./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_9.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_2d2577d8-4f05-4552-940e-e44f3af0d29e/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2577d8-4f05-4552-940e-e44f3af0d29e/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_2d2577d8-4f05-4552-940e-e44f3af0d29e/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2577d8-4f05-4552-940e-e44f3af0d29e/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_9.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2577d8-4f05-4552-940e-e44f3af0d29e/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_2d2577d8-4f05-4552-940e-e44f3af0d29e/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 20a70402cc893fb2c7adec21ca8a267adc3c5cbb ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:28:43,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:28:43,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:28:43,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:28:43,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:28:43,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:28:43,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:28:43,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:28:43,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:28:43,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:28:43,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:28:43,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:28:43,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:28:43,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:28:43,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:28:43,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:28:43,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:28:43,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:28:43,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:28:43,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:28:43,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:28:43,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:28:43,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:28:43,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:28:43,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:28:43,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:28:43,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:28:43,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:28:43,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:28:43,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:28:43,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:28:43,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:28:43,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:28:43,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:28:43,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:28:43,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:28:43,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:28:43,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:28:43,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:28:43,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:28:43,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:28:43,864 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2577d8-4f05-4552-940e-e44f3af0d29e/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:28:43,886 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:28:43,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:28:43,888 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:28:43,888 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:28:43,889 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:28:43,889 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:28:43,889 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:28:43,890 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:28:43,890 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:28:43,891 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:28:43,891 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:28:43,891 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:28:43,892 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:28:43,892 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:28:43,893 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:28:43,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:28:43,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:28:43,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:28:43,895 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:28:43,895 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:28:43,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:28:43,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:28:43,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:28:43,896 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:28:43,896 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:28:43,896 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:28:43,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:28:43,897 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:28:43,897 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:28:43,897 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:28:43,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:28:43,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:28:43,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:43,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:28:43,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:28:43,899 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:28:43,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:28:43,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:28:43,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:28:43,900 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_2d2577d8-4f05-4552-940e-e44f3af0d29e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2577d8-4f05-4552-940e-e44f3af0d29e/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20a70402cc893fb2c7adec21ca8a267adc3c5cbb [2021-10-11 02:28:44,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:28:44,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:28:44,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:28:44,167 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:28:44,170 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:28:44,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2577d8-4f05-4552-940e-e44f3af0d29e/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/locks/test_locks_9.c [2021-10-11 02:28:44,289 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2577d8-4f05-4552-940e-e44f3af0d29e/bin/utaipan-WLngWcDbfI/data/6c48757dc/042216e88e914b3eb9fe7ee2fc08d331/FLAG1b37166fe [2021-10-11 02:28:44,709 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:28:44,710 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2577d8-4f05-4552-940e-e44f3af0d29e/sv-benchmarks/c/locks/test_locks_9.c [2021-10-11 02:28:44,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2577d8-4f05-4552-940e-e44f3af0d29e/bin/utaipan-WLngWcDbfI/data/6c48757dc/042216e88e914b3eb9fe7ee2fc08d331/FLAG1b37166fe [2021-10-11 02:28:45,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2577d8-4f05-4552-940e-e44f3af0d29e/bin/utaipan-WLngWcDbfI/data/6c48757dc/042216e88e914b3eb9fe7ee2fc08d331 [2021-10-11 02:28:45,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:28:45,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:28:45,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:45,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:28:45,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:28:45,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f40f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45, skipping insertion in model container [2021-10-11 02:28:45,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:28:45,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:28:45,295 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_2d2577d8-4f05-4552-940e-e44f3af0d29e/sv-benchmarks/c/locks/test_locks_9.c[3555,3568] [2021-10-11 02:28:45,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:45,318 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:28:45,345 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_2d2577d8-4f05-4552-940e-e44f3af0d29e/sv-benchmarks/c/locks/test_locks_9.c[3555,3568] [2021-10-11 02:28:45,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:45,371 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:28:45,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45 WrapperNode [2021-10-11 02:28:45,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:45,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:45,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:28:45,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:28:45,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:45,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:28:45,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:28:45,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:28:45,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... [2021-10-11 