./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer --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 871be16186d4378aec884efd2352a47ca4eb57bc .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:48,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:48,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:48,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:48,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:48,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:48,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:48,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:48,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:48,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:48,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:48,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:48,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:48,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:48,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:48,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:48,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:48,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:48,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:48,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:48,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:48,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:48,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:48,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:48,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:48,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:48,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:48,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:48,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:48,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:48,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:48,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:48,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:48,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:48,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:48,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:48,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:48,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:48,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:48,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:48,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:48,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-10-22 09:02:48,406 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:48,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:48,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:48,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:48,418 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:48,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:48,418 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:48,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:48,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:48,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:48,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:48,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:48,419 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 09:02:48,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:48,420 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:48,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:48,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:48,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:48,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:48,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:48,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:48,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:48,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:48,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:48,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:48,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:48,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:48,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer 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 -> 871be16186d4378aec884efd2352a47ca4eb57bc [2019-10-22 09:02:48,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:48,467 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:48,471 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:48,472 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:48,473 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:48,473 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c [2019-10-22 09:02:48,528 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/data/b200ff53e/9bf5eff2454049be9f28755e3bdfb296/FLAG804138796 [2019-10-22 09:02:48,937 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:48,937 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c [2019-10-22 09:02:48,942 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/data/b200ff53e/9bf5eff2454049be9f28755e3bdfb296/FLAG804138796 [2019-10-22 09:02:48,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/data/b200ff53e/9bf5eff2454049be9f28755e3bdfb296 [2019-10-22 09:02:48,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:48,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:48,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:48,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:48,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:48,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:48" (1/1) ... [2019-10-22 09:02:48,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428f38d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:48, skipping insertion in model container [2019-10-22 09:02:48,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:48" (1/1) ... [2019-10-22 09:02:48,969 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:48,981 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:49,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:49,106 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:49,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:49,192 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:49,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49 WrapperNode [2019-10-22 09:02:49,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:49,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:49,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:49,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:49,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:49,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:49,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:49,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:49,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... [2019-10-22 09:02:49,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:49,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:49,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:49,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:49,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/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 [2019-10-22 09:02:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:49,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure mc91 [2019-10-22 09:02:49,329 INFO L138 BoogieDeclarations]: Found implementation of procedure mc91 [2019-10-22 09:02:49,528 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:49,529 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 09:02:49,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:49 BoogieIcfgContainer [2019-10-22 09:02:49,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:49,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:49,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:49,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:49,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:48" (1/3) ... [2019-10-22 09:02:49,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd768a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:49, skipping insertion in model container [2019-10-22 09:02:49,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:49" (2/3) ... [2019-10-22 09:02:49,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd768a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:49, skipping insertion in model container [2019-10-22 09:02:49,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:49" (3/3) ... [2019-10-22 09:02:49,539 INFO L109 eAbstractionObserver]: Analyzing ICFG McCarthy91_Recursion.c [2019-10-22 09:02:49,546 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:49,553 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-22 09:02:49,567 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-22 09:02:49,591 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:49,592 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:02:49,592 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:49,592 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:49,592 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:49,593 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:49,593 