./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f39f60c3148e6a8957b92a35d12d506fd8229368 ......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:37:07,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:37:07,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:37:07,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:37:07,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:37:07,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:37:07,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:37:07,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:37:07,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:37:07,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:37:07,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:37:07,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:37:07,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:37:07,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:37:07,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:37:07,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:37:07,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:37:07,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:37:07,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:37:07,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:37:07,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:37:07,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:37:07,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:37:07,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:37:07,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:37:07,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:37:07,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:37:07,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:37:07,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:37:07,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:37:07,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:37:07,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:37:07,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:37:07,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:37:07,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:37:07,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:37:07,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:37:07,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:37:07,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:37:07,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:37:07,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:37:07,980 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-15 19:37:08,007 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:37:08,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:37:08,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:37:08,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:37:08,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:37:08,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:37:08,010 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:37:08,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:37:08,011 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:37:08,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:37:08,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:37:08,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:37:08,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:37:08,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:37:08,012 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-15 19:37:08,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:37:08,012 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:37:08,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:37:08,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:37:08,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:37:08,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:37:08,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:37:08,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:37:08,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:37:08,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:37:08,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:37:08,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:37:08,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:37:08,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:37:08,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f39f60c3148e6a8957b92a35d12d506fd8229368 [2021-10-15 19:37:08,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:37:08,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:37:08,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:37:08,303 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:37:08,305 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:37:08,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c [2021-10-15 19:37:08,397 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/data/12eb179e6/4929c33db1424a4b8769cf4dd1ffecf8/FLAGa1dd1757d [2021-10-15 19:37:09,048 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:37:09,050 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/sv-benchmarks/c/termination-crafted-lit/cstrcspn.c [2021-10-15 19:37:09,063 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/data/12eb179e6/4929c33db1424a4b8769cf4dd1ffecf8/FLAGa1dd1757d [2021-10-15 19:37:09,388 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/data/12eb179e6/4929c33db1424a4b8769cf4dd1ffecf8 [2021-10-15 19:37:09,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:37:09,395 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:37:09,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:37:09,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:37:09,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:37:09,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:37:09" (1/1) ... [2021-10-15 19:37:09,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484518a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09, skipping insertion in model container [2021-10-15 19:37:09,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:37:09" (1/1) ... [2021-10-15 19:37:09,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:37:09,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:37:09,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:37:09,715 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:37:09,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:37:09,764 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:37:09,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09 WrapperNode [2021-10-15 19:37:09,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:37:09,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:37:09,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:37:09,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:37:09,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09" (1/1) ... [2021-10-15 19:37:09,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09" (1/1) ... [2021-10-15 19:37:09,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:37:09,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:37:09,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:37:09,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:37:09,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09" (1/1) ... [2021-10-15 19:37:09,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09" (1/1) ... [2021-10-15 19:37:09,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09" (1/1) ... [2021-10-15 19:37:09,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09" (1/1) ... [2021-10-15 19:37:09,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09" (1/1) ... [2021-10-15 19:37:09,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09" (1/1) ... [2021-10-15 19:37:09,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09" (1/1) ... [2021-10-15 19:37:09,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:37:09,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:37:09,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:37:09,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:37:09,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09" (1/1) ... [2021-10-15 19:37:09,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:37:09,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:37:09,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:37:09,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:37:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:37:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-15 19:37:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:37:10,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:37:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:37:10,371 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:37:10,371 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-15 19:37:10,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:37:10 BoogieIcfgContainer [2021-10-15 19:37:10,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:37:10,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:37:10,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:37:10,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:37:10,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:37:09" (1/3) ... [2021-10-15 