02:28:45,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:28:45,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:28:45,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:28:45,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:28:45,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2577d8-4f05-4552-940e-e44f3af0d29e/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 02:28:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:28:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:28:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:28:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:28:46,135 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:28:46,136 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 02:28:46,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:46 BoogieIcfgContainer [2021-10-11 02:28:46,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:28:46,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:28:46,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:28:46,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:28:46,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:28:45" (1/3) ... [2021-10-11 02:28:46,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c6a940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:46, skipping insertion in model container [2021-10-11 02:28:46,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:45" (2/3) ... [2021-10-11 02:28:46,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c6a940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:46, skipping insertion in model container [2021-10-11 02:28:46,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:46" (3/3) ... [2021-10-11 02:28:46,159 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_9.c [2021-10-11 02:28:46,181 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:28:46,184 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:28:46,193 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:28:46,210 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:28:46,210 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:28:46,210 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:28:46,210 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:28:46,211 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:28:46,211 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:28:46,211 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:28:46,211 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:28:46,224 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2021-10-11 02:28:46,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:28:46,231 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:46,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:28:46,232 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:28:46,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:46,238 INFO L82 PathProgramCache]: Analyzing trace with hash 6504784, now seen corresponding path program 1 times [2021-10-11 02:28:46,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:46,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289036282] [2021-10-11 02:28:46,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:46,436 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 02:28:46,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289036282] [2021-10-11 02:28:46,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:46,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:46,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983793359] [2021-10-11 02:28:46,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:28:46,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:46,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:28:46,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:28:46,459 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2021-10-11 02:28:46,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:46,472 INFO L93 Difference]: Finished difference Result 27 states and 44 transitions. [2021-10-11 02:28:46,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:28:46,474 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2021-10-11 02:28:46,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:46,482 INFO L225 Difference]: With dead ends: 27 [2021-10-11 02:28:46,483 INFO L226 Difference]: Without dead ends: 26 [2021-10-11 02:28:46,484 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 02:28:46,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-11 02:28:46,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-11 02:28:46,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-10-11 02:28:46,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 43 transitions. [2021-10-11 02:28:46,517 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 43 transitions. Word has length 4 [2021-10-11 02:28:46,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:46,518 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 43 transitions. [2021-10-11 02:28:46,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:28:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 43 transitions. [2021-10-11 02:28:46,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:28:46,519 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:46,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:28:46,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:28:46,519 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:28:46,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:46,521 INFO L82 PathProgramCache]: Analyzing trace with hash 196133148, now seen corresponding path program 1 times [2021-10-11 02:28:46,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:46,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521750760] [2021-10-11 02:28:46,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:46,585 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 02:28:46,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521750760] [2021-10-11 02:28:46,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:46,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:28:46,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001293877] [2021-10-11 02:28:46,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:28:46,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:46,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:28:46,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:46,594 INFO L87 Difference]: Start difference. First operand 26 states and 43 transitions. Second operand 3 states. [2021-10-11 02:28:46,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:46,604 INFO L93 Difference]: Finished difference Result 25 states and 42 transitions. [2021-10-11 02:28:46,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:28:46,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:28:46,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:46,607 INFO L225 Difference]: With dead ends: 25 [2021-10-11 02:28:46,608 INFO L226 Difference]: Without dead ends: 23 [2021-10-11 02:28:46,609 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 02:28:46,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-11 02:28:46,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-11 02:28:46,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 02:28:46,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 40 transitions. [2021-10-11 02:28:46,619 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 40 transitions. Word has length 5 [2021-10-11 02:28:46,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:46,620 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 40 transitions. [2021-10-11 02:28:46,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:28:46,620 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 40 transitions. [2021-10-11 02:28:46,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:28:46,621 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:46,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:28:46,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:28:46,621 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:28:46,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:46,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1790632122, now seen corresponding path program 1 times [2021-10-11 02:28:46,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:46,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763392291] [2021-10-11 02:28:46,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:46,715 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 02:28:46,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763392291] [2021-10-11 02:28:46,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:46,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:46,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52575581] [2021-10-11 