./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G --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 06d48bd39a18f705c3286a70a8cdcced2226e3b2a16c7a38c85f5398d4bcad34 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:31:05,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:31:05,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:31:05,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:31:05,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:31:05,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:31:05,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:31:05,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:31:05,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:31:05,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:31:05,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:31:05,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:31:05,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:31:05,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:31:05,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:31:05,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:31:05,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:31:05,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:31:05,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:31:05,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:31:05,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:31:05,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:31:05,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:31:05,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:31:05,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:31:05,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:31:05,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:31:05,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:31:05,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:31:05,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:31:05,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:31:05,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:31:05,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:31:05,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:31:05,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:31:05,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:31:05,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:31:05,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:31:05,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:31:05,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:31:05,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:31:05,477 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-11-23 12:31:05,513 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:31:05,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:31:05,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:31:05,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:31:05,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:31:05,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:31:05,518 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:31:05,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:31:05,519 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 12:31:05,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:31:05,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:31:05,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:31:05,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:31:05,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:31:05,522 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 12:31:05,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:31:05,523 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:31:05,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:31:05,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:31:05,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:31:05,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:31:05,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:31:05,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:31:05,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:31:05,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:31:05,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:31:05,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:31:05,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:31:05,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:31:05,528 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_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06d48bd39a18f705c3286a70a8cdcced2226e3b2a16c7a38c85f5398d4bcad34 [2021-11-23 12:31:05,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:31:05,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:31:05,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:31:05,860 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:31:05,861 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:31:05,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2021-11-23 12:31:05,959 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/data/2f3d66efb/a83bf18cedf2439d95473dd48a8c9d05/FLAG0a9ee6ff8 [2021-11-23 12:31:06,515 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:31:06,516 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2021-11-23 12:31:06,531 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/data/2f3d66efb/a83bf18cedf2439d95473dd48a8c9d05/FLAG0a9ee6ff8 [2021-11-23 12:31:06,865 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/data/2f3d66efb/a83bf18cedf2439d95473dd48a8c9d05 [2021-11-23 12:31:06,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:31:06,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:31:06,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:31:06,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:31:06,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:31:06,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:31:06" (1/1) ... [2021-11-23 12:31:06,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522fd698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:06, skipping insertion in model container [2021-11-23 12:31:06,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:31:06" (1/1) ... [2021-11-23 12:31:06,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:31:06,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:31:07,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:31:07,151 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:31:07,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:31:07,201 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:31:07,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:07 WrapperNode [2021-11-23 12:31:07,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:31:07,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:31:07,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:31:07,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:31:07,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:07" (1/1) ... [2021-11-23 12:31:07,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:07" (1/1) ... [2021-11-23 12:31:07,242 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2021-11-23 12:31:07,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:31:07,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:31:07,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:31:07,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:31:07,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:07" (1/1) ... [2021-11-23 12:31:07,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:07" (1/1) ... [2021-11-23 12:31:07,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:07" (1/1) ... [2021-11-23 12:31:07,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:07" (1/1) ... [2021-11-23 12:31:07,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:07" (1/1) ... [2021-11-23 12:31:07,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:07" (1/1) ... [2021-11-23 12:31:07,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:07" (1/1) ... [2021-11-23 12:31:07,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:31:07,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:31:07,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:31:07,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:31:07,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:07" (1/1) ... [2021-11-23 12:31:07,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:31:07,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:07,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:31:07,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:31:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:31:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:31:07,453 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:31:07,455 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:31:07,614 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:31:07,629 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:31:07,630 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 12:31:07,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:31:07 BoogieIcfgContainer [2021-11-23 12:31:07,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:31:07,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:31:07,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:31:07,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:31:07,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:31:06" (1/3) ... [2021-11-23 12:31:07,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317f9a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:31:07, skipping insertion in model container [2021-11-23 12:31:07,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:07" (2/3) ... [2021-11-23 12:31:07,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317f9a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:31:07, skipping insertion in model container [2021-11-23 12:31:07,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:31:07" (3/3) ... [2021-11-23 12:31:07,649 INFO L111 eAbstractionObserver]: Analyzing ICFG GopanReps-CAV2006-Fig1a.c [2021-11-23 12:31:07,661 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:31:07,661 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-23 12:31:07,743 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:31:07,754 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 [2021-11-23 12:31:07,754 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 12:31:07,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 19 states have internal predecessors, (22), 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) [2021-11-23 12:31:07,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 12:31:07,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:07,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 12:31:07,793 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:07,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:07,799 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2021-11-23 12:31:07,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:07,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760597982] [2021-11-23 12:31:07,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:07,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:07,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:07,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:07,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760597982] [2021-11-23 12:31:07,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760597982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:31:07,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:31:07,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:31:07,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991686101] [2021-11-23 12:31:07,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:31:07,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:31:07,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:08,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:31:08,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:31:08,055 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 19 states have internal predecessors, (22), 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, 3 states have (on average 1.6666666666666667) 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) [2021-11-23 12:31:08,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:08,129 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2021-11-23 12:31:08,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:31:08,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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 [2021-11-23 12:31:08,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:08,150 INFO L225 Difference]: With dead ends: 50 [2021-11-23 12:31:08,151 INFO L226 Difference]: Without dead ends: 24 [2021-11-23 12:31:08,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:31:08,173 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:08,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 31 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:31:08,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-23 12:31:08,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2021-11-23 12:31:08,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.6) internal successors, (24), 20 states have internal predecessors, (24), 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) [2021-11-23 12:31:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-11-23 12:31:08,253 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 5 [2021-11-23 12:31:08,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:08,254 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-11-23 12:31:08,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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) [2021-11-23 12:31:08,257 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-11-23 12:31:08,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 12:31:08,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:08,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 12:31:08,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 12:31:08,259 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:08,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:08,263 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2021-11-23 12:31:08,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:08,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828626275] [2021-11-23 12:31:08,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:08,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:08,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:08,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:08,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828626275] [2021-11-23 