19:37:10,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282e1fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:37:10, skipping insertion in model container [2021-10-15 19:37:10,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:37:09" (2/3) ... [2021-10-15 19:37:10,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282e1fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:37:10, skipping insertion in model container [2021-10-15 19:37:10,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:37:10" (3/3) ... [2021-10-15 19:37:10,384 INFO L111 eAbstractionObserver]: Analyzing ICFG cstrcspn.c [2021-10-15 19:37:10,390 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:37:10,391 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-15 19:37:10,458 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:37:10,466 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-15 19:37:10,466 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-15 19:37:10,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 34 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:37:10,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-15 19:37:10,493 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:37:10,494 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-15 19:37:10,495 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-15 19:37:10,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:37:10,507 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-10-15 19:37:10,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:37:10,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515570150] [2021-10-15 19:37:10,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:37:10,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:37:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:37:10,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:37:10,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:37:10,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515570150] [2021-10-15 19:37:10,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515570150] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:37:10,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:37:10,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:37:10,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243583216] [2021-10-15 19:37:10,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:37:10,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:37:10,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:37:10,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:37:10,762 INFO L87 Difference]: Start difference. First operand has 35 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 34 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:37:10,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:37:10,901 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2021-10-15 19:37:10,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:37:10,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-15 19:37:10,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:37:10,911 INFO L225 Difference]: With dead ends: 75 [2021-10-15 19:37:10,912 INFO L226 Difference]: Without dead ends: 30 [2021-10-15 19:37:10,916 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:37:10,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-15 19:37:10,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2021-10-15 19:37:10,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:37:10,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-10-15 19:37:10,955 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 4 [2021-10-15 19:37:10,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:37:10,956 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-10-15 19:37:10,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:37:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-10-15 19:37:10,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-15 19:37:10,958 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:37:10,959 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-15 19:37:10,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:37:10,960 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-15 19:37:10,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:37:10,964 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-10-15 19:37:10,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:37:10,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128295806] [2021-10-15 19:37:10,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:37:10,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:37:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:37:11,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:37:11,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:37:11,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128295806] [2021-10-15 19:37:11,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128295806] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:37:11,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:37:11,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:37:11,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82582549] [2021-10-15 19:37:11,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:37:11,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:37:11,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:37:11,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:37:11,012 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:37:11,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:37:11,045 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2021-10-15 19:37:11,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:37:11,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-15 19:37:11,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:37:11,047 INFO L225 Difference]: With dead ends: 27 [2021-10-15 19:37:11,047 INFO L226 Difference]: Without dead ends: 23 [2021-10-15 19:37:11,048 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:37:11,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-15 19:37:11,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2021-10-15 19:37:11,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:37:11,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-15 19:37:11,052 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 4 [2021-10-15 19:37:11,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:37:11,053 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-15 19:37:11,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:37:11,053 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-15 19:37:11,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-15 19:37:11,054 INFO L504 BasicCegarLoop]: Found error trace [2021-10-15 19:37:11,054 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-15 19:37:11,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 19:37:11,055 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-15 19:37:11,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:37:11,056 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2021-10-15 19:37:11,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:37:11,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700898605] [2021-10-15 19:37:11,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:37:11,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:37:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:37:11,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:37:11,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:37:11,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700898605] [2021-10-15 19:37:11,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700898605] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:37:11,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:37:11,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:37:11,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698507346] [2021-10-15 19:37:11,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:37:11,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:37:11,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:37:11,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:37:11,098 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:37:11,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:37:11,144 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-15 19:37:11,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:37:11,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-15 19:37:11,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-15 19:37:11,147 INFO L225 Difference]: With dead ends: 17 [2021-10-15 19:37:11,148 INFO L226 Difference]: Without dead ends: 0 [2021-10-15 19:37:11,148 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:37:11,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-15 19:37:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-15 19:37:11,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:37:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-15 19:37:11,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-10-15 19:37:11,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-15 19:37:11,151 