02:28:46,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:46,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:46,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:46,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:46,718 INFO L87 Difference]: Start difference. First operand 23 states and 40 transitions. Second operand 4 states. [2021-10-11 02:28:46,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:46,744 INFO L93 Difference]: Finished difference Result 43 states and 74 transitions. [2021-10-11 02:28:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:46,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-10-11 02:28:46,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:46,746 INFO L225 Difference]: With dead ends: 43 [2021-10-11 02:28:46,746 INFO L226 Difference]: Without dead ends: 43 [2021-10-11 02:28:46,747 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 02:28:46,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-11 02:28:46,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 23. [2021-10-11 02:28:46,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 02:28:46,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 39 transitions. [2021-10-11 02:28:46,752 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 39 transitions. Word has length 6 [2021-10-11 02:28:46,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:46,752 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 39 transitions. [2021-10-11 02:28:46,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:46,752 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 39 transitions. [2021-10-11 02:28:46,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:28:46,753 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:46,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:46,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:28:46,754 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:28:46,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:46,754 INFO L82 PathProgramCache]: Analyzing trace with hash -324765394, now seen corresponding path program 1 times [2021-10-11 02:28:46,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:46,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24148428] [2021-10-11 02:28:46,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:46,803 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 02:28:46,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24148428] [2021-10-11 02:28:46,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:46,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:46,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154420358] [2021-10-11 02:28:46,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:46,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:46,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:46,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:46,809 INFO L87 Difference]: Start difference. First operand 23 states and 39 transitions. Second operand 4 states. [2021-10-11 02:28:46,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:46,842 INFO L93 Difference]: Finished difference Result 41 states and 69 transitions. [2021-10-11 02:28:46,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:46,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:28:46,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:46,844 INFO L225 Difference]: With dead ends: 41 [2021-10-11 02:28:46,845 INFO L226 Difference]: Without dead ends: 41 [2021-10-11 02:28:46,846 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 02:28:46,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-10-11 02:28:46,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 23. [2021-10-11 02:28:46,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 02:28:46,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2021-10-11 02:28:46,854 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 38 transitions. Word has length 7 [2021-10-11 02:28:46,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:46,854 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 38 transitions. [2021-10-11 02:28:46,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:46,855 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2021-10-11 02:28:46,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:28:46,856 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:46,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:46,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:28:46,859 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:28:46,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:46,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1477578609, now seen corresponding path program 1 times [2021-10-11 02:28:46,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:46,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680183067] [2021-10-11 02:28:46,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:46,946 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 02:28:46,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680183067] [2021-10-11 02:28:46,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:46,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:46,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238233105] [2021-10-11 02:28:46,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:46,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:46,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:46,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:46,955 INFO L87 Difference]: Start difference. First operand 23 states and 38 transitions. Second operand 4 states. [2021-10-11 02:28:46,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:46,985 INFO L93 Difference]: Finished difference Result 39 states and 64 transitions. [2021-10-11 02:28:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:46,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-10-11 02:28:46,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:46,987 INFO L225 Difference]: With dead ends: 39 [2021-10-11 02:28:46,988 INFO L226 Difference]: Without dead ends: 39 [2021-10-11 02:28:46,989 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 02:28:46,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-11 02:28:46,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 23. [2021-10-11 02:28:46,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 02:28:46,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 37 transitions. [2021-10-11 02:28:46,997 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 37 transitions. Word has length 8 [2021-10-11 02:28:46,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:46,998 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 37 transitions. [2021-10-11 02:28:46,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:46,998 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 37 transitions. [2021-10-11 02:28:46,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:28:46,999 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:46,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:46,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:28:47,000 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:28:47,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:47,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1439917731, now seen corresponding path program 1 times [2021-10-11 02:28:47,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:47,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705856434] [2021-10-11 02:28:47,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:47,078 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 02:28:47,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705856434] [2021-10-11 02:28:47,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:47,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:47,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790629135] [2021-10-11 02:28:47,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:47,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:47,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:47,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:47,083 INFO L87 Difference]: Start difference. First operand 23 states and 37 transitions. Second operand 4 states. [2021-10-11 02:28:47,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:47,111 INFO L93 Difference]: Finished difference Result 37 states and 59 transitions. [2021-10-11 02:28:47,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:47,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-10-11 02:28:47,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:47,114 INFO L225 Difference]: With dead ends: 37 [2021-10-11 02:28:47,114 INFO L226 Difference]: Without dead ends: 37 [2021-10-11 02:28:47,115 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 