./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be --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 30d2fee99df05baf23c51b2012b75d1af7c997c2ecdfb3b70ac3637daf8339a3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:09:26,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:09:26,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:09:26,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:09:26,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:09:26,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:09:26,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:09:26,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:09:26,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:09:26,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:09:26,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:09:26,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:09:26,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:09:26,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:09:26,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:09:26,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:09:26,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:09:26,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:09:26,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:09:26,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:09:26,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:09:26,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:09:26,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:09:26,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:09:26,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:09:26,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:09:26,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:09:26,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:09:26,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:09:26,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:09:26,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:09:26,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:09:26,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:09:26,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:09:26,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:09:26,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:09:26,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:09:26,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:09:26,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:09:26,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:09:26,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:09:26,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-21 19:09:26,528 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:09:26,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:09:26,529 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:09:26,529 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:09:26,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:09:26,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:09:26,531 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:09:26,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:09:26,532 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:09:26,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:09:26,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:09:26,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:09:26,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:09:26,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:09:26,534 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-21 19:09:26,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:09:26,535 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:09:26,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:09:26,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:09:26,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:09:26,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:09:26,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:09:26,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:09:26,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:09:26,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:09:26,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:09:26,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:09:26,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:09:26,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:09:26,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30d2fee99df05baf23c51b2012b75d1af7c997c2ecdfb3b70ac3637daf8339a3 [2021-10-21 19:09:26,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:09:26,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:09:26,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:09:26,922 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:09:26,924 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:09:26,925 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2021-10-21 19:09:27,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/data/2e46a810e/6491563ce6ef4557a32392d4f619f622/FLAGdab2882e4 [2021-10-21 19:09:27,573 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:09:27,574 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2021-10-21 19:09:27,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/data/2e46a810e/6491563ce6ef4557a32392d4f619f622/FLAGdab2882e4 [2021-10-21 19:09:27,915 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/data/2e46a810e/6491563ce6ef4557a32392d4f619f622 [2021-10-21 19:09:27,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:09:27,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:09:27,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:09:27,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:09:27,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:09:27,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:09:27" (1/1) ... [2021-10-21 19:09:27,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166fcfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:27, skipping insertion in model container [2021-10-21 19:09:27,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:09:27" (1/1) ... [2021-10-21 19:09:27,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:09:27,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:09:28,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:09:28,156 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:09:28,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:09:28,206 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:09:28,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:28 WrapperNode [2021-10-21 19:09:28,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:09:28,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:09:28,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:09:28,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:09:28,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:28" (1/1) ... [2021-10-21 19:09:28,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:28" (1/1) ... [2021-10-21 19:09:28,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:09:28,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:09:28,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:09:28,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:09:28,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:28" (1/1) ... [2021-10-21 19:09:28,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:28" (1/1) ... [2021-10-21 19:09:28,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:28" (1/1) ... [2021-10-21 19:09:28,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:28" (1/1) ... [2021-10-21 19:09:28,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:28" (1/1) ... [2021-10-21 19:09:28,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:28" (1/1) ... [2021-10-21 19:09:28,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:28" (1/1) ... [2021-10-21 19:09:28,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:09:28,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:09:28,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:09:28,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:09:28,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:28" (1/1) ... [2021-10-21 19:09:28,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:09:28,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:09:28,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:09:28,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:09:28,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:09:28,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:09:28,584 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:09:28,586 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:09:28,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:09:28 BoogieIcfgContainer [2021-10-21 19:09:28,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:09:28,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:09:28,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:09:28,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:09:28,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:09:27" (1/3) ... [2021-10-21 19:09:28,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dc992f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:09:28, skipping insertion in model container [2021-10-21 19:09:28,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:09:28" (2/3) ... [2021-10-21 19:09:28,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dc992f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:09:28, skipping insertion in model container [2021-10-21 19:09:28,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:09:28" (3/3) ... [2021-10-21 19:09:28,615 INFO L111 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b.c [2021-10-21 19:09:28,629 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:09:28,630 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-21 19:09:28,693 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:09:28,701 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:09:28,701 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-21 19:09:28,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:28,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-21 19:09:28,742 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:09:28,743 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-21 19:09:28,744 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-21 19:09:28,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:28,751 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2021-10-21 19:09:28,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:28,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578513900] [2021-10-21 