12:31:08,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828626275] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:31:08,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:31:08,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:31:08,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966195758] [2021-11-23 12:31:08,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:31:08,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:31:08,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:08,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:31:08,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:31:08,310 INFO L87 Difference]: Start difference. First operand 21 states and 24 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) [2021-11-23 12:31:08,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:08,340 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2021-11-23 12:31:08,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:31:08,341 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 [2021-11-23 12:31:08,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:08,342 INFO L225 Difference]: With dead ends: 22 [2021-11-23 12:31:08,342 INFO L226 Difference]: Without dead ends: 21 [2021-11-23 12:31:08,343 INFO L932 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 [2021-11-23 12:31:08,345 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:08,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 20 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:31:08,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-23 12:31:08,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-23 12:31:08,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 20 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) [2021-11-23 12:31:08,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2021-11-23 12:31:08,353 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 5 [2021-11-23 12:31:08,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:08,354 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2021-11-23 12:31:08,354 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) [2021-11-23 12:31:08,354 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2021-11-23 12:31:08,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 12:31:08,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:08,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 12:31:08,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 12:31:08,356 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:08,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:08,357 INFO L85 PathProgramCache]: Analyzing trace with hash 889692391, now seen corresponding path program 1 times [2021-11-23 12:31:08,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:08,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440858337] [2021-11-23 12:31:08,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:08,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:08,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:08,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:08,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440858337] [2021-11-23 12:31:08,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440858337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:31:08,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:31:08,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:31:08,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561952739] [2021-11-23 12:31:08,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:31:08,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:31:08,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:08,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:31:08,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:31:08,418 INFO L87 Difference]: Start difference. First operand 21 states and 23 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) [2021-11-23 12:31:08,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:08,447 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2021-11-23 12:31:08,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:31:08,448 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 [2021-11-23 12:31:08,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:08,450 INFO L225 Difference]: With dead ends: 26 [2021-11-23 12:31:08,450 INFO L226 Difference]: Without dead ends: 24 [2021-11-23 12:31:08,454 INFO L932 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 [2021-11-23 12:31:08,457 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:08,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:31:08,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-23 12:31:08,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2021-11-23 12:31:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 18 states have internal predecessors, (20), 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) [2021-11-23 12:31:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-11-23 12:31:08,469 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 6 [2021-11-23 12:31:08,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:08,470 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-11-23 12:31:08,470 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) [2021-11-23 12:31:08,471 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-11-23 12:31:08,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 12:31:08,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:08,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:31:08,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 12:31:08,475 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:08,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:08,477 INFO L85 PathProgramCache]: Analyzing trace with hash 295897673, now seen corresponding path program 1 times [2021-11-23 12:31:08,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:08,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392291898] [2021-11-23 12:31:08,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:08,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:08,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:08,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:08,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392291898] [2021-11-23 12:31:08,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392291898] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:31:08,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:31:08,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:31:08,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460022669] [2021-11-23 12:31:08,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:31:08,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:31:08,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:08,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:31:08,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:31:08,546 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-23 12:31:08,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:08,586 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-11-23 12:31:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:31:08,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-11-23 12:31:08,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:08,589 INFO L225 Difference]: With dead ends: 19 [2021-11-23 12:31:08,589 INFO L226 Difference]: Without dead ends: 18 [2021-11-23 12:31:08,590 INFO L932 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 [2021-11-23 12:31:08,592 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:08,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 10 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:31:08,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-23 12:31:08,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-23 12:31:08,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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) [2021-11-23 12:31:08,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-11-23 12:31:08,610 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 8 [2021-11-23 12:31:08,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:08,610 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-11-23 12:31:08,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-23 12:31:08,612 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-11-23 12:31:08,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 12:31:08,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:08,613 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:31:08,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 12:31:08,614 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:08,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:08,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1814725954, now seen corresponding path program 1 times [2021-11-23 12:31:08,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:08,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527936520] [2021-11-23 12:31:08,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:08,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:08,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:08,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:08,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527936520] [2021-11-23 12:31:08,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527936520] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:08,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040889125] [2021-11-23 12:31:08,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:08,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:08,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:08,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:08,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 12:31:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:08,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 12:31:08,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:08,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:31:08,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:08,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040889125] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:31:08,908 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:31:08,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2021-11-23 12:31:08,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493499440] [2021-11-23 12:31:08,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:31:08,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 12:31:08,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:08,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 12:31:08,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-23 12:31:08,911 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2021-11-23 12:31:09,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:09,054 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2021-11-23 12:31:09,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 12:31:09,055 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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 11 [2021-11-23 12:31:09,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:09,056 INFO L225 Difference]: With dead ends: 44 [2021-11-23 12:31:09,056 INFO L226 Difference]: Without dead ends: 33 [2021-11-23 12:31:09,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-11-23 12:31:09,059 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 32 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:09,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 16 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:31:09,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-23 12:31:09,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 23. [2021-11-23 12:31:09,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 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) [2021-11-23 12:31:09,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-11-23 12:31:09,067 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2021-11-23 12:31:09,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:09,068 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-11-23 12:31:09,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2021-11-23 12:31:09,068 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-11-23 12:31:09,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 12:31:09,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:09,070 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1] [2021-11-23 12:31:09,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:09,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:09,296 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:09,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:09,296 INFO L85 PathProgramCache]: Analyzing trace with hash 222881243, now seen corresponding path program 1 times [2021-11-23 12:31:09,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:09,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521613113] [2021-11-23 12:31:09,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:09,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:09,418 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:09,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:09,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521613113] [2021-11-23 12:31:09,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521613113] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:09,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632932224] [2021-11-23 12:31:09,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:09,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:09,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:09,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:09,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 12:31:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:09,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 12:31:09,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:09,592 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:09,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:31:09,706 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:09,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632932224] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:31:09,707 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:31:09,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-23 12:31:09,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788783357] [2021-11-23 