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:49,593 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-22 09:02:49,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 09:02:49,613 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:49,613 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 09:02:49,615 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:02:49,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:49,620 INFO L82 PathProgramCache]: Analyzing trace with hash 30304495, now seen corresponding path program 1 times [2019-10-22 09:02:49,628 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:49,628 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458965768] [2019-10-22 09:02:49,628 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:49,628 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:49,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:49,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:49,772 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458965768] [2019-10-22 09:02:49,773 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:49,773 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:49,773 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599956755] [2019-10-22 09:02:49,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:49,778 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:49,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:49,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:49,793 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-10-22 09:02:50,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:50,090 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2019-10-22 09:02:50,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:50,094 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-10-22 09:02:50,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:50,107 INFO L225 Difference]: With dead ends: 40 [2019-10-22 09:02:50,108 INFO L226 Difference]: Without dead ends: 32 [2019-10-22 09:02:50,111 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:50,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-10-22 09:02:50,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2019-10-22 09:02:50,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 09:02:50,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-10-22 09:02:50,157 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 5 [2019-10-22 09:02:50,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:50,158 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-10-22 09:02:50,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:50,158 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2019-10-22 09:02:50,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 09:02:50,158 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:50,159 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 09:02:50,159 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:02:50,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:50,159 INFO L82 PathProgramCache]: Analyzing trace with hash 30304655, now seen corresponding path program 1 times [2019-10-22 09:02:50,160 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:50,160 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842702739] [2019-10-22 09:02:50,160 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,160 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:50,178 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842702739] [2019-10-22 09:02:50,178 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:50,178 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:02:50,179 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963745719] [2019-10-22 09:02:50,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:50,180 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:50,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:50,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:50,181 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand 3 states. [2019-10-22 09:02:50,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:50,213 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2019-10-22 09:02:50,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:50,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-10-22 09:02:50,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:50,215 INFO L225 Difference]: With dead ends: 29 [2019-10-22 09:02:50,215 INFO L226 Difference]: Without dead ends: 28 [2019-10-22 09:02:50,216 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:50,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-10-22 09:02:50,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2019-10-22 09:02:50,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 09:02:50,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2019-10-22 09:02:50,223 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 5 [2019-10-22 09:02:50,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:50,224 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2019-10-22 09:02:50,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:50,224 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-10-22 09:02:50,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 09:02:50,224 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:50,225 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:50,225 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:02:50,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:50,225 INFO L82 PathProgramCache]: Analyzing trace with hash 939439389, now seen corresponding path program 1 times [2019-10-22 09:02:50,226 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:50,226 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213192901] [2019-10-22 09:02:50,226 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,226 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:50,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:50,243 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213192901] [2019-10-22 09:02:50,243 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:50,243 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:02:50,243 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197541214] [2019-10-22 09:02:50,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:50,244 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:50,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:50,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:50,244 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 3 states. [2019-10-22 09:02:50,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:50,263 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2019-10-22 09:02:50,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:50,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-10-22 09:02:50,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:50,265 INFO L225 Difference]: With dead ends: 28 [2019-10-22 09:02:50,265 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 09:02:50,266 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:50,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 09:02:50,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2019-10-22 09:02:50,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-22 09:02:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-10-22 09:02:50,272 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 6 [2019-10-22 09:02:50,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:50,272 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-10-22 09:02:50,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:50,273 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-10-22 09:02:50,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 09:02:50,273 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:50,273 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 09:02:50,274 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:02:50,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:50,274 INFO L82 PathProgramCache]: Analyzing trace with hash 939444354, now seen corresponding path program 1 times [2019-10-22 09:02:50,274 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:50,275 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055484385] [2019-10-22 09:02:50,275 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,275 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:50,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:50,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055484385] [2019-10-22 09:02:50,312 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:50,312 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:50,312 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249486340] [2019-10-22 09:02:50,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:50,313 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:50,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:50,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:50,314 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 5 states. [2019-10-22 09:02:50,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:50,385 