19:09:28,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:28,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:28,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:28,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:28,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578513900] [2021-10-21 19:09:28,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578513900] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:09:28,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:09:28,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 19:09:28,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783322436] [2021-10-21 19:09:28,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:09:28,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:28,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:09:28,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:28,972 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:29,011 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2021-10-21 19:09:29,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:09:29,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-21 19:09:29,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:29,025 INFO L225 Difference]: With dead ends: 24 [2021-10-21 19:09:29,026 INFO L226 Difference]: Without dead ends: 15 [2021-10-21 19:09:29,029 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:29,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-21 19:09:29,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-21 19:09:29,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-21 19:09:29,068 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2021-10-21 19:09:29,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:29,068 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-21 19:09:29,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,069 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-10-21 19:09:29,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-21 19:09:29,070 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:09:29,070 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-21 19:09:29,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:09:29,071 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-21 19:09:29,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:29,073 INFO L82 PathProgramCache]: Analyzing trace with hash 29869546, now seen corresponding path program 1 times [2021-10-21 19:09:29,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:29,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017663472] [2021-10-21 19:09:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:29,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:29,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:29,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:29,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017663472] [2021-10-21 19:09:29,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017663472] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:09:29,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:09:29,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 19:09:29,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5019770] [2021-10-21 19:09:29,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:09:29,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:29,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:09:29,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:29,168 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:29,213 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-10-21 19:09:29,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:09:29,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-21 19:09:29,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:29,216 INFO L225 Difference]: With dead ends: 15 [2021-10-21 19:09:29,216 INFO L226 Difference]: Without dead ends: 14 [2021-10-21 19:09:29,217 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:29,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-21 19:09:29,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-21 19:09:29,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.6) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-10-21 19:09:29,238 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2021-10-21 19:09:29,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:29,239 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-10-21 19:09:29,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,239 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-10-21 19:09:29,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-21 19:09:29,240 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:09:29,240 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-21 19:09:29,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:09:29,241 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-21 19:09:29,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:29,243 INFO L82 PathProgramCache]: Analyzing trace with hash 29869738, now seen corresponding path program 1 times [2021-10-21 19:09:29,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:29,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204619748] [2021-10-21 19:09:29,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:29,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:29,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:29,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:29,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204619748] [2021-10-21 19:09:29,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204619748] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:09:29,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:09:29,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 19:09:29,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262855555] [2021-10-21 19:09:29,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:09:29,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:29,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:09:29,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:29,300 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:29,318 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2021-10-21 19:09:29,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:09:29,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-21 19:09:29,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:29,320 INFO L225 Difference]: With dead ends: 14 [2021-10-21 19:09:29,320 INFO L226 Difference]: Without dead ends: 13 [2021-10-21 19:09:29,321 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:29,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-21 19:09:29,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-21 19:09:29,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.5) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-10-21 19:09:29,326 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2021-10-21 19:09:29,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:29,327 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-10-21 19:09:29,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,327 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-10-21 19:09:29,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-21 19:09:29,328 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:09:29,329 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-21 19:09:29,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:09:29,329 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-21 19:09:29,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:29,331 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2021-10-21 19:09:29,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:29,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213593661] [2021-10-21 19:09:29,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:29,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:29,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:29,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:29,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213593661] [2021-10-21 19:09:29,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213593661] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:09:29,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:09:29,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:09:29,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462114645] [2021-10-21 19:09:29,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:09:29,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:29,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:09:29,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:29,381 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:29,400 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2021-10-21 19:09:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:09:29,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-21 19:09:29,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:29,402 INFO L225 Difference]: With dead ends: 14 [2021-10-21 19:09:29,402 INFO L226 Difference]: Without dead ends: 13 [2021-10-21 19:09:29,403 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:29,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-21 19:09:29,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-10-21 19:09:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-10-21 19:09:29,408 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2021-10-21 19:09:29,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:29,409 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-10-21 19:09:29,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,409 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-10-21 19:09:29,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-21 19:09:29,410 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:09:29,410 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:09:29,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:09:29,411 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-21 19:09:29,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:29,413 INFO L82 PathProgramCache]: Analyzing trace with hash 925955982, now seen corresponding path program 1 times [2021-10-21 19:09:29,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:29,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162328121] [2021-10-21 19:09:29,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:29,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:29,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:29,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162328121] [2021-10-21 19:09:29,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162328121] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:09:29,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:09:29,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:09:29,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413713271] [2021-10-21 