12:31:09,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:31:09,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 12:31:09,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:09,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 12:31:09,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-23 12:31:09,715 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 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) [2021-11-23 12:31:09,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:09,843 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2021-11-23 12:31:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 12:31:09,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 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 17 [2021-11-23 12:31:09,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:09,846 INFO L225 Difference]: With dead ends: 77 [2021-11-23 12:31:09,846 INFO L226 Difference]: Without dead ends: 76 [2021-11-23 12:31:09,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-23 12:31:09,848 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 35 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:09,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 48 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:31:09,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-23 12:31:09,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 66. [2021-11-23 12:31:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 64 states have (on average 1.234375) internal successors, (79), 65 states have internal predecessors, (79), 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) [2021-11-23 12:31:09,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 79 transitions. [2021-11-23 12:31:09,863 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 79 transitions. Word has length 17 [2021-11-23 12:31:09,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:09,863 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 79 transitions. [2021-11-23 12:31:09,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 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) [2021-11-23 12:31:09,864 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 79 transitions. [2021-11-23 12:31:09,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 12:31:09,865 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:09,865 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-23 12:31:09,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:10,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:10,087 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:10,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:10,088 INFO L85 PathProgramCache]: Analyzing trace with hash -559304034, now seen corresponding path program 1 times [2021-11-23 12:31:10,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:10,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146356016] [2021-11-23 12:31:10,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:10,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:10,137 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 12:31:10,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:10,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146356016] [2021-11-23 12:31:10,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146356016] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:10,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906137853] [2021-11-23 12:31:10,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:10,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:10,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:10,145 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:10,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 12:31:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:10,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 12:31:10,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:10,269 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:10,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:31:10,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:10,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906137853] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:31:10,341 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:31:10,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 9 [2021-11-23 12:31:10,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625196539] [2021-11-23 12:31:10,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:31:10,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 12:31:10,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:10,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 12:31:10,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-23 12:31:10,344 INFO L87 Difference]: Start difference. First operand 66 states and 79 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 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) [2021-11-23 12:31:10,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:10,438 INFO L93 Difference]: Finished difference Result 156 states and 197 transitions. [2021-11-23 12:31:10,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 12:31:10,440 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 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 19 [2021-11-23 12:31:10,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:10,447 INFO L225 Difference]: With dead ends: 156 [2021-11-23 12:31:10,447 INFO L226 Difference]: Without dead ends: 103 [2021-11-23 12:31:10,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-23 12:31:10,449 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 74 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:10,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 40 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:31:10,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-23 12:31:10,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-11-23 12:31:10,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 101 states have (on average 1.1485148514851484) internal successors, (116), 102 states have internal predecessors, (116), 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) [2021-11-23 12:31:10,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2021-11-23 12:31:10,471 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 116 transitions. Word has length 19 [2021-11-23 12:31:10,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:10,472 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 116 transitions. [2021-11-23 12:31:10,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 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) [2021-11-23 12:31:10,472 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2021-11-23 12:31:10,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 12:31:10,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:10,474 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1] [2021-11-23 12:31:10,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:10,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:10,695 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:10,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:10,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1014921281, now seen corresponding path program 2 times [2021-11-23 12:31:10,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:10,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449369486] [2021-11-23 12:31:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:10,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:10,852 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:10,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:10,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449369486] [2021-11-23 12:31:10,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449369486] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:10,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565019942] [2021-11-23 12:31:10,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 12:31:10,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:10,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:10,863 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:10,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 12:31:10,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 12:31:10,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:31:10,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 12:31:10,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:11,088 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:11,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:31:11,313 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:11,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565019942] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:31:11,314 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:31:11,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2021-11-23 12:31:11,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289206564] [2021-11-23 12:31:11,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:31:11,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-23 12:31:11,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:11,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-23 12:31:11,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-23 12:31:11,326 INFO L87 Difference]: Start difference. First operand 103 states and 116 transitions. Second operand has 16 states, 15 states have (on average 5.4) internal successors, (81), 16 states have internal predecessors, (81), 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) [2021-11-23 12:31:11,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:11,533 INFO L93 Difference]: Finished difference Result 552 states and 645 transitions. [2021-11-23 12:31:11,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 12:31:11,534 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.4) internal successors, (81), 16 states have internal predecessors, (81), 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 41 [2021-11-23 12:31:11,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:11,544 INFO L225 Difference]: With dead ends: 552 [2021-11-23 12:31:11,545 INFO L226 Difference]: Without dead ends: 551 [2021-11-23 12:31:11,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-23 12:31:11,548 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 88 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:11,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 83 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:31:11,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2021-11-23 12:31:11,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 364. [2021-11-23 12:31:11,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 362 states have (on average 1.1657458563535912) internal successors, (422), 363 states have internal predecessors, (422), 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) [2021-11-23 12:31:11,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 422 transitions. [2021-11-23 12:31:11,649 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 422 transitions. Word has length 41 [2021-11-23 12:31:11,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:11,650 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 422 transitions. [2021-11-23 12:31:11,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.4) internal successors, (81), 16 states have internal predecessors, (81), 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) [2021-11-23 12:31:11,651 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 422 transitions. [2021-11-23 12:31:11,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-23 12:31:11,663 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:11,663 INFO L514 BasicCegarLoop]: trace histogram [9, 8, 8, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2021-11-23 12:31:11,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:11,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:11,879 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:11,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:11,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1694769756, now seen corresponding path program 2 times [2021-11-23 12:31:11,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:11,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106777270] [2021-11-23 12:31:11,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:11,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:12,029 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 76 proven. 44 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-23 12:31:12,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:12,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106777270] [2021-11-23 12:31:12,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106777270] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:12,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299088112] [2021-11-23 12:31:12,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 12:31:12,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:12,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:12,039 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:12,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 12:31:12,088 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 12:31:12,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:31:12,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 12:31:12,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:12,219 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 76 proven. 44 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-23 12:31:12,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:31:12,401 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 76 proven. 