./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrpbrk.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrpbrk.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eec7850a55859668859d25c9503478e74955da1a ............................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 15:46:44,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 15:46:44,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 15:46:44,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 15:46:44,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 15:46:44,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 15:46:44,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 15:46:44,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 15:46:44,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 15:46:44,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 15:46:44,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 15:46:44,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 15:46:44,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 15:46:44,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 15:46:44,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 15:46:44,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 15:46:44,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 15:46:44,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 15:46:44,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 15:46:44,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 15:46:44,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 15:46:44,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 15:46:44,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 15:46:44,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 15:46:44,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 15:46:44,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 15:46:44,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 15:46:44,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 15:46:44,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 15:46:44,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 15:46:44,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 15:46:44,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 15:46:44,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 15:46:44,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 15:46:44,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 15:46:44,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 15:46:44,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 15:46:44,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 15:46:44,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 15:46:44,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 15:46:44,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 15:46:44,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-09 15:46:44,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 15:46:44,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 15:46:44,373 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 15:46:44,374 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 15:46:44,374 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 15:46:44,374 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 15:46:44,374 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 15:46:44,374 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 15:46:44,374 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 15:46:44,374 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 15:46:44,375 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 15:46:44,375 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 15:46:44,375 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 15:46:44,375 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 15:46:44,375 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 15:46:44,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 15:46:44,376 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 15:46:44,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 15:46:44,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 15:46:44,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 15:46:44,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 15:46:44,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 15:46:44,376 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 15:46:44,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 15:46:44,377 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 15:46:44,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 15:46:44,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 15:46:44,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 15:46:44,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 15:46:44,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 15:46:44,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 15:46:44,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 15:46:44,378 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 15:46:44,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 15:46:44,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 15:46:44,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 15:46:44,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 15:46:44,378 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-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eec7850a55859668859d25c9503478e74955da1a [2020-12-09 15:46:44,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 15:46:44,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 15:46:44,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 15:46:44,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 15:46:44,576 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 15:46:44,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/cstrpbrk.c [2020-12-09 15:46:44,619 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/data/8c04f8d2c/b05a4316ce184ab8a1759cfb5c3d8941/FLAG3728e4d7c [2020-12-09 15:46:44,966 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 15:46:44,966 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/sv-benchmarks/c/termination-crafted-lit/cstrpbrk.c [2020-12-09 15:46:44,971 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/data/8c04f8d2c/b05a4316ce184ab8a1759cfb5c3d8941/FLAG3728e4d7c [2020-12-09 15:46:44,980 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/data/8c04f8d2c/b05a4316ce184ab8a1759cfb5c3d8941 [2020-12-09 15:46:44,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 15:46:44,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 15:46:44,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 15:46:44,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 15:46:44,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 15:46:44,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:46:44" (1/1) ... [2020-12-09 15:46:44,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57efe014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:44, skipping insertion in model container [2020-12-09 15:46:44,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:46:44" (1/1) ... [2020-12-09 15:46:44,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 15:46:45,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 15:46:45,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:46:45,130 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 15:46:45,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:46:45,158 INFO L208 MainTranslator]: Completed translation [2020-12-09 15:46:45,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:45 WrapperNode [2020-12-09 15:46:45,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 15:46:45,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 15:46:45,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 15:46:45,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 15:46:45,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:45" (1/1) ... [2020-12-09 15:46:45,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:45" (1/1) ... [2020-12-09 15:46:45,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 15:46:45,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 15:46:45,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 15:46:45,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 15:46:45,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:45" (1/1) ... [2020-12-09 15:46:45,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:45" (1/1) ... [2020-12-09 15:46:45,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:45" (1/1) ... [2020-12-09 15:46:45,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:45" (1/1) ... [2020-12-09 15:46:45,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:45" (1/1) ... [2020-12-09 15:46:45,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:45" (1/1) ... [2020-12-09 15:46:45,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:45" (1/1) ... [2020-12-09 