61.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:32,521 INFO L168 Benchmark]: Boogie Preprocessor took 26.94 ms. Allocated memory is still 88.1 MB. Free memory was 61.9 MB in the beginning and 60.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:32,521 INFO L168 Benchmark]: RCFGBuilder took 930.19 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 60.4 MB in the beginning and 53.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:32,522 INFO L168 Benchmark]: TraceAbstraction took 1871.85 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 52.5 MB in the beginning and 64.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:32,522 INFO L168 Benchmark]: Witness Printer took 92.42 ms. Allocated memory is still 134.2 MB. Free memory was 64.7 MB in the beginning and 60.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:32,524 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 289.21 ms. Allocated memory is still 88.1 MB. Free memory was 64.8 MB in the beginning and 63.9 MB in the end (delta: 966.3 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.62 ms. Allocated memory is still 88.1 MB. Free memory was 63.7 MB in the beginning and 61.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.94 ms. Allocated memory is still 88.1 MB. Free memory was 61.9 MB in the beginning and 60.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 930.19 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 60.4 MB in the beginning and 53.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1871.85 ms. Allocated memory was 107.0 MB in the beginning and 134.2 MB in the end (delta: 27.3 MB). Free memory was 52.5 MB in the beginning and 64.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Witness Printer took 92.42 ms. Allocated memory is still 134.2 MB. Free memory was 64.7 MB in the beginning and 60.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 219]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 832 SDtfs, 659 SDslu, 1055 SDs, 0 SdLazy, 126 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 234 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 11068 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...