44 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-23 12:31:12,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299088112] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:31:12,402 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:31:12,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2021-11-23 12:31:12,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726053238] [2021-11-23 12:31:12,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:31:12,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 12:31:12,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:12,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 12:31:12,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-23 12:31:12,406 INFO L87 Difference]: Start difference. First operand 364 states and 422 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 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) [2021-11-23 12:31:12,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:12,491 INFO L93 Difference]: Finished difference Result 586 states and 681 transitions. [2021-11-23 12:31:12,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 12:31:12,492 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 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 55 [2021-11-23 12:31:12,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:12,494 INFO L225 Difference]: With dead ends: 586 [2021-11-23 12:31:12,495 INFO L226 Difference]: Without dead ends: 244 [2021-11-23 12:31:12,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-23 12:31:12,498 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 41 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:12,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 45 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:31:12,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-23 12:31:12,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2021-11-23 12:31:12,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 242 states have (on average 1.1363636363636365) internal successors, (275), 243 states have internal predecessors, (275), 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) [2021-11-23 12:31:12,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 275 transitions. [2021-11-23 12:31:12,517 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 275 transitions. Word has length 55 [2021-11-23 12:31:12,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:12,518 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 275 transitions. [2021-11-23 12:31:12,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 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) [2021-11-23 12:31:12,518 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 275 transitions. [2021-11-23 12:31:12,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-23 12:31:12,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:12,520 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1] [2021-11-23 12:31:12,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:12,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-23 12:31:12,741 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:12,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:12,741 INFO L85 PathProgramCache]: Analyzing trace with hash -204765305, now seen corresponding path program 3 times [2021-11-23 12:31:12,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:12,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394483689] [2021-11-23 12:31:12,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:12,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:13,070 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:13,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:13,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394483689] [2021-11-23 12:31:13,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394483689] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:13,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745797838] [2021-11-23 12:31:13,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 12:31:13,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:13,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:13,073 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:13,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 12:31:13,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-11-23 12:31:13,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:31:13,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 12:31:13,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:13,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:31:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:14,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745797838] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:31:14,008 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:31:14,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2021-11-23 12:31:14,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453331550] [2021-11-23 12:31:14,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:31:14,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-23 12:31:14,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:14,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-23 12:31:14,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-23 12:31:14,017 INFO L87 Difference]: Start difference. First operand 244 states and 275 transitions. Second operand has 32 states, 31 states have (on average 5.709677419354839) internal successors, (177), 32 states have internal predecessors, (177), 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) [2021-11-23 12:31:14,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:14,396 INFO L93 Difference]: Finished difference Result 2183 states and 2554 transitions. [2021-11-23 12:31:14,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-23 12:31:14,397 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.709677419354839) internal successors, (177), 32 states have internal predecessors, (177), 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 89 [2021-11-23 12:31:14,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:14,413 INFO L225 Difference]: With dead ends: 2183 [2021-11-23 12:31:14,413 INFO L226 Difference]: Without dead ends: 2182 [2021-11-23 12:31:14,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-23 12:31:14,416 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 280 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:14,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 183 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 12:31:14,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2021-11-23 12:31:14,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 928. [2021-11-23 12:31:14,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 926 states have (on average 1.1684665226781858) internal successors, (1082), 927 states have internal predecessors, (1082), 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) [2021-11-23 12:31:14,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1082 transitions. [2021-11-23 12:31:14,498 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1082 transitions. Word has length 89 [2021-11-23 12:31:14,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:14,499 INFO L470 AbstractCegarLoop]: Abstraction has 928 states and 1082 transitions. [2021-11-23 12:31:14,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.709677419354839) internal successors, (177), 32 states have internal predecessors, (177), 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) [2021-11-23 12:31:14,500 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1082 transitions. [2021-11-23 12:31:14,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-23 12:31:14,502 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:14,502 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 10, 10, 10, 5, 5, 5, 1, 1, 1] [2021-11-23 12:31:14,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:14,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 12:31:14,719 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:14,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:14,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1775172658, now seen corresponding path program 3 times [2021-11-23 12:31:14,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:14,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905746447] [2021-11-23 12:31:14,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:14,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:14,883 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 178 proven. 290 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-23 12:31:14,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:14,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905746447] [2021-11-23 12:31:14,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905746447] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:14,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107178991] [2021-11-23 12:31:14,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 12:31:14,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:14,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:14,886 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:14,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 12:31:14,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-11-23 12:31:14,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:31:14,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 12:31:14,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:15,265 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 244 proven. 88 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-23 12:31:15,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:31:15,592 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 244 proven. 88 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-11-23 12:31:15,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107178991] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:31:15,592 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:31:15,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 27 [2021-11-23 12:31:15,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898832857] [2021-11-23 12:31:15,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:31:15,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-23 12:31:15,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:15,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-23 12:31:15,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-23 12:31:15,595 INFO L87 Difference]: Start difference. First operand 928 states and 1082 transitions. Second operand has 27 states, 27 states have (on average 5.851851851851852) internal successors, (158), 27 states have internal predecessors, (158), 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) [2021-11-23 12:31:15,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:15,833 INFO L93 Difference]: Finished difference Result 2458 states and 2984 transitions. [2021-11-23 12:31:15,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-23 12:31:15,834 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.851851851851852) internal successors, (158), 27 states have internal predecessors, (158), 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 91 [2021-11-23 12:31:15,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:15,848 INFO L225 Difference]: With dead ends: 2458 [2021-11-23 12:31:15,849 INFO L226 Difference]: Without dead ends: 1588 [2021-11-23 12:31:15,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-23 12:31:15,854 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 171 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:15,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 96 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:31:15,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2021-11-23 12:31:15,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1588. [2021-11-23 12:31:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1586 states have (on average 1.16078184110971) internal successors, (1841), 1587 states have internal predecessors, (1841), 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) [2021-11-23 12:31:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 1841 transitions. [2021-11-23 12:31:15,984 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 1841 transitions. Word has length 91 [2021-11-23 12:31:15,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:15,986 INFO L470 AbstractCegarLoop]: Abstraction has 1588 states and 1841 transitions. [2021-11-23 12:31:15,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.851851851851852) internal successors, (158), 27 states have internal predecessors, (158), 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) [2021-11-23 12:31:15,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 1841 transitions. [2021-11-23 12:31:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-23 12:31:15,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:16,000 INFO L514 BasicCegarLoop]: trace histogram [26, 25, 25, 14, 14, 14, 12, 12, 12, 1, 1, 1] [2021-11-23 12:31:16,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:16,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:16,214 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:16,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:16,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1356559473, now seen corresponding path program 4 times [2021-11-23 12:31:16,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:16,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071282731] [2021-11-23 12:31:16,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:16,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:16,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 662 proven. 420 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-23 12:31:16,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:16,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071282731] [2021-11-23 12:31:16,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071282731] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:16,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265554698] [2021-11-23 12:31:16,436 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 12:31:16,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:16,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:16,438 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:16,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 12:31:16,517 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 12:31:16,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:31:16,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-23 12:31:16,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:16,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 662 proven. 420 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-23 12:31:16,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:31:17,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 662 proven. 