15:46:45,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 15:46:45,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 15:46:45,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 15:46:45,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 15:46:45,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/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 [2020-12-09 15:46:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 15:46:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-09 15:46:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 15:46:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 15:46:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 15:46:45,588 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 15:46:45,588 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-09 15:46:45,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:46:45 BoogieIcfgContainer [2020-12-09 15:46:45,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 15:46:45,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 15:46:45,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 15:46:45,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 15:46:45,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:46:44" (1/3) ... [2020-12-09 15:46:45,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1cb34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:46:45, skipping insertion in model container [2020-12-09 15:46:45,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:46:45" (2/3) ... [2020-12-09 15:46:45,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1cb34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:46:45, skipping insertion in model container [2020-12-09 15:46:45,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:46:45" (3/3) ... [2020-12-09 15:46:45,598 INFO L111 eAbstractionObserver]: Analyzing ICFG cstrpbrk.c [2020-12-09 15:46:45,610 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 15:46:45,613 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-12-09 15:46:45,620 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-12-09 15:46:45,638 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 15:46:45,639 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 15:46:45,639 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 15:46:45,639 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 15:46:45,639 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 15:46:45,639 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 15:46:45,639 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 15:46:45,639 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 15:46:45,651 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-12-09 15:46:45,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-09 15:46:45,654 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:46:45,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-12-09 15:46:45,655 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 15:46:45,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:46:45,659 INFO L82 PathProgramCache]: Analyzing trace with hash 3791, now seen corresponding path program 1 times [2020-12-09 15:46:45,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:46:45,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929649337] [2020-12-09 15:46:45,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:46:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:46:45,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:46:45,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929649337] [2020-12-09 15:46:45,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:46:45,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 15:46:45,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361042079] [2020-12-09 15:46:45,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 15:46:45,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:46:45,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 15:46:45,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 15:46:45,780 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2020-12-09 15:46:45,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:46:45,812 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2020-12-09 15:46:45,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 15:46:45,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-12-09 15:46:45,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:46:45,819 INFO L225 Difference]: With dead ends: 35 [2020-12-09 15:46:45,819 INFO L226 Difference]: Without dead ends: 13 [2020-12-09 15:46:45,821 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 [2020-12-09 15:46:45,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-09 15:46:45,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-09 15:46:45,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-09 15:46:45,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2020-12-09 15:46:45,841 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 2 [2020-12-09 15:46:45,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:46:45,841 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2020-12-09 15:46:45,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 15:46:45,842 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2020-12-09 15:46:45,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 15:46:45,842 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:46:45,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 15:46:45,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 15:46:45,842 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 15:46:45,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:46:45,843 INFO L82 PathProgramCache]: Analyzing trace with hash 117563, now seen corresponding path program 1 times [2020-12-09 15:46:45,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:46:45,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127339319] [2020-12-09 15:46:45,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:46:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:46:45,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:46:45,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127339319] [2020-12-09 15:46:45,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:46:45,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 15:46:45,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093868412] [2020-12-09 15:46:45,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 15:46:45,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:46:45,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 15:46:45,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 15:46:45,862 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 3 states. [2020-12-09 15:46:45,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:46:45,875 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-12-09 15:46:45,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 15:46:45,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-09 15:46:45,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:46:45,876 INFO L225 Difference]: With dead ends: 13 [2020-12-09 15:46:45,876 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 15:46:45,877 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 [2020-12-09 15:46:45,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 15:46:45,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-09 15:46:45,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-09 15:46:45,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2020-12-09 15:46:45,879 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 3 [2020-12-09 15:46:45,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:46:45,879 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2020-12-09 15:46:45,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 15:46:45,880 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-12-09 15:46:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 15:46:45,880 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:46:45,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 15:46:45,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 15:46:45,880 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 15:46:45,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:46:45,881 INFO L82 PathProgramCache]: Analyzing trace with hash 112979453, now seen corresponding path program 1 times [2020-12-09 15:46:45,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:46:45,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130856039] [2020-12-09 15:46:45,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:46:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:46:45,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:46:45,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130856039] [2020-12-09 