02:28:47,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-11 02:28:47,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 23. [2021-10-11 02:28:47,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 02:28:47,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 36 transitions. [2021-10-11 02:28:47,118 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 36 transitions. Word has length 9 [2021-10-11 02:28:47,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:47,118 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 36 transitions. [2021-10-11 02:28:47,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:47,119 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2021-10-11 02:28:47,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:28:47,119 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:47,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:47,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:28:47,120 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:28:47,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:47,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1687991396, now seen corresponding path program 1 times [2021-10-11 02:28:47,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:47,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849963014] [2021-10-11 02:28:47,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:47,154 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 02:28:47,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849963014] [2021-10-11 02:28:47,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:47,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:47,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223235191] [2021-10-11 02:28:47,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:47,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:47,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:47,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:47,156 INFO L87 Difference]: Start difference. First operand 23 states and 36 transitions. Second operand 4 states. [2021-10-11 02:28:47,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:47,172 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2021-10-11 02:28:47,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:47,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-10-11 02:28:47,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:47,173 INFO L225 Difference]: With dead ends: 35 [2021-10-11 02:28:47,173 INFO L226 Difference]: Without dead ends: 35 [2021-10-11 02:28:47,173 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 02:28:47,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-11 02:28:47,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 23. [2021-10-11 02:28:47,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 02:28:47,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2021-10-11 02:28:47,176 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 35 transitions. Word has length 10 [2021-10-11 02:28:47,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:47,177 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 35 transitions. [2021-10-11 02:28:47,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:47,177 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2021-10-11 02:28:47,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:28:47,177 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:47,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:47,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:28:47,178 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:28:47,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:47,178 INFO L82 PathProgramCache]: Analyzing trace with hash 788340760, now seen corresponding path program 1 times [2021-10-11 02:28:47,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:47,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092125530] [2021-10-11 02:28:47,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:47,241 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 02:28:47,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092125530] [2021-10-11 02:28:47,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:47,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:47,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506972502] [2021-10-11 02:28:47,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:47,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:47,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:47,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:47,243 INFO L87 Difference]: Start difference. First operand 23 states and 35 transitions. Second operand 4 states. [2021-10-11 02:28:47,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:47,264 INFO L93 Difference]: Finished difference Result 33 states and 49 transitions. [2021-10-11 02:28:47,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:47,264 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:28:47,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:47,265 INFO L225 Difference]: With dead ends: 33 [2021-10-11 02:28:47,265 INFO L226 Difference]: Without dead ends: 33 [2021-10-11 02:28:47,265 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 02:28:47,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-11 02:28:47,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 23. [2021-10-11 02:28:47,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 02:28:47,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 34 transitions. [2021-10-11 02:28:47,268 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 34 transitions. Word has length 11 [2021-10-11 02:28:47,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:47,268 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 34 transitions. [2021-10-11 02:28:47,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:47,268 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2021-10-11 02:28:47,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:28:47,269 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:47,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:47,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:28:47,269 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:28:47,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:47,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1331024839, now seen corresponding path program 1 times [2021-10-11 02:28:47,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:47,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519838831] [2021-10-11 02:28:47,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:47,302 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 02:28:47,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519838831] [2021-10-11 02:28:47,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:47,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:47,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68101688] [2021-10-11 02:28:47,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:47,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:47,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:47,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:47,304 INFO L87 Difference]: Start difference. First operand 23 states and 34 transitions. Second operand 4 states. [2021-10-11 02:28:47,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:47,319 INFO L93 Difference]: Finished difference Result 31 states and 44 transitions. [2021-10-11 02:28:47,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:47,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2021-10-11 02:28:47,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:47,321 INFO L225 Difference]: With dead ends: 31 [2021-10-11 02:28:47,321 INFO L226 Difference]: Without dead ends: 31 [2021-10-11 02:28:47,321 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 02:28:47,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-11 02:28:47,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2021-10-11 02:28:47,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 02:28:47,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 33 transitions. [2021-10-11 02:28:47,324 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 33 transitions. Word has length 12 [2021-10-11 02:28:47,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:47,324 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 33 transitions. [2021-10-11 02:28:47,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:47,324 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2021-10-11 02:28:47,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:28:47,325 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:47,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:47,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:28:47,325 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:28:47,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:47,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1688118669, now