420 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-23 12:31:17,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265554698] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:31:17,506 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:31:17,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 28 [2021-11-23 12:31:17,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829587949] [2021-11-23 12:31:17,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:31:17,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-23 12:31:17,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:17,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-23 12:31:17,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-23 12:31:17,509 INFO L87 Difference]: Start difference. First operand 1588 states and 1841 transitions. Second operand has 28 states, 28 states have (on average 5.642857142857143) internal successors, (158), 28 states have internal predecessors, (158), 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) [2021-11-23 12:31:17,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:17,695 INFO L93 Difference]: Finished difference Result 2473 states and 2873 transitions. [2021-11-23 12:31:17,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-23 12:31:17,696 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.642857142857143) internal successors, (158), 28 states have internal predecessors, (158), 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 157 [2021-11-23 12:31:17,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:17,703 INFO L225 Difference]: With dead ends: 2473 [2021-11-23 12:31:17,703 INFO L226 Difference]: Without dead ends: 955 [2021-11-23 12:31:17,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-23 12:31:17,707 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 157 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:17,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 100 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:31:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2021-11-23 12:31:17,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 955. [2021-11-23 12:31:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 953 states have (on average 1.1416579223504721) internal successors, (1088), 954 states have internal predecessors, (1088), 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) [2021-11-23 12:31:17,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1088 transitions. [2021-11-23 12:31:17,765 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1088 transitions. Word has length 157 [2021-11-23 12:31:17,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:17,765 INFO L470 AbstractCegarLoop]: Abstraction has 955 states and 1088 transitions. [2021-11-23 12:31:17,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.642857142857143) internal successors, (158), 28 states have internal predecessors, (158), 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) [2021-11-23 12:31:17,766 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1088 transitions. [2021-11-23 12:31:17,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-23 12:31:17,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:17,769 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 30, 30, 1, 1, 1] [2021-11-23 12:31:17,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:17,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-23 12:31:17,986 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:17,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:17,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1976404201, now seen corresponding path program 4 times [2021-11-23 12:31:17,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:17,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026623926] [2021-11-23 12:31:17,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:17,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:18,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:18,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:18,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026623926] [2021-11-23 12:31:18,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026623926] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:18,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161463580] [2021-11-23 12:31:18,764 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 12:31:18,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:18,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:18,765 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:18,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 12:31:18,844 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 12:31:18,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:31:18,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 12:31:18,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:19,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:19,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:31:21,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:21,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161463580] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:31:21,264 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:31:21,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2021-11-23 12:31:21,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076410191] [2021-11-23 12:31:21,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:31:21,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-11-23 12:31:21,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:21,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-11-23 12:31:21,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-23 12:31:21,270 INFO L87 Difference]: Start difference. First operand 955 states and 1088 transitions. Second operand has 64 states, 63 states have (on average 5.857142857142857) internal successors, (369), 64 states have internal predecessors, (369), 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) [2021-11-23 12:31:22,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:22,476 INFO L93 Difference]: Finished difference Result 15963 states and 18627 transitions. [2021-11-23 12:31:22,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-23 12:31:22,477 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 5.857142857142857) internal successors, (369), 64 states have internal predecessors, (369), 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 185 [2021-11-23 12:31:22,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:22,585 INFO L225 Difference]: With dead ends: 15963 [2021-11-23 12:31:22,585 INFO L226 Difference]: Without dead ends: 15962 [2021-11-23 12:31:22,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-23 12:31:22,598 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 483 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:22,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 408 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 12:31:22,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15962 states. [2021-11-23 12:31:23,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15962 to 4456. [2021-11-23 12:31:23,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4456 states, 4454 states have (on average 1.1650202065559048) internal successors, (5189), 4455 states have internal predecessors, (5189), 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) [2021-11-23 12:31:23,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4456 states to 4456 states and 5189 transitions. [2021-11-23 12:31:23,316 INFO L78 Accepts]: Start accepts. Automaton has 4456 states and 5189 transitions. Word has length 185 [2021-11-23 12:31:23,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:23,316 INFO L470 AbstractCegarLoop]: Abstraction has 4456 states and 5189 transitions. [2021-11-23 12:31:23,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 5.857142857142857) internal successors, (369), 64 states have internal predecessors, (369), 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) [2021-11-23 12:31:23,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4456 states and 5189 transitions. [2021-11-23 12:31:23,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-23 12:31:23,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:23,324 INFO L514 BasicCegarLoop]: trace histogram [40, 39, 39, 26, 26, 26, 14, 14, 14, 1, 1, 1] [2021-11-23 12:31:23,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:23,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:23,539 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:23,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:23,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1546498899, now seen corresponding path program 5 times [2021-11-23 12:31:23,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:23,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101115129] [2021-11-23 12:31:23,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:23,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:24,169 INFO L134 CoverageAnalysis]: Checked inductivity of 3913 backedges. 1404 proven. 2002 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-23 12:31:24,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:24,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101115129] [2021-11-23 12:31:24,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101115129] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:24,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373897016] [2021-11-23 12:31:24,170 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 12:31:24,170 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:24,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:24,172 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:24,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 12:31:24,306 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 28 check-sat command(s) [2021-11-23 12:31:24,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:31:24,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 12:31:24,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:24,961 INFO L134 CoverageAnalysis]: Checked inductivity of 3913 backedges. 1404 proven. 2002 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-23 12:31:24,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:31:26,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3913 backedges. 1404 proven. 2002 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-23 12:31:26,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373897016] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:31:26,489 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:31:26,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 53 [2021-11-23 12:31:26,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767157931] [2021-11-23 12:31:26,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:31:26,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-23 12:31:26,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:26,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-23 12:31:26,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-23 12:31:26,495 INFO L87 Difference]: Start difference. First operand 4456 states and 5189 transitions. Second operand has 53 states, 53 states have (on average 5.90566037735849) internal successors, (313), 53 states have internal predecessors, (313), 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) [2021-11-23 12:31:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:26,861 INFO L93 Difference]: Finished difference Result 6799 states and 7930 transitions. [2021-11-23 12:31:26,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-23 12:31:26,862 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 5.90566037735849) internal successors, (313), 53 states have internal predecessors, (313), 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 241 [2021-11-23 12:31:26,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:26,878 INFO L225 Difference]: With dead ends: 6799 [2021-11-23 12:31:26,878 INFO L226 Difference]: Without dead ends: 2497 [2021-11-23 12:31:26,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-23 12:31:26,886 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 205 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:26,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 188 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 12:31:26,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2497 states. [2021-11-23 12:31:26,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2497 to 2497. [2021-11-23 12:31:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 2495 states have (on average 1.1503006012024048) internal successors, (2870), 2496 states have internal predecessors, (2870), 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) [2021-11-23 12:31:26,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 2870 transitions. [2021-11-23 12:31:26,995 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 2870 transitions. Word has length 241 [2021-11-23 12:31:26,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:26,996 INFO L470 AbstractCegarLoop]: Abstraction has 2497 states and 2870 transitions. [2021-11-23 12:31:26,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 5.90566037735849) internal successors, (313), 53 states have internal predecessors, (313), 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) [2021-11-23 12:31:26,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 2870 transitions. [2021-11-23 12:31:27,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-11-23 12:31:27,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:27,007 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 62, 62, 62, 62, 1, 1, 1] [2021-11-23 12:31:27,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:27,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:27,223 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:27,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:27,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1640764983, now seen corresponding path program 5 times [2021-11-23 12:31:27,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:27,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697549714] [2021-11-23 12:31:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:27,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:29,382 INFO L134 CoverageAnalysis]: Checked inductivity of 11532 backedges. 0 proven. 11532 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:29,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:29,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697549714] [2021-11-23 12:31:29,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697549714] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:29,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046348252] [2021-11-23 12:31:29,383 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-23 12:31:29,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:29,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:29,386 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:29,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 12:31:29,618 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2021-11-23 12:31:29,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:31:29,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-23 12:31:29,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:33,294 INFO L134 CoverageAnalysis]: Checked inductivity of 11532 backedges. 