15:46:45,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:46:45,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 15:46:45,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542260218] [2020-12-09 15:46:45,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 15:46:45,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:46:45,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 15:46:45,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 15:46:45,903 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 3 states. [2020-12-09 15:46:45,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:46:45,914 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-12-09 15:46:45,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 15:46:45,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 15:46:45,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:46:45,914 INFO L225 Difference]: With dead ends: 11 [2020-12-09 15:46:45,914 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 15:46:45,915 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 [2020-12-09 15:46:45,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 15:46:45,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 15:46:45,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 15:46:45,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 15:46:45,915 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-12-09 15:46:45,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:46:45,915 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 15:46:45,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 15:46:45,916 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 15:46:45,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 15:46:45,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 15:46:45,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 15:46:45,942 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-12-09 15:46:45,942 INFO L262 CegarLoopResult]: For program point L31-1(lines 31 38) no Hoare annotation was computed. [2020-12-09 15:46:45,942 INFO L258 CegarLoopResult]: At program point L31-4(lines 31 38) the Hoare annotation is: (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647) [2020-12-09 15:46:45,942 INFO L262 CegarLoopResult]: For program point L31-5(lines 31 38) no Hoare annotation was computed. [2020-12-09 15:46:45,942 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-12-09 15:46:45,942 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-12-09 15:46:45,942 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-12-09 15:46:45,942 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 15:46:45,942 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-12-09 15:46:45,942 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-12-09 15:46:45,943 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 15:46:45,943 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2020-12-09 15:46:45,943 INFO L262 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-12-09 15:46:45,943 INFO L262 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-12-09 15:46:45,943 INFO L262 CegarLoopResult]: For program point L34-3(lines 34 35) no Hoare annotation was computed. [2020-12-09 15:46:45,943 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-12-09 15:46:45,943 INFO L258 CegarLoopResult]: At program point L34-5(lines 34 35) the Hoare annotation is: (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647) [2020-12-09 15:46:45,943 INFO L262 CegarLoopResult]: For program point L34-6(lines 34 35) no Hoare annotation was computed. [2020-12-09 15:46:45,943 INFO L262 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-12-09 15:46:45,943 INFO L258 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (and (<= 1 ULTIMATE.start_build_nondet_String_~length~0) (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)) [2020-12-09 15:46:45,943 INFO L262 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-12-09 15:46:45,944 INFO L258 CegarLoopResult]: At program point L18-3(line 18) the Hoare annotation is: (and (<= 1 ULTIMATE.start_build_nondet_String_~length~0) (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647)) [2020-12-09 15:46:45,944 INFO L262 CegarLoopResult]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2020-12-09 15:46:45,944 INFO L262 CegarLoopResult]: For program point L14-5(lines 14 16) no Hoare annotation was computed. [2020-12-09 15:46:45,944 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-12-09 15:46:45,944 INFO L258 CegarLoopResult]: At program point L39(lines 26 40) the Hoare annotation is: (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647) [2020-12-09 15:46:45,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:46:45 BoogieIcfgContainer [2020-12-09 15:46:45,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 15:46:45,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 15:46:45,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 15:46:45,956 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 15:46:45,956 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:46:45" (3/4) ... [2020-12-09 15:46:45,958 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 15:46:45,965 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-09 15:46:45,965 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 15:46:45,965 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 15:46:46,003 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7d609aeb-5857-4279-9851-5032b19056a0/bin/utaipan/witness.graphml [2020-12-09 15:46:46,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 15:46:46,004 INFO L168 Benchmark]: Toolchain (without parser) took 1019.79 ms. Allocated memory is still 100.7 MB. Free memory was 64.1 MB in the beginning and 46.7 MB in the end (delta: 17.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-12-09 15:46:46,004 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 100.7 MB. Free memory is still 80.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:46:46,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.37 ms. Allocated memory is still 100.7 MB. Free memory was 64.0 MB in the beginning and 77.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 15:46:46,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.34 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 75.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 15:46:46,006 INFO L168 Benchmark]: Boogie Preprocessor took 21.47 ms. Allocated memory is still 100.7 MB. Free memory was 75.4 MB in the beginning and 74.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:46:46,006 INFO L168 Benchmark]: RCFGBuilder took 378.07 ms. Allocated memory is still 100.7 MB. Free memory was 74.2 MB in the beginning and 50.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-09 15:46:46,006 INFO L168 Benchmark]: TraceAbstraction took 363.58 ms. Allocated memory is still 100.7 MB. Free memory was 50.2 MB in the beginning and 49.8 MB in the end (delta: 416.3 kB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2020-12-09 15:46:46,007 INFO L168 Benchmark]: Witness Printer took 47.48 ms. Allocated memory is still 100.7 MB. Free memory was 49.8 MB in the beginning and 46.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 15:46:46,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 100.7 MB. Free memory is still 80.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 174.37 ms. Allocated memory is still 100.7 MB. Free memory was 64.0 MB in the beginning and 77.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.34 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 75.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.47 ms. Allocated memory is still 100.7 MB. Free memory was 75.4 MB in the beginning and 74.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 378.07 ms. Allocated memory is still 100.7 MB. Free memory was 74.2 MB in the beginning and 50.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 363.58 ms. Allocated memory is still 100.7 MB. Free memory was 50.2 MB in the beginning and 49.8 MB in the end (delta: 416.3 kB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. * Witness Printer took 47.48 ms. Allocated memory is still 100.7 MB. Free memory was 49.8 MB in the beginning and 46.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 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: 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 <= length && length <= 2147483647 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: length <= 2147483647 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 <= length && length <= 2147483647 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: length <= 2147483647 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: length <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 32 SDslu, 0 SDs, 0 SdLazy, 28 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 23 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...