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2019-10-22 09:02:50,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:50,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-10-22 09:02:50,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:50,387 INFO L225 Difference]: With dead ends: 39 [2019-10-22 09:02:50,387 INFO L226 Difference]: Without dead ends: 38 [2019-10-22 09:02:50,388 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:50,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-22 09:02:50,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2019-10-22 09:02:50,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-22 09:02:50,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2019-10-22 09:02:50,398 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 6 [2019-10-22 09:02:50,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:50,398 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2019-10-22 09:02:50,399 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:50,399 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2019-10-22 09:02:50,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:02:50,399 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:50,399 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:50,400 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:02:50,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:50,400 INFO L82 PathProgramCache]: Analyzing trace with hash 312291472, now seen corresponding path program 1 times [2019-10-22 09:02:50,400 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:50,400 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118780394] [2019-10-22 09:02:50,401 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,401 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:50,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:50,432 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118780394] [2019-10-22 09:02:50,432 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:50,432 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:50,433 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583337376] [2019-10-22 09:02:50,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:50,433 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:50,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:50,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:50,434 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 5 states. [2019-10-22 09:02:50,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:50,505 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2019-10-22 09:02:50,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:50,506 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-22 09:02:50,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:50,507 INFO L225 Difference]: With dead ends: 55 [2019-10-22 09:02:50,508 INFO L226 Difference]: Without dead ends: 54 [2019-10-22 09:02:50,508 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:50,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-10-22 09:02:50,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2019-10-22 09:02:50,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-10-22 09:02:50,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2019-10-22 09:02:50,525 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 10 [2019-10-22 09:02:50,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:50,526 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2019-10-22 09:02:50,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:50,526 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2019-10-22 09:02:50,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 09:02:50,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:50,527 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:50,527 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:02:50,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:50,527 INFO L82 PathProgramCache]: Analyzing trace with hash -904725729, now seen corresponding path program 1 times [2019-10-22 09:02:50,527 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:50,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161211220] [2019-10-22 09:02:50,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:50,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:50,648 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 09:02:50,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161211220] [2019-10-22 09:02:50,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951657981] [2019-10-22 09:02:50,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:50,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-22 09:02:50,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:50,832 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:50,833 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:02:50,833 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2019-10-22 09:02:50,833 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675704139] [2019-10-22 09:02:50,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-22 09:02:50,834 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:50,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-22 09:02:50,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2019-10-22 09:02:50,834 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 15 states. [2019-10-22 09:02:51,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:51,111 INFO L93 Difference]: Finished difference Result 70 states and 89 transitions. [2019-10-22 09:02:51,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 09:02:51,112 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 18 [2019-10-22 09:02:51,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:51,113 INFO L225 Difference]: With dead ends: 70 [2019-10-22 09:02:51,113 INFO L226 Difference]: Without dead ends: 69 [2019-10-22 09:02:51,114 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2019-10-22 09:02:51,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-10-22 09:02:51,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 46. [2019-10-22 09:02:51,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-22 09:02:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2019-10-22 09:02:51,124 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 18 [2019-10-22 09:02:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:51,124 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2019-10-22 09:02:51,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-22 09:02:51,125 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2019-10-22 09:02:51,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:02:51,125 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:51,125 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:51,326 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:51,327 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:02:51,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:51,327 INFO L82 PathProgramCache]: Analyzing trace with hash 2018278482, now seen corresponding path program 1 times [2019-10-22 09:02:51,327 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:51,327 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636872751] [2019-10-22 09:02:51,327 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,327 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 09:02:51,381 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636872751] [2019-10-22 09:02:51,381 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:51,381 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:02:51,382 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725219574] [2019-10-22 09:02:51,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:51,382 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:51,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:51,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:51,383 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand 7 states. [2019-10-22 09:02:51,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:51,546 INFO L93 Difference]: Finished difference Result 98 states and 127 transitions. [2019-10-22 09:02:51,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 09:02:51,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-10-22 09:02:51,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:51,551 INFO L225 Difference]: With dead ends: 98 [2019-10-22 09:02:51,551 INFO L226 Difference]: Without dead ends: 97 [2019-10-22 09:02:51,552 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:02:51,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-10-22 09:02:51,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 88. [2019-10-22 09:02:51,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-10-22 09:02:51,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 108 transitions. [2019-10-22 09:02:51,569 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 108 transitions. Word has length 19 [2019-10-22 09:02:51,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:51,569 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 108 transitions. [2019-10-22 