11191 proven. 0 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2021-11-23 12:31:33,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 12:31:33,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046348252] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:31:33,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 12:31:33,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [64] total 117 [2021-11-23 12:31:33,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547363678] [2021-11-23 12:31:33,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:31:33,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-11-23 12:31:33,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:33,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-11-23 12:31:33,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3510, Invalid=10062, Unknown=0, NotChecked=0, Total=13572 [2021-11-23 12:31:33,303 INFO L87 Difference]: Start difference. First operand 2497 states and 2870 transitions. Second operand has 54 states, 54 states have (on average 5.87037037037037) internal successors, (317), 54 states have internal predecessors, (317), 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) [2021-11-23 12:31:33,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:33,835 INFO L93 Difference]: Finished difference Result 2624 states and 3024 transitions. [2021-11-23 12:31:33,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-23 12:31:33,837 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 5.87037037037037) internal successors, (317), 54 states have internal predecessors, (317), 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 377 [2021-11-23 12:31:33,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:33,840 INFO L225 Difference]: With dead ends: 2624 [2021-11-23 12:31:33,841 INFO L226 Difference]: Without dead ends: 431 [2021-11-23 12:31:33,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3224 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=3510, Invalid=10062, Unknown=0, NotChecked=0, Total=13572 [2021-11-23 12:31:33,853 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 25 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:33,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 642 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 12:31:33,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2021-11-23 12:31:33,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 392. [2021-11-23 12:31:33,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 391 states have (on average 1.0025575447570332) internal successors, (392), 391 states have internal predecessors, (392), 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) [2021-11-23 12:31:33,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 392 transitions. [2021-11-23 12:31:33,870 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 392 transitions. Word has length 377 [2021-11-23 12:31:33,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:33,871 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 392 transitions. [2021-11-23 12:31:33,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 5.87037037037037) internal successors, (317), 54 states have internal predecessors, (317), 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) [2021-11-23 12:31:33,872 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 392 transitions. [2021-11-23 12:31:33,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2021-11-23 12:31:33,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:33,881 INFO L514 BasicCegarLoop]: trace histogram [65, 64, 64, 51, 51, 51, 14, 14, 14, 1, 1, 1] [2021-11-23 12:31:33,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:34,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:34,098 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:34,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:34,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2025652382, now seen corresponding path program 6 times [2021-11-23 12:31:34,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:34,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890321880] [2021-11-23 12:31:34,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:34,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:36,449 INFO L134 CoverageAnalysis]: Checked inductivity of 10988 backedges. 0 proven. 10988 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:36,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:36,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890321880] [2021-11-23 12:31:36,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890321880] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:36,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263091823] [2021-11-23 12:31:36,450 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-23 12:31:36,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:36,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:36,453 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:36,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-23 12:31:36,559 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 29 check-sat command(s) [2021-11-23 12:31:36,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:31:36,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 12:31:36,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 10988 backedges. 2978 proven. 560 refuted. 0 times theorem prover too weak. 7450 trivial. 0 not checked. [2021-11-23 12:31:37,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:31:38,478 INFO L134 CoverageAnalysis]: Checked inductivity of 10988 backedges. 2978 proven. 560 refuted. 0 times theorem prover too weak. 7450 trivial. 0 not checked. [2021-11-23 12:31:38,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263091823] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:31:38,478 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:31:38,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 16, 16] total 81 [2021-11-23 12:31:38,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413687055] [2021-11-23 12:31:38,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:31:38,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2021-11-23 12:31:38,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:38,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-11-23 12:31:38,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2021-11-23 12:31:38,484 INFO L87 Difference]: Start difference. First operand 392 states and 392 transitions. Second operand has 82 states, 81 states have (on average 6.012345679012346) internal successors, (487), 82 states have internal predecessors, (487), 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) [2021-11-23 12:31:39,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:39,223 INFO L93 Difference]: Finished difference Result 489 states and 504 transitions. [2021-11-23 12:31:39,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-11-23 12:31:39,224 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 81 states have (on average 6.012345679012346) internal successors, (487), 82 states have internal predecessors, (487), 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 391 [2021-11-23 12:31:39,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:39,228 INFO L225 Difference]: With dead ends: 489 [2021-11-23 12:31:39,228 INFO L226 Difference]: Without dead ends: 488 [2021-11-23 12:31:39,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 766 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2021-11-23 12:31:39,232 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 803 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:39,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [803 Valid, 265 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 12:31:39,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2021-11-23 12:31:39,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2021-11-23 12:31:39,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 487 states have (on average 1.002053388090349) internal successors, (488), 487 states have internal predecessors, (488), 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) [2021-11-23 12:31:39,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 488 transitions. [2021-11-23 12:31:39,252 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 488 transitions. Word has length 391 [2021-11-23 12:31:39,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:39,253 INFO L470 AbstractCegarLoop]: Abstraction has 488 states and 488 transitions. [2021-11-23 12:31:39,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 81 states have (on average 6.012345679012346) internal successors, (487), 82 states have internal predecessors, (487), 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) [2021-11-23 12:31:39,254 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 488 transitions. [2021-11-23 12:31:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2021-11-23 12:31:39,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:39,266 INFO L514 BasicCegarLoop]: trace histogram [81, 80, 80, 51, 51, 51, 30, 30, 30, 1, 1, 1] [2021-11-23 12:31:39,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:39,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-23 12:31:39,491 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:39,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1235249202, now seen corresponding path program 7 times [2021-11-23 12:31:39,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:39,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002445093] [2021-11-23 12:31:39,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:39,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:42,668 INFO L134 CoverageAnalysis]: Checked inductivity of 16300 backedges. 0 proven. 16300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:42,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:31:42,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002445093] [2021-11-23 12:31:42,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002445093] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:31:42,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181668423] [2021-11-23 12:31:42,669 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 12:31:42,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:31:42,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:31:42,685 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:31:42,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-23 12:31:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:31:42,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 82 conjunts are in the unsatisfiable core [2021-11-23 12:31:42,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:31:44,158 INFO L134 CoverageAnalysis]: Checked inductivity of 16300 backedges. 0 proven. 16300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:44,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:31:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 16300 backedges. 0 proven. 16300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:31:52,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181668423] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:31:52,829 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:31:52,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82, 82] total 163 [2021-11-23 12:31:52,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605645325] [2021-11-23 12:31:52,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:31:52,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 164 states [2021-11-23 12:31:52,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:31:52,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2021-11-23 12:31:52,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13366, Invalid=13366, Unknown=0, NotChecked=0, Total=26732 [2021-11-23 12:31:52,842 INFO L87 Difference]: Start difference. First operand 488 states and 488 transitions. Second operand has 164 states, 163 states have (on average 5.969325153374233) internal successors, (973), 164 states have internal predecessors, (973), 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) [2021-11-23 12:31:55,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:31:55,503 INFO L93 Difference]: Finished difference Result 981 states and 1062 transitions. [2021-11-23 12:31:55,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2021-11-23 12:31:55,504 INFO L78 Accepts]: Start accepts. Automaton has has 164 states, 163 states have (on average 5.969325153374233) internal successors, (973), 164 states have internal predecessors, (973), 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 487 [2021-11-23 12:31:55,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:31:55,511 INFO L225 Difference]: With dead ends: 981 [2021-11-23 12:31:55,512 INFO L226 Difference]: Without dead ends: 980 [2021-11-23 12:31:55,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1054 GetRequests, 892 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=13366, Invalid=13366, Unknown=0, NotChecked=0, Total=26732 [2021-11-23 12:31:55,517 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 1824 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 12:31:55,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1824 Valid, 506 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 12:31:55,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2021-11-23 12:31:55,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2021-11-23 12:31:55,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 979 states have (on average 1.0010214504596526) internal successors, (980), 979 states have internal predecessors, (980), 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) [2021-11-23 12:31:55,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 980 transitions. [2021-11-23 12:31:55,554 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 980 transitions. Word has length 487 [2021-11-23 12:31:55,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:31:55,556 INFO L470 AbstractCegarLoop]: Abstraction has 980 states and 980 transitions. [2021-11-23 12:31:55,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 164 states, 163 states have (on average 5.969325153374233) internal successors, (973), 164 states have internal predecessors, (973), 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) [2021-11-23 12:31:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 980 transitions. [2021-11-23 12:31:55,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2021-11-23 12:31:55,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:31:55,597 INFO L514 BasicCegarLoop]: trace histogram [163, 162, 162, 112, 112, 112, 51, 51, 51, 1, 1, 1] [2021-11-23 12:31:55,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-23 12:31:55,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-23 12:31:55,811 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 12:31:55,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:31:55,812 INFO L85 PathProgramCache]: Analyzing trace with hash 803429924, now seen corresponding path program 8 times [2021-11-23 12:31:55,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:31:55,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912522776] [2021-11-23 12:31:55,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:31:55,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:31:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:32:07,299 INFO L134 CoverageAnalysis]: Checked inductivity of 67632 backedges. 