seen corresponding path program 1 times [2021-10-11 02:28:47,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:47,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498286385] [2021-10-11 02:28:47,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:47,357 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 02:28:47,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498286385] [2021-10-11 02:28:47,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:47,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:47,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550877714] [2021-10-11 02:28:47,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:47,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:47,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:47,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:47,359 INFO L87 Difference]: Start difference. First operand 23 states and 33 transitions. Second operand 4 states. [2021-10-11 02:28:47,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:47,374 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2021-10-11 02:28:47,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:47,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-10-11 02:28:47,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:47,375 INFO L225 Difference]: With dead ends: 29 [2021-10-11 02:28:47,375 INFO L226 Difference]: Without dead ends: 29 [2021-10-11 02:28:47,376 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 02:28:47,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-11 02:28:47,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2021-10-11 02:28:47,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 02:28:47,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2021-10-11 02:28:47,378 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 32 transitions. Word has length 13 [2021-10-11 02:28:47,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:47,379 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 32 transitions. [2021-10-11 02:28:47,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:47,379 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2021-10-11 02:28:47,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:28:47,379 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:47,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:47,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:28:47,380 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:28:47,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:47,380 INFO L82 PathProgramCache]: Analyzing trace with hash 792287246, now seen corresponding path program 1 times [2021-10-11 02:28:47,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:47,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233054010] [2021-10-11 02:28:47,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:47,410 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 02:28:47,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233054010] [2021-10-11 02:28:47,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:47,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:28:47,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818717636] [2021-10-11 02:28:47,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:28:47,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:47,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:28:47,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:28:47,412 INFO L87 Difference]: Start difference. First operand 23 states and 32 transitions. Second operand 4 states. [2021-10-11 02:28:47,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:47,426 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2021-10-11 02:28:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:28:47,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-10-11 02:28:47,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:47,427 INFO L225 Difference]: With dead ends: 23 [2021-10-11 02:28:47,427 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:28:47,427 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 02:28:47,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:28:47,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:28:47,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:28:47,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:28:47,428 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-11 02:28:47,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:47,428 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:28:47,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:28:47,428 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:28:47,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:28:47,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:28:47,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:28:47 BoogieIcfgContainer [2021-10-11 02:28:47,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:28:47,433 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:28:47,433 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:28:47,433 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:28:47,434 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:46" (3/4) ... [2021-10-11 02:28:47,437 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:28:47,448 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-11 02:28:47,449 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:28:47,449 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 02:28:47,450 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:28:47,500 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d2577d8-4f05-4552-940e-e44f3af0d29e/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:28:47,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:28:47,501 INFO L168 Benchmark]: Toolchain (without parser) took 2397.77 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 60.3 MB in the beginning and 67.7 MB in the end (delta: -7.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:47,502 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 50.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:47,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.63 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 60.1 MB in the beginning and 100.3 MB in the end (delta: -40.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:47,503 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.73 ms. Allocated memory is still 125.8 MB. Free memory was 100.3 MB in the beginning and 98.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:47,503 INFO L168 Benchmark]: Boogie Preprocessor took 30.33 ms. Allocated memory is still 125.8 MB. Free memory was 98.6 MB in the beginning and 97.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:47,503 INFO L168 Benchmark]: RCFGBuilder took 701.46 ms. Allocated memory is still 125.8 MB. Free memory was 97.1 MB in the beginning and 63.5 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:47,504 INFO L168 Benchmark]: TraceAbstraction took 1283.57 ms. Allocated memory is still 125.8 MB. Free memory was 63.5 MB in the beginning and 71.9 MB in the end (delta: -8.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:28:47,504 INFO L168 Benchmark]: Witness Printer took 66.85 ms. Allocated memory is still 125.8 MB. Free memory was 71.9 MB in the beginning and 67.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:28:47,506 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 94.4 MB. Free memory is still 50.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.63 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 60.1 MB in the beginning and 100.3 MB in the end (delta: -40.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.73 ms. Allocated memory is still 125.8 MB. Free memory was 100.3 MB in the beginning and 98.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.33 ms. Allocated memory is still 125.8 MB. Free memory was 98.6 MB in the beginning and 97.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 701.46 ms. Allocated memory is still 125.8 MB. Free memory was 97.1 MB in the beginning and 63.5 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1283.57 ms. Allocated memory is still 125.8 MB. Free memory was 63.5 MB in the beginning and 71.9 MB in the end (delta: -8.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 66.85 ms. Allocated memory is still 125.8 MB. Free memory was 71.9 MB in the beginning and 67.7 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: 149]: 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, 27 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 382 SDtfs, 289 SDslu, 430 SDs, 0 SdLazy, 81 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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: 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 104 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 3798 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...