19:09:29,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:09:29,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:29,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:09:29,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:29,463 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:29,478 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-10-21 19:09:29,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:09:29,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-21 19:09:29,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:29,480 INFO L225 Difference]: With dead ends: 13 [2021-10-21 19:09:29,481 INFO L226 Difference]: Without dead ends: 12 [2021-10-21 19:09:29,481 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:29,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-21 19:09:29,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-10-21 19:09:29,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-10-21 19:09:29,486 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2021-10-21 19:09:29,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:29,487 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-21 19:09:29,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-10-21 19:09:29,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-21 19:09:29,488 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:09:29,488 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:09:29,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 19:09:29,489 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-21 19:09:29,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:09:29,490 INFO L82 PathProgramCache]: Analyzing trace with hash 925961940, now seen corresponding path program 1 times [2021-10-21 19:09:29,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:09:29,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574208540] [2021-10-21 19:09:29,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:09:29,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:09:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:09:29,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:09:29,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:09:29,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574208540] [2021-10-21 19:09:29,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574208540] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:09:29,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:09:29,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:09:29,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133092617] [2021-10-21 19:09:29,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:09:29,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:09:29,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:09:29,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:29,536 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:09:29,554 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2021-10-21 19:09:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:09:29,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-21 19:09:29,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:09:29,556 INFO L225 Difference]: With dead ends: 12 [2021-10-21 19:09:29,556 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:09:29,557 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:09:29,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:09:29,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:09:29,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:09:29,558 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-21 19:09:29,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:09:29,559 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:09:29,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:09:29,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:09:29,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:09:29,563 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:09:29,564 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:09:29,564 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:09:29,565 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:09:29,565 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:09:29,566 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:09:29,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-21 19:09:29,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:09:29,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:09:29,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:09:29,613 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-10-21 19:09:29,613 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:09:29,614 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-21 19:09:29,614 INFO L853 garLoopResultBuilder]: At program point L31(lines 15 32) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-10-21 19:09:29,615 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-10-21 19:09:29,615 INFO L857 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2021-10-21 19:09:29,615 INFO L857 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2021-10-21 19:09:29,615 INFO L857 garLoopResultBuilder]: For program point L23(lines 23 29) no Hoare annotation was computed. [2021-10-21 19:09:29,616 INFO L857 garLoopResultBuilder]: For program point L21(lines 21 29) no Hoare annotation was computed. [2021-10-21 19:09:29,616 INFO L853 garLoopResultBuilder]: At program point L23-2(lines 20 30) the Hoare annotation is: (and (<= ULTIMATE.start_main_~z~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647) (<= ULTIMATE.start_main_~x~0 2147483647)) [2021-10-21 19:09:29,617 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-10-21 19:09:29,617 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-21 19:09:29,617 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:09:29,618 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2021-10-21 19:09:29,618 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:09:29,618 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-10-21 19:09:29,619 INFO L857 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-10-21 19:09:29,619 INFO L857 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-21 19:09:29,619 INFO L857 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-10-21 19:09:29,619 INFO L857 garLoopResultBuilder]: For program point L20-2(lines 20 30) no Hoare annotation was computed. [2021-10-21 19:09:29,625 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:09:29,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:09:29 BoogieIcfgContainer [2021-10-21 19:09:29,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:09:29,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:09:29,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:09:29,644 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:09:29,645 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:09:28" (3/4) ... [2021-10-21 19:09:29,649 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:09:29,662 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-21 19:09:29,663 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-21 19:09:29,717 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:09:29,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:09:29,720 INFO L168 Benchmark]: Toolchain (without parser) took 1798.82 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 50.3 MB in the beginning and 70.6 MB in the end (delta: -20.3 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:29,721 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 66.6 MB in the beginning and 66.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:09:29,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.07 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 50.1 MB in the beginning and 93.0 MB in the end (delta: -42.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:29,722 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.17 ms. Allocated memory is still 115.3 MB. Free memory was 93.0 MB in the beginning and 91.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:09:29,723 INFO L168 Benchmark]: Boogie Preprocessor took 24.90 ms. Allocated memory is still 115.3 MB. Free memory was 91.6 MB in the beginning and 90.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:29,724 INFO L168 Benchmark]: RCFGBuilder took 321.88 ms. Allocated memory is still 115.3 MB. Free memory was 90.6 MB in the beginning and 81.7 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:29,725 INFO L168 Benchmark]: TraceAbstraction took 1043.07 ms. Allocated memory is still 115.3 MB. Free memory was 81.4 MB in the beginning and 73.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:29,726 INFO L168 Benchmark]: Witness Printer took 73.66 ms. Allocated memory is still 115.3 MB. Free memory was 73.2 MB in the beginning and 70.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:09:29,730 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 66.6 MB in the beginning and 66.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.07 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 50.1 MB in the beginning and 93.0 MB in the end (delta: -42.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.17 ms. Allocated memory is still 115.3 MB. Free memory was 93.0 MB in the beginning and 91.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.90 ms. Allocated memory is still 115.3 MB. Free memory was 91.6 MB in the beginning and 90.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 321.88 ms. Allocated memory is still 115.3 MB. Free memory was 90.6 MB in the beginning and 81.7 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1043.07 ms. Allocated memory is still 115.3 MB. Free memory was 81.4 MB in the beginning and 73.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Witness Printer took 73.66 ms. Allocated memory is still 115.3 MB. Free memory was 73.2 MB in the beginning and 70.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 934.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 23.0ms, AutomataDifference: 217.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 45.7ms, InitialAbstractionConstructionTime: 21.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 72 SDtfs, 56 SDslu, 0 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 95.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 56.1ms AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 98 FormulaSimplificationTreeSizeReduction, 26.2ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 10.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 13.1ms SsaConstructionTime, 79.2ms SatisfiabilityAnalysisTime, 209.7ms InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (z <= 2147483647 && y <= 2147483647) && x <= 2147483647 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-10-21 19:09:29,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f48ad6a5-0313-4ba1-a471-0262227d71b7/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...