0 proven. 67632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:32:07,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:32:07,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912522776] [2021-11-23 12:32:07,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912522776] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 12:32:07,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38812701] [2021-11-23 12:32:07,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 12:32:07,301 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:32:07,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:32:07,319 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:32:07,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-23 12:32:07,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 12:32:07,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 12:32:07,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 1634 conjuncts, 105 conjunts are in the unsatisfiable core [2021-11-23 12:32:07,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:32:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 67632 backedges. 44176 proven. 12752 refuted. 0 times theorem prover too weak. 10704 trivial. 0 not checked. [2021-11-23 12:32:14,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:32:16,275 INFO L134 CoverageAnalysis]: Checked inductivity of 67632 backedges. 44176 proven. 12752 refuted. 0 times theorem prover too weak. 10704 trivial. 0 not checked. [2021-11-23 12:32:16,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38812701] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 12:32:16,276 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 12:32:16,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [164, 55, 55] total 218 [2021-11-23 12:32:16,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744094249] [2021-11-23 12:32:16,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 12:32:16,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 218 states [2021-11-23 12:32:16,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:32:16,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 218 interpolants. [2021-11-23 12:32:16,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15014, Invalid=32292, Unknown=0, NotChecked=0, Total=47306 [2021-11-23 12:32:16,329 INFO L87 Difference]: Start difference. First operand 980 states and 980 transitions. Second operand has 218 states, 218 states have (on average 6.674311926605505) internal successors, (1455), 218 states have internal predecessors, (1455), 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) [2021-11-23 12:32:32,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:32:32,681 INFO L93 Difference]: Finished difference Result 980 states and 980 transitions. [2021-11-23 12:32:32,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2021-11-23 12:32:32,682 INFO L78 Accepts]: Start accepts. Automaton has has 218 states, 218 states have (on average 6.674311926605505) internal successors, (1455), 218 states have internal predecessors, (1455), 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 979 [2021-11-23 12:32:32,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:32:32,690 INFO L225 Difference]: With dead ends: 980 [2021-11-23 12:32:32,691 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 12:32:32,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2327 GetRequests, 1903 SyntacticMatches, 1 SemanticMatches, 423 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30423 ImplicationChecksByTransitivity, 27.3s TimeCoverageRelationStatistics Valid=54683, Invalid=125517, Unknown=0, NotChecked=0, Total=180200 [2021-11-23 12:32:32,721 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 511 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2737 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 2949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 2737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 12:32:32,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [511 Valid, 10 Invalid, 2949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 2737 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-23 12:32:32,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 12:32:32,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 12:32:32,723 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) [2021-11-23 12:32:32,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 12:32:32,723 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 979 [2021-11-23 12:32:32,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:32:32,724 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 12:32:32,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 218 states, 218 states have (on average 6.674311926605505) internal successors, (1455), 218 states have internal predecessors, (1455), 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) [2021-11-23 12:32:32,725 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 12:32:32,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 12:32:32,730 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2021-11-23 12:32:32,731 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2021-11-23 12:32:32,731 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2021-11-23 12:32:32,732 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2021-11-23 12:32:32,732 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2021-11-23 12:32:32,732 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2021-11-23 12:32:32,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-23 12:32:32,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-23 12:32:32,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 12:32:39,448 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-11-23 12:32:39,448 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 12:32:39,448 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-11-23 12:32:39,448 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-23 12:32:39,448 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 23) no Hoare annotation was computed. [2021-11-23 12:32:39,448 INFO L858 garLoopResultBuilder]: For program point L19-2(lines 19 23) no Hoare annotation was computed. [2021-11-23 12:32:39,449 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 12:32:39,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-11-23 12:32:39,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-11-23 12:32:39,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 12:32:39,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-23 12:32:39,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 12:32:39,449 INFO L861 garLoopResultBuilder]: At program point L26(lines 14 27) the Hoare annotation is: true [2021-11-23 12:32:39,449 INFO L858 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-11-23 12:32:39,450 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-11-23 12:32:39,450 INFO L858 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-11-23 12:32:39,450 INFO L858 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-11-23 12:32:39,450 INFO L858 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-11-23 12:32:39,451 INFO L854 garLoopResultBuilder]: At program point L18-2(lines 18 25) the Hoare annotation is: (let ((.cse7 (<= |ULTIMATE.start_main_~y~0#1| 4)) (.cse5 (<= |ULTIMATE.start_main_~y~0#1| 9)) (.cse9 (<= |ULTIMATE.start_main_~y~0#1| 44)) (.cse19 (<= |ULTIMATE.start_main_~y~0#1| 25)) (.cse4 (<= |ULTIMATE.start_main_~y~0#1| 20)) (.cse14 (<= |ULTIMATE.start_main_~y~0#1| 42)) (.cse17 (<= |ULTIMATE.start_main_~y~0#1| 29)) (.cse8 (<= |ULTIMATE.start_main_~y~0#1| 31)) (.cse27 (<= |ULTIMATE.start_main_~y~0#1| 23)) (.cse11 (<= |ULTIMATE.start_main_~y~0#1| 27)) (.cse24 (<= |ULTIMATE.start_main_~y~0#1| 49)) (.cse34 (<= |ULTIMATE.start_main_~y~0#1| 6)) (.cse15 (<= |ULTIMATE.start_main_~y~0#1| 13)) (.cse23 (<= |ULTIMATE.start_main_~y~0#1| 45)) (.cse33 (<= |ULTIMATE.start_main_~y~0#1| 12)) (.cse29 (<= |ULTIMATE.start_main_~y~0#1| 17)) (.cse41 (<= |ULTIMATE.start_main_~y~0#1| 14)) (.cse16 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse40 (<= |ULTIMATE.start_main_~y~0#1| 30)) (.cse42 (<= |ULTIMATE.start_main_~y~0#1| 40)) (.cse25 (<= |ULTIMATE.start_main_~y~0#1| 11)) (.cse44 (<= |ULTIMATE.start_main_~y~0#1| 47)) (.cse38 (<= |ULTIMATE.start_main_~y~0#1| 46)) (.cse18 (<= |ULTIMATE.start_main_~y~0#1| 3)) (.cse26 (<= |ULTIMATE.start_main_~y~0#1| 7)) (.cse49 (<= |ULTIMATE.start_main_~y~0#1| 24)) (.cse43 (<= |ULTIMATE.start_main_~y~0#1| 21)) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 1)) (.cse12 (<= |ULTIMATE.start_main_~y~0#1| 43)) (.cse20 (<= |ULTIMATE.start_main_~y~0#1| 26)) (.cse36 (<= |ULTIMATE.start_main_~y~0#1| 19)) (.cse47 (<= |ULTIMATE.start_main_~y~0#1| 10)) (.cse50 (<= |ULTIMATE.start_main_~y~0#1| 0)) (.cse37 (<= |ULTIMATE.start_main_~y~0#1| 18)) (.cse28 (<= |ULTIMATE.start_main_~y~0#1| 48)) (.cse1 (<= |ULTIMATE.start_main_~y~0#1| 50)) (.cse48 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse51 (<= |ULTIMATE.start_main_~y~0#1| 35)) (.cse30 (<= |ULTIMATE.start_main_~y~0#1| 8)) (.cse13 (<= |ULTIMATE.start_main_~y~0#1| 22)) (.cse31 (<= |ULTIMATE.start_main_~y~0#1| 36)) (.cse52 (<= |ULTIMATE.start_main_~y~0#1| 34)) (.cse22 (<= |ULTIMATE.start_main_~y~0#1| 28)) (.cse32 (<= |ULTIMATE.start_main_~y~0#1| 38)) (.cse6 (<= |ULTIMATE.start_main_~y~0#1| 32)) (.cse3 (<= |ULTIMATE.start_main_~y~0#1| 2147483623)) (.cse45 (<= |ULTIMATE.start_main_~y~0#1| 16)) (.cse39 (<= |ULTIMATE.start_main_~y~0#1| 15)) (.cse35 (<= |ULTIMATE.start_main_~y~0#1| 39)) (.cse46 (<= |ULTIMATE.start_main_~y~0#1| 33)) (.cse0 (<= 51 |ULTIMATE.start_main_~x~0#1|)) (.cse21 (<= |ULTIMATE.start_main_~y~0#1| 41)) (.cse10 (<= |ULTIMATE.start_main_~y~0#1| 37))) (or (and .cse0 (<= |ULTIMATE.start_main_~x~0#1| 52) .cse1) (and (<= |ULTIMATE.start_main_~x~0#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) .cse2) (and .cse3 (<= |ULTIMATE.start_main_~x~0#1| 82) .cse4 .cse0) (and .cse5 (<= 9 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9)) (and .cse6 (<= 32 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 32)) (and .cse7 .cse3 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 98)) (and (<= |ULTIMATE.start_main_~x~0#1| 71) .cse3 .cse0 .cse8) (and .cse0 (<= |ULTIMATE.start_main_~x~0#1| 51) (<= |ULTIMATE.start_main_~y~0#1| 51)) (and .cse7 (<= |ULTIMATE.start_main_~x~0#1| 4) (<= 4 |ULTIMATE.start_main_~x~0#1|)) (and .cse9 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 58)) (and .cse10 .cse3 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 65)) (and .cse11 (<= 27 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 27)) (and .cse12 (<= 43 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 43)) (and (<= |ULTIMATE.start_main_~x~0#1| 22) (<= 22 |ULTIMATE.start_main_~x~0#1|) .cse13) (and (<= (+ |ULTIMATE.start_main_~y~0#1| 1) 0) (<= |ULTIMATE.start_main_~x~0#1| 103) .cse3 .cse0) (and .cse5 .cse3 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 93)) (and (<= |ULTIMATE.start_main_~x~0#1| 60) .cse14 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 89) .cse3 .cse0 .cse15) (and .cse9 (<= |ULTIMATE.start_main_~x~0#1| 44) (<= 44 |ULTIMATE.start_main_~x~0#1|)) (and .cse16 (<= |ULTIMATE.start_main_~x~0#1| 100) .cse3 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 29) (<= 29 |ULTIMATE.start_main_~x~0#1|) .cse17) (and .cse3 .cse0 .cse18 (<= |ULTIMATE.start_main_~x~0#1| 99)) (and (<= |ULTIMATE.start_main_~x~0#1| 77) .cse3 .cse19 .cse0) (and .cse20 (<= |ULTIMATE.start_main_~x~0#1| 76) .cse3 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 41) .cse21 (<= 41 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 25) .cse19 (<= 25 |ULTIMATE.start_main_~x~0#1|)) (and .cse22 (<= |ULTIMATE.start_main_~x~0#1| 28) (<= 28 |ULTIMATE.start_main_~x~0#1|)) (and .cse23 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 57)) (and (<= |ULTIMATE.start_main_~x~0#1| 49) (<= 49 |ULTIMATE.start_main_~x~0#1|) .cse24) (and (<= 20 |ULTIMATE.start_main_~x~0#1|) .cse4 (<= |ULTIMATE.start_main_~x~0#1| 20)) (and (<= |ULTIMATE.start_main_~x~0#1| 11) (<= 11 |ULTIMATE.start_main_~x~0#1|) .cse25) (and (<= 7 |ULTIMATE.start_main_~x~0#1|) .cse26 (<= |ULTIMATE.start_main_~x~0#1| 7)) (and (<= 42 |ULTIMATE.start_main_~x~0#1|) .cse14 (<= |ULTIMATE.start_main_~x~0#1| 42)) (and .cse3 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 79) .cse27) (and .cse3 (<= |ULTIMATE.start_main_~x~0#1| 73) .cse17 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 48) .cse28 (<= 48 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 31) (<= 31 |ULTIMATE.start_main_~x~0#1|) .cse8) (and (<= 23 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 23) .cse27) (and (<= |ULTIMATE.start_main_~x~0#1| 75) .cse11 .cse3 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 85) .cse29 .cse3 .cse0) (and .cse3 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 94) .cse30) (and (<= |ULTIMATE.start_main_~x~0#1| 36) (<= 36 |ULTIMATE.start_main_~x~0#1|) .cse31) (and .cse32 (<= |ULTIMATE.start_main_~x~0#1| 38) (<= 38 |ULTIMATE.start_main_~x~0#1|)) (and .cse33 (<= |ULTIMATE.start_main_~x~0#1| 12) (<= 12 |ULTIMATE.start_main_~x~0#1|)) (and (<= 6 |ULTIMATE.start_main_~x~0#1|) .cse34 (<= |ULTIMATE.start_main_~x~0#1| 6)) (and (<= |ULTIMATE.start_main_~x~0#1| 53) .cse24 .cse0) (and .cse34 (<= |ULTIMATE.start_main_~x~0#1| 96) .cse3 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 13) .cse15 (<= 13 |ULTIMATE.start_main_~x~0#1|)) (and (<= 39 |ULTIMATE.start_main_~x~0#1|) .cse35 (<= |ULTIMATE.start_main_~x~0#1| 39)) (and .cse23 (<= |ULTIMATE.start_main_~x~0#1| 45) (<= 45 |ULTIMATE.start_main_~x~0#1|)) (and (<= 19 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 19) .cse36) (and (<= |ULTIMATE.start_main_~x~0#1| 84) .cse37 .cse3 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 90) .cse33 .cse3 .cse0) (and (<= 46 |ULTIMATE.start_main_~x~0#1|) .cse38 (<= |ULTIMATE.start_main_~x~0#1| 46)) (and .cse39 .cse3 (<= |ULTIMATE.start_main_~x~0#1| 87) .cse0) (and (<= 17 |ULTIMATE.start_main_~x~0#1|) .cse29 (<= |ULTIMATE.start_main_~x~0#1| 17)) (and (<= |ULTIMATE.start_main_~x~0#1| 30) .cse40 (<= 30 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 14) .cse41 (<= 14 |ULTIMATE.start_main_~x~0#1|)) (and .cse3 .cse41 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 88)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) .cse16 (<= |ULTIMATE.start_main_~x~0#1| 2)) (and .cse42 (<= 40 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 40)) (and (<= 21 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 21) .cse43) (and .cse44 (<= |ULTIMATE.start_main_~x~0#1| 55) .