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:37:11,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:37:11,152 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-15 19:37:11,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-15 19:37:11,155 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:37:11,157 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:37:11,157 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:37:11,157 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:37:11,158 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:37:11,158 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:37:11,158 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:37:11,159 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-15 19:37:11,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-15 19:37:11,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-15 19:37:11,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-15 19:37:11,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-15 19:37:11,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-15 19:37:11,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-15 19:37:11,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-15 19:37:11,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-15 19:37:11,194 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-10-15 19:37:11,195 INFO L853 garLoopResultBuilder]: At program point L19(lines 12 20) the Hoare annotation is: (and (<= 1 ULTIMATE.start_build_nondet_String_~length~0) (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)) [2021-10-15 19:37:11,195 INFO L860 garLoopResultBuilder]: At program point L19-1(lines 12 20) the Hoare annotation is: true [2021-10-15 19:37:11,195 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-10-15 19:37:11,195 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-15 19:37:11,195 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-10-15 19:37:11,196 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-15 19:37:11,196 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-10-15 19:37:11,196 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-15 19:37:11,196 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-10-15 19:37:11,196 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-15 19:37:11,196 INFO L857 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2021-10-15 19:37:11,197 INFO L857 garLoopResultBuilder]: For program point L33-3(lines 33 34) no Hoare annotation was computed. [2021-10-15 19:37:11,197 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-10-15 19:37:11,197 INFO L860 garLoopResultBuilder]: At program point L33-5(lines 33 34) the Hoare annotation is: true [2021-10-15 19:37:11,197 INFO L857 garLoopResultBuilder]: For program point L33-6(lines 33 34) no Hoare annotation was computed. [2021-10-15 19:37:11,197 INFO L857 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2021-10-15 19:37:11,197 INFO L857 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2021-10-15 19:37:11,198 INFO L860 garLoopResultBuilder]: At program point L42(lines 41 43) the Hoare annotation is: true [2021-10-15 19:37:11,198 INFO L860 garLoopResultBuilder]: At program point L38(lines 25 39) the Hoare annotation is: true [2021-10-15 19:37:11,198 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-10-15 19:37:11,198 INFO L857 garLoopResultBuilder]: For program point L30-1(lines 30 37) no Hoare annotation was computed. [2021-10-15 19:37:11,198 INFO L857 garLoopResultBuilder]: For program point L30-3(lines 30 37) no Hoare annotation was computed. [2021-10-15 19:37:11,199 INFO L860 garLoopResultBuilder]: At program point L30-4(lines 30 37) the Hoare annotation is: true [2021-10-15 19:37:11,199 INFO L857 garLoopResultBuilder]: For program point L30-5(lines 30 37) no Hoare annotation was computed. [2021-10-15 19:37:11,199 INFO L857 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2021-10-15 19:37:11,199 INFO L857 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-10-15 19:37:11,199 INFO L857 garLoopResultBuilder]: For program point L18-2(line 18) no Hoare annotation was computed. [2021-10-15 19:37:11,199 INFO L857 garLoopResultBuilder]: For program point L18-3(line 18) no Hoare annotation was computed. [2021-10-15 19:37:11,200 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2021-10-15 19:37:11,200 INFO L857 garLoopResultBuilder]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2021-10-15 19:37:11,200 INFO L857 garLoopResultBuilder]: For program point L14-3(lines 14 16) no Hoare annotation was computed. [2021-10-15 19:37:11,200 INFO L857 garLoopResultBuilder]: For program point L14-5(lines 14 16) no Hoare annotation was computed. [2021-10-15 19:37:11,200 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-10-15 19:37:11,200 INFO L857 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2021-10-15 19:37:11,205 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:37:11,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:37:11 BoogieIcfgContainer [2021-10-15 19:37:11,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:37:11,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:37:11,221 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:37:11,221 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:37:11,222 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:37:10" (3/4) ... [2021-10-15 19:37:11,225 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 19:37:11,236 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-15 19:37:11,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-15 19:37:11,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:37:11,287 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:37:11,287 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:37:11,289 INFO L168 Benchmark]: Toolchain (without parser) took 1894.08 ms. Allocated memory is still 127.9 MB. Free memory was 96.3 MB in the beginning and 53.7 MB in the end (delta: 42.7 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:11,290 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:37:11,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.41 ms. Allocated memory is still 127.9 MB. Free memory was 96.3 MB in the beginning and 103.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:11,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.57 ms. Allocated memory is still 127.9 MB. Free memory was 103.9 MB in the beginning and 102.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:11,291 INFO L168 Benchmark]: Boogie Preprocessor took 67.00 ms. Allocated memory is still 127.9 MB. Free memory was 102.2 MB in the beginning and 100.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:11,292 INFO L168 Benchmark]: RCFGBuilder took 472.72 ms. Allocated memory is still 127.9 MB. Free memory was 100.6 MB in the beginning and 89.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:11,292 INFO L168 Benchmark]: TraceAbstraction took 844.48 ms. Allocated memory is still 127.9 MB. Free memory was 88.8 MB in the beginning and 57.4 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:11,293 INFO L168 Benchmark]: Witness Printer took 66.79 ms. Allocated memory is still 127.9 MB. Free memory was 57.4 MB in the beginning and 54.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:37:11,295 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 364.41 ms. Allocated memory is still 127.9 MB. Free memory was 96.3 MB in the beginning and 103.9 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.57 ms. Allocated memory is still 127.9 MB. Free memory was 103.9 MB in the beginning and 102.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.00 ms. Allocated memory is still 127.9 MB. Free memory was 102.2 MB in the beginning and 100.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 472.72 ms. Allocated memory is still 127.9 MB. Free memory was 100.6 MB in the beginning and 89.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 844.48 ms. Allocated memory is still 127.9 MB. Free memory was 88.8 MB in the beginning and 57.4 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 66.79 ms. Allocated memory is still 127.9 MB. Free memory was 57.4 MB in the beginning and 54.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 749.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 15.5ms, AutomataDifference: 268.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 34.2ms, InitialAbstractionConstructionTime: 12.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 38 SDtfs, 47 SDslu, 20 SDs, 0 SdLazy, 52 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 133.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 28.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 15 NumberOfFragments, 12 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 17.0ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 9.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 11.9ms SsaConstructionTime, 47.4ms SatisfiabilityAnalysisTime, 120.7ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 <= length && length <= 2147483647 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-15 19:37:11,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92b3f76d-dde3-4ffe-b06b-9b9946e4624a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...