09:02:51,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:51,570 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 108 transitions. [2019-10-22 09:02:51,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 09:02:51,576 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:51,576 INFO L380 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-10-22 09:02:51,577 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 09:02:51,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:51,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1924479575, now seen corresponding path program 1 times [2019-10-22 09:02:51,578 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:51,578 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278752825] [2019-10-22 09:02:51,578 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,578 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:51,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:51,692 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-22 09:02:51,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278752825] [2019-10-22 09:02:51,693 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:51,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:02:51,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046480873] [2019-10-22 09:02:51,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:02:51,693 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:51,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:02:51,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:51,694 INFO L87 Difference]: Start difference. First operand 88 states and 108 transitions. Second operand 8 states. [2019-10-22 09:02:51,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:51,851 INFO L93 Difference]: Finished difference Result 92 states and 120 transitions. [2019-10-22 09:02:51,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-22 09:02:51,851 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-10-22 09:02:51,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:51,852 INFO L225 Difference]: With dead ends: 92 [2019-10-22 09:02:51,852 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:02:51,853 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2019-10-22 09:02:51,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:02:51,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:02:51,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:02:51,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:02:51,854 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-10-22 09:02:51,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:51,855 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:51,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:02:51,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:51,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:02:51,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 09:02:52,160 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 09:02:52,161 INFO L439 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2019-10-22 09:02:52,161 INFO L443 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2019-10-22 09:02:52,161 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 17) no Hoare annotation was computed. [2019-10-22 09:02:52,161 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 09:02:52,161 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 09:02:52,161 INFO L443 ceAbstractionStarter]: For program point mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2019-10-22 09:02:52,162 INFO L443 ceAbstractionStarter]: For program point mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2019-10-22 09:02:52,162 INFO L443 ceAbstractionStarter]: For program point mc91FINAL(lines 8 12) no Hoare annotation was computed. [2019-10-22 09:02:52,162 INFO L443 ceAbstractionStarter]: For program point mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2019-10-22 09:02:52,162 INFO L443 ceAbstractionStarter]: For program point mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2019-10-22 09:02:52,162 INFO L443 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2019-10-22 09:02:52,162 INFO L443 ceAbstractionStarter]: For program point L10(lines 10 11) no Hoare annotation was computed. [2019-10-22 09:02:52,162 INFO L443 ceAbstractionStarter]: For program point L11-1(line 11) no Hoare annotation was computed. [2019-10-22 09:02:52,162 INFO L443 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-10-22 09:02:52,162 INFO L439 ceAbstractionStarter]: At program point L11-2(line 11) the Hoare annotation is: (let ((.cse0 (= mc91_~n |mc91_#in~n|))) (and (or (not (<= |mc91_#in~n| 2147483648)) (not (<= 91 |mc91_#in~n|)) (and (<= mc91_~n 2147483647) .cse0)) (or (and (<= mc91_~n 100) .cse0) (not (<= |mc91_#in~n| 2147483647)) (not (<= 0 (+ |mc91_#in~n| 2147483648)))))) [2019-10-22 09:02:52,163 INFO L443 ceAbstractionStarter]: For program point L10-2(line 10) no Hoare annotation was computed. [2019-10-22 09:02:52,163 INFO L443 ceAbstractionStarter]: For program point L11-3(line 11) no Hoare annotation was computed. [2019-10-22 09:02:52,163 INFO L439 ceAbstractionStarter]: At program point L11-4(line 11) the Hoare annotation is: (let ((.cse0 (= mc91_~n |mc91_#in~n|))) (and (or (not (<= |mc91_#in~n| 2147483647)) (not (<= 0 (+ |mc91_#in~n| 2147483648))) (and (<= 91 |mc91_#t~ret0|) (and (<= |mc91_#t~ret0| 2147483648) .cse0))) (or (not (<= |mc91_#in~n| 2147483648)) (not (<= 91 |mc91_#in~n|)) (and (<= mc91_~n 100) .cse0)))) [2019-10-22 09:02:52,163 INFO L446 ceAbstractionStarter]: At program point mc91ENTRY(lines 8 12) the Hoare annotation is: true [2019-10-22 09:02:52,163 INFO L443 ceAbstractionStarter]: For program point L11-5(line 11) no Hoare annotation was computed. [2019-10-22 09:02:52,163 INFO L443 ceAbstractionStarter]: For program point mc91EXIT(lines 8 12) no Hoare annotation was computed. [2019-10-22 09:02:52,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:52 BoogieIcfgContainer [2019-10-22 09:02:52,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:52,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:52,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:52,167 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:52,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:49" (3/4) ... [2019-10-22 09:02:52,171 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:02:52,178 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure mc91 [2019-10-22 09:02:52,182 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 09:02:52,182 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 09:02:52,222 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fc18c5d9-0925-4602-a714-5f7bf483c78a/bin/uautomizer/witness.graphml [2019-10-22 09:02:52,222 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:52,224 INFO L168 Benchmark]: Toolchain (without parser) took 3268.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 944.5 MB in the beginning and 884.2 MB in the end (delta: 60.3 MB). Peak memory consumption was 225.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:52,225 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:52,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -215.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:52,225 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:52,226 INFO L168 Benchmark]: Boogie Preprocessor took 20.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:52,230 INFO L168 Benchmark]: RCFGBuilder took 285.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:52,230 INFO L168 Benchmark]: TraceAbstraction took 2635.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 890.8 MB in the end (delta: 250.3 MB). Peak memory consumption was 250.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:52,231 INFO L168 Benchmark]: Witness Printer took 55.56 ms. Allocated memory is still 1.2 GB. Free memory was 890.8 MB in the beginning and 884.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:52,232 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 237.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -215.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 285.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2635.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 890.8 MB in the end (delta: 250.3 MB). Peak memory consumption was 250.3 MB. Max. memory is 11.5 GB. * Witness Printer took 55.56 ms. Allocated memory is still 1.2 GB. Free memory was 890.8 MB in the beginning and 884.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 4 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 125 SDtfs, 213 SDslu, 226 SDs, 0 SdLazy, 403 SolverSat, 103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=7, 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, 8 MinimizatonAttempts, 51 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 58 PreInvPairs, 58 NumberOfFragments, 84 HoareAnnotationTreeSize, 58 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 309 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 4855 SizeOfPredicates, 4 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 53/61 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...