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 16) .cse45 (<= 16 |ULTIMATE.start_main_~x~0#1|)) (and .cse3 (<= |ULTIMATE.start_main_~x~0#1| 72) .cse40 .cse0) (and .cse3 .cse46 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 69)) (and .cse42 (<= |ULTIMATE.start_main_~x~0#1| 62) .cse0) (and .cse47 (<= |ULTIMATE.start_main_~x~0#1| 10) (<= 10 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 91) .cse3 .cse25 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 47) .cse44 (<= 47 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 56) .cse38 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 3) .cse18 (<= 3 |ULTIMATE.start_main_~x~0#1|)) (and .cse48 .cse3 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 97)) (and .cse26 .cse3 (<= |ULTIMATE.start_main_~x~0#1| 95) .cse0) (and .cse49 .cse3 (<= |ULTIMATE.start_main_~x~0#1| 78) .cse0) (and .cse49 (<= 24 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 24)) (and .cse43 (<= |ULTIMATE.start_main_~x~0#1| 81) .cse3 .cse0) (and .cse3 .cse2 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 101)) (and .cse12 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 59)) (and .cse20 (<= |ULTIMATE.start_main_~x~0#1| 26) (<= 26 |ULTIMATE.start_main_~x~0#1|)) (and .cse3 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 83) .cse36) (and (<= |ULTIMATE.start_main_~x~0#1| 92) .cse47 .cse3 .cse0) (and .cse3 .cse50 .cse0 (<= |ULTIMATE.start_main_~x~0#1| 102)) (and (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) .cse50 (<= |ULTIMATE.start_main_~x~0#1| 0)) (and .cse37 (<= |ULTIMATE.start_main_~x~0#1| 18) (<= 18 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 67) .cse51 .cse3 .cse0) (and .cse28 (<= |ULTIMATE.start_main_~x~0#1| 54) .cse0) (and (<= 50 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 50) .cse1) (and (<= 5 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 5) .cse48) (and (<= |ULTIMATE.start_main_~x~0#1| 35) .cse51 (<= 35 |ULTIMATE.start_main_~x~0#1|)) (and (<= 8 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 8) .cse30) (and .cse3 .cse0 .cse13 (<= |ULTIMATE.start_main_~x~0#1| 80)) (and (<= |ULTIMATE.start_main_~x~0#1| 66) .cse3 .cse0 .cse31) (and .cse3 (<= |ULTIMATE.start_main_~x~0#1| 68) .cse0 .cse52) (and (<= 34 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 34) .cse52) (and .cse22 (<= |ULTIMATE.start_main_~x~0#1| 74) .cse3 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 64) .cse32 .cse3 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 70) .cse6 .cse3 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 86) .cse3 .cse0 .cse45) (and .cse39 (<= |ULTIMATE.start_main_~x~0#1| 15) (<= 15 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 63) .cse35 .cse0) (and (<= |ULTIMATE.start_main_~x~0#1| 33) .cse46 (<= 33 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 61) .cse0 .cse21) (and .cse10 (<= |ULTIMATE.start_main_~x~0#1| 37) (<= 37 |ULTIMATE.start_main_~x~0#1|)))) [2021-11-23 12:32:39,452 INFO L858 garLoopResultBuilder]: For program point L18-3(lines 18 25) no Hoare annotation was computed. [2021-11-23 12:32:39,456 INFO L732 BasicCegarLoop]: Path program histogram: [8, 5, 1, 1, 1, 1, 1] [2021-11-23 12:32:39,458 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 12:32:39,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:32:39 BoogieIcfgContainer [2021-11-23 12:32:39,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 12:32:39,523 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 12:32:39,523 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 12:32:39,523 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 12:32:39,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:31:07" (3/4) ... [2021-11-23 12:32:39,528 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 12:32:39,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 12:32:39,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 12:32:39,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 12:32:39,588 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 12:32:39,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 12:32:39,589 INFO L158 Benchmark]: Toolchain (without parser) took 92711.18ms. Allocated memory was 94.4MB in the beginning and 625.0MB in the end (delta: 530.6MB). Free memory was 60.6MB in the beginning and 511.7MB in the end (delta: -451.1MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. [2021-11-23 12:32:39,589 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 94.4MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:32:39,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.45ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 60.4MB in the beginning and 100.5MB in the end (delta: -40.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 12:32:39,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.42ms. Allocated memory is still 123.7MB. Free memory was 100.5MB in the beginning and 99.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:32:39,591 INFO L158 Benchmark]: Boogie Preprocessor took 23.65ms. Allocated memory is still 123.7MB. Free memory was 99.2MB in the beginning and 98.3MB in the end (delta: 894.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:32:39,591 INFO L158 Benchmark]: RCFGBuilder took 364.92ms. Allocated memory is still 123.7MB. Free memory was 98.3MB in the beginning and 90.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 12:32:39,592 INFO L158 Benchmark]: TraceAbstraction took 91885.51ms. Allocated memory was 123.7MB in the beginning and 625.0MB in the end (delta: 501.2MB). Free memory was 89.4MB in the beginning and 514.8MB in the end (delta: -425.5MB). Peak memory consumption was 410.8MB. Max. memory is 16.1GB. [2021-11-23 12:32:39,592 INFO L158 Benchmark]: Witness Printer took 65.40ms. Allocated memory is still 625.0MB. Free memory was 514.8MB in the beginning and 511.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 12:32:39,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 94.4MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.45ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 60.4MB in the beginning and 100.5MB in the end (delta: -40.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.42ms. Allocated memory is still 123.7MB. Free memory was 100.5MB in the beginning and 99.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.65ms. Allocated memory is still 123.7MB. Free memory was 99.2MB in the beginning and 98.3MB in the end (delta: 894.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 364.92ms. Allocated memory is still 123.7MB. Free memory was 98.3MB in the beginning and 90.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 91885.51ms. Allocated memory was 123.7MB in the beginning and 625.0MB in the end (delta: 501.2MB). Free memory was 89.4MB in the beginning and 514.8MB in the end (delta: -425.5MB). Peak memory consumption was 410.8MB. Max. memory is 16.1GB. * Witness Printer took 65.40ms. Allocated memory is still 625.0MB. Free memory was 514.8MB in the beginning and 511.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: 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: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 91.7s, OverallIterations: 18, TraceHistogramMax: 163, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.1s, AutomataDifference: 24.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4756 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4756 mSDsluCounter, 2705 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2329 mSDsCounter, 808 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5393 IncrementalHoareTripleChecker+Invalid, 6201 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 808 mSolverCounterUnsat, 376 mSDtfsCounter, 5393 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6603 GetRequests, 5576 SyntacticMatches, 1 SemanticMatches, 1026 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33681 ImplicationChecksByTransitivity, 49.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4456occurred in iteration=13, InterpolantAutomatonStates: 779, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 18 MinimizatonAttempts, 13014 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 108 NumberOfFragments, 1167 HoareAnnotationTreeSize, 2 FomulaSimplifications, 1123 FormulaSimplificationTreeSizeReduction, 2.4s HoareSimplificationTime, 2 FomulaSimplificationsInter, 7770 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 53.5s InterpolantComputationTime, 6304 NumberOfCodeBlocks, 6124 NumberOfCodeBlocksAsserted, 173 NumberOfCheckSat, 9022 ConstructedInterpolants, 0 QuantifiedInterpolants, 22806 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4962 ConjunctsInSsa, 379 ConjunctsInUnsatCore, 45 InterpolantComputations, 5 PerfectInterpolantSequences, 152853/336648 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: 18]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((51 <= x && x <= 52) && y <= 50) || ((x <= 1 && 1 <= x) && y <= 1)) || (((y <= 2147483623 && x <= 82) && y <= 20) && 51 <= x)) || ((y <= 9 && 9 <= x) && x <= 9)) || ((y <= 32 && 32 <= x) && x <= 32)) || (((y <= 4 && y <= 2147483623) && 51 <= x) && x <= 98)) || (((x <= 71 && y <= 2147483623) && 51 <= x) && y <= 31)) || ((51 <= x && x <= 51) && y <= 51)) || ((y <= 4 && x <= 4) && 4 <= x)) || ((y <= 44 && 51 <= x) && x <= 58)) || (((y <= 37 && y <= 2147483623) && 51 <= x) && x <= 65)) || ((y <= 27 && 27 <= x) && x <= 27)) || ((y <= 43 && 43 <= x) && x <= 43)) || ((x <= 22 && 22 <= x) && y <= 22)) || (((y + 1 <= 0 && x <= 103) && y <= 2147483623) && 51 <= x)) || (((y <= 9 && y <= 2147483623) && 51 <= x) && x <= 93)) || ((x <= 60 && y <= 42) && 51 <= x)) || (((x <= 89 && y <= 2147483623) && 51 <= x) && y <= 13)) || ((y <= 44 && x <= 44) && 44 <= x)) || (((y <= 2 && x <= 100) && y <= 2147483623) && 51 <= x)) || ((x <= 29 && 29 <= x) && y <= 29)) || (((y <= 2147483623 && 51 <= x) && y <= 3) && x <= 99)) || (((x <= 77 && y <= 2147483623) && y <= 25) && 51 <= x)) || (((y <= 26 && x <= 76) && y <= 2147483623) && 51 <= x)) || ((x <= 41 && y <= 41) && 41 <= x)) || ((x <= 25 && y <= 25) && 25 <= x)) || ((y <= 28 && x <= 28) && 28 <= x)) || ((y <= 45 && 51 <= x) && x <= 57)) || ((x <= 49 && 49 <= x) && y <= 49)) || ((20 <= x && y <= 20) && x <= 20)) || ((x <= 11 && 11 <= x) && y <= 11)) || ((7 <= x && y <= 7) && x <= 7)) || ((42 <= x && y <= 42) && x <= 42)) || (((y <= 2147483623 && 51 <= x) && x <= 79) && y <= 23)) || (((y <= 2147483623 && x <= 73) && y <= 29) && 51 <= x)) || ((x <= 48 && y <= 48) && 48 <= x)) || ((x <= 31 && 31 <= x) && y <= 31)) || ((23 <= x && x <= 23) && y <= 23)) || (((x <= 75 && y <= 27) && y <= 2147483623) && 51 <= x)) || (((x <= 85 && y <= 17) && y <= 2147483623) && 51 <= x)) || (((y <= 2147483623 && 51 <= x) && x <= 94) && y <= 8)) || ((x <= 36 && 36 <= x) && y <= 36)) || ((y <= 38 && x <= 38) && 38 <= x)) || ((y <= 12 && x <= 12) && 12 <= x)) || ((6 <= x && y <= 6) && x <= 6)) || ((x <= 53 && y <= 49) && 51 <= x)) || (((y <= 6 && x <= 96) && y <= 2147483623) && 51 <= x)) || ((x <= 13 && y <= 13) && 13 <= x)) || ((39 <= x && y <= 39) && x <= 39)) || ((y <= 45 && x <= 45) && 45 <= x)) || ((19 <= x && x <= 19) && y <= 19)) || (((x <= 84 && y <= 18) && y <= 2147483623) && 51 <= x)) || (((x <= 90 && y <= 12) && y <= 2147483623) && 51 <= x)) || ((46 <= x && y <= 46) && x <= 46)) || (((y <= 15 && y <= 2147483623) && x <= 87) && 51 <= x)) || ((17 <= x && y <= 17) && x <= 17)) || ((x <= 30 && y <= 30) && 30 <= x)) || ((x <= 14 && y <= 14) && 14 <= x)) || (((y <= 2147483623 && y <= 14) && 51 <= x) && x <= 88)) || ((2 <= x && y <= 2) && x <= 2)) || ((y <= 40 && 40 <= x) && x <= 40)) || ((21 <= x && x <= 21) && y <= 21)) || ((y <= 47 && x <= 55) && 51 <= x)) || ((x <= 16 && y <= 16) && 16 <= x)) || (((y <= 2147483623 && x <= 72) && y <= 30) && 51 <= x)) || (((y <= 2147483623 && y <= 33) && 51 <= x) && x <= 69)) || ((y <= 40 && x <= 62) && 51 <= x)) || ((y <= 10 && x <= 10) && 10 <= x)) || (((x <= 91 && y <= 2147483623) && y <= 11) && 51 <= x)) || ((x <= 47 && y <= 47) && 47 <= x)) || ((x <= 56 && y <= 46) && 51 <= x)) || ((x <= 3 && y <= 3) && 3 <= x)) || (((y <= 5 && y <= 2147483623) && 51 <= x) && x <= 97)) || (((y <= 7 && y <= 2147483623) && x <= 95) && 51 <= x)) || (((y <= 24 && y <= 2147483623) && x <= 78) && 51 <= x)) || ((y <= 24 && 24 <= x) && x <= 24)) || (((y <= 21 && x <= 81) && y <= 2147483623) && 51 <= x)) || (((y <= 2147483623 && y <= 1) && 51 <= x) && x <= 101)) || ((y <= 43 && 51 <= x) && x <= 59)) || ((y <= 26 && x <= 26) && 26 <= x)) || (((y <= 2147483623 && 51 <= x) && x <= 83) && y <= 19)) || (((x <= 92 && y <= 10) && y <= 2147483623) && 51 <= x)) || (((y <= 2147483623 && y <= 0) && 51 <= x) && x <= 102)) || (((0 <= x && 0 <= y) && y <= 0) && x <= 0)) || ((y <= 18 && x <= 18) && 18 <= x)) || (((x <= 67 && y <= 35) && y <= 2147483623) && 51 <= x)) || ((y <= 48 && x <= 54) && 51 <= x)) || ((50 <= x && x <= 50) && y <= 50)) || ((5 <= x && x <= 5) && y <= 5)) || ((x <= 35 && y <= 35) && 35 <= x)) || ((8 <= x && x <= 8) && y <= 8)) || (((y <= 2147483623 && 51 <= x) && y <= 22) && x <= 80)) || (((x <= 66 && y <= 2147483623) && 51 <= x) && y <= 36)) || (((y <= 2147483623 && x <= 68) && 51 <= x) && y <= 34)) || ((34 <= x && x <= 34) && y <= 34)) || (((y <= 28 && x <= 74) && y <= 2147483623) && 51 <= x)) || (((x <= 64 && y <= 38) && y <= 2147483623) && 51 <= x)) || (((x <= 70 && y <= 32) && y <= 2147483623) && 51 <= x)) || (((x <= 86 && y <= 2147483623) && 51 <= x) && y <= 16)) || ((y <= 15 && x <= 15) && 15 <= x)) || ((x <= 63 && y <= 39) && 51 <= x)) || ((x <= 33 && y <= 33) && 33 <= x)) || ((x <= 61 && 51 <= x) && y <= 41)) || ((y <= 37 && x <= 37) && 37 <= x) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 12:32:39,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d2d7f2-7376-4c95-9e80-c3c6affcbc84/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE