./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:09:08,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:09:08,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:09:08,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:09:08,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:09:08,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:09:08,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:09:08,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:09:08,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:09:08,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:09:08,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:09:08,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:09:08,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:09:08,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:09:08,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:09:08,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:09:08,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:09:08,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:09:08,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:09:08,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:09:08,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:09:08,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:09:08,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:09:08,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:09:08,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:09:08,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:09:08,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:09:08,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:09:08,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:09:08,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:09:08,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:09:08,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:09:08,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:09:08,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:09:08,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:09:08,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:09:08,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:09:08,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:09:08,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:09:08,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:09:08,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:09:08,675 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-07 02:09:08,737 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:09:08,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:09:08,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:09:08,740 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:09:08,740 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:09:08,740 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:09:08,741 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:09:08,749 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:09:08,749 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:09:08,750 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:09:08,751 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:09:08,751 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:09:08,752 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:09:08,752 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:09:08,752 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:09:08,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:09:08,754 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 02:09:08,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:09:08,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:09:08,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:09:08,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:09:08,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:09:08,756 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-07 02:09:08,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:09:08,756 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:09:08,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:09:08,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:09:08,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:09:08,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:09:08,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:09:08,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:09:08,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:09:08,759 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:09:08,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:09:08,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:09:08,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:09:08,760 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:09:08,761 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 [2021-11-07 02:09:09,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:09:09,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:09:09,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:09:09,171 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:09:09,172 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:09:09,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2021-11-07 02:09:09,279 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/data/058121822/90af242ec4e8414b9cdf7b6bc9ae4946/FLAGa94cf046c [2021-11-07 02:09:09,914 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:09:09,915 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2021-11-07 02:09:09,932 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/data/058121822/90af242ec4e8414b9cdf7b6bc9ae4946/FLAGa94cf046c [2021-11-07 02:09:10,284 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/data/058121822/90af242ec4e8414b9cdf7b6bc9ae4946 [2021-11-07 02:09:10,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:09:10,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:09:10,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:10,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:09:10,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:09:10,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:10" (1/1) ... [2021-11-07 02:09:10,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70fcb472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10, skipping insertion in model container [2021-11-07 02:09:10,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:09:10" (1/1) ... [2021-11-07 02:09:10,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:09:10,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:09:10,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:10,615 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:09:10,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:09:10,667 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:09:10,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10 WrapperNode [2021-11-07 02:09:10,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:09:10,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:09:10,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:09:10,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:09:10,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10" (1/1) ... [2021-11-07 02:09:10,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10" (1/1) ... [2021-11-07 02:09:10,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:09:10,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:09:10,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:09:10,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:09:10,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10" (1/1) ... [2021-11-07 02:09:10,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10" (1/1) ... [2021-11-07 02:09:10,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10" (1/1) ... [2021-11-07 02:09:10,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10" (1/1) ... [2021-11-07 02:09:10,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10" (1/1) ... [2021-11-07 02:09:10,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10" (1/1) ... [2021-11-07 02:09:10,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10" (1/1) ... [2021-11-07 02:09:10,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:09:10,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:09:10,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:09:10,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:09:10,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10" (1/1) ... [2021-11-07 02:09:10,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:09:10,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:09:10,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:09:10,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:09:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:09:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:09:11,087 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:09:11,088 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-07 02:09:11,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:09:11 BoogieIcfgContainer [2021-11-07 02:09:11,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:09:11,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:09:11,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:09:11,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:09:11,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:09:10" (1/3) ... [2021-11-07 02:09:11,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132cdbb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:09:11, skipping insertion in model container [2021-11-07 02:09:11,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:09:10" (2/3) ... [2021-11-07 02:09:11,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132cdbb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:09:11, skipping insertion in model container [2021-11-07 02:09:11,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:09:11" (3/3) ... [2021-11-07 02:09:11,104 INFO L111 eAbstractionObserver]: Analyzing ICFG Cairo_step2-1.c [2021-11-07 02:09:11,112 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:09:11,112 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-07 02:09:11,186 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:09:11,200 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 [2021-11-07 02:09:11,200 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 02:09:11,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 8 states have internal predecessors, (10), 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) [2021-11-07 02:09:11,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 02:09:11,229 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:11,230 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 02:09:11,230 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-11-07 02:09:11,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:11,242 INFO L85 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2021-11-07 02:09:11,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:09:11,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851968313] [2021-11-07 02:09:11,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:11,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:09:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:11,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:11,504 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:09:11,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851968313] [2021-11-07 02:09:11,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851968313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:11,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:11,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-07 02:09:11,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188279680] [2021-11-07 02:09:11,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:09:11,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:09:11,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:09:11,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:09:11,535 INFO L87 Difference]: Start difference. First operand has 9 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:11,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:11,587 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-11-07 02:09:11,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:09:11,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-07 02:09:11,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:11,600 INFO L225 Difference]: With dead ends: 9 [2021-11-07 02:09:11,600 INFO L226 Difference]: Without dead ends: 6 [2021-11-07 02:09:11,604 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:09:11,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2021-11-07 02:09:11,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-11-07 02:09:11,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2021-11-07 02:09:11,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-11-07 02:09:11,654 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2021-11-07 02:09:11,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:11,655 INFO L470 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2021-11-07 02:09:11,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:09:11,656 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-11-07 02:09:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 02:09:11,656 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:11,657 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 02:09:11,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 02:09:11,658 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-11-07 02:09:11,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:11,659 INFO L85 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2021-11-07 02:09:11,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:09:11,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83001680] [2021-11-07 02:09:11,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:11,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:09:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:11,706 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:09:11,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83001680] [2021-11-07 02:09:11,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83001680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:11,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:09:11,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 02:09:11,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121075476] [2021-11-07 02:09:11,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:09:11,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:09:11,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:09:11,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:09:11,712 INFO L87 Difference]: Start difference. First operand 6 states and 6 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) [2021-11-07 02:09:11,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:11,729 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-11-07 02:09:11,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:09:11,730 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 [2021-11-07 02:09:11,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:11,731 INFO L225 Difference]: With dead ends: 10 [2021-11-07 02:09:11,731 INFO L226 Difference]: Without dead ends: 9 [2021-11-07 02:09:11,732 INFO L786 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 [2021-11-07 02:09:11,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-07 02:09:11,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-07 02:09:11,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-07 02:09:11,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-07 02:09:11,736 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2021-11-07 02:09:11,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:11,737 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-07 02:09:11,737 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) [2021-11-07 02:09:11,737 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-07 02:09:11,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 02:09:11,738 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:09:11,738 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2021-11-07 02:09:11,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 02:09:11,739 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-11-07 02:09:11,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:09:11,740 INFO L85 PathProgramCache]: Analyzing trace with hash -423045501, now seen corresponding path program 1 times [2021-11-07 02:09:11,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:09:11,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694777370] [2021-11-07 02:09:11,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:11,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:09:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:11,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:11,802 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:09:11,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694777370] [2021-11-07 02:09:11,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694777370] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 02:09:11,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860908181] [2021-11-07 02:09:11,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:09:11,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:09:11,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:09:11,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:09:11,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 02:09:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:09:11,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:09:11,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:09:12,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:12,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:09:12,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:09:12,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860908181] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:09:12,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1147701104] [2021-11-07 02:09:12,112 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-07 02:09:12,112 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 02:09:12,118 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 02:09:12,125 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 02:09:12,126 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 02:09:12,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:09:12,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 02:09:12,182 INFO L180 QuantifierPusher]: treesize reduction 21, result has 38.2 percent of original size [2021-11-07 02:09:12,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 02:09:12,195 INFO L180 QuantifierPusher]: treesize reduction 21, result has 38.2 percent of original size [2021-11-07 02:09:12,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-07 02:09:12,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:09:12,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:09:12,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:09:12,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:09:12,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:09:12,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:09:12,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:09:12,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:09:12,344 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 02:09:12,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1147701104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 02:09:12,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-11-07 02:09:12,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3, 3] total 8 [2021-11-07 02:09:12,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059532561] [2021-11-07 02:09:12,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:09:12,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:09:12,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:09:12,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:09:12,509 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2021-11-07 02:09:12,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:09:12,535 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-11-07 02:09:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:09:12,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 8 [2021-11-07 02:09:12,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:09:12,537 INFO L225 Difference]: With dead ends: 9 [2021-11-07 02:09:12,537 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 02:09:12,538 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:09:12,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 02:09:12,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 02:09:12,539 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) [2021-11-07 02:09:12,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 02:09:12,539 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-11-07 02:09:12,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:09:12,541 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 02:09:12,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2021-11-07 02:09:12,541 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 02:09:12,542 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 02:09:12,545 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 02:09:12,545 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-11-07 02:09:12,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:09:12,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:09:12,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 02:09:12,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:09:12,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 02:09:12,813 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-11-07 02:09:12,813 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 02:09:12,814 INFO L857 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2021-11-07 02:09:12,814 INFO L857 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2021-11-07 02:09:12,814 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 19) no Hoare annotation was computed. [2021-11-07 02:09:12,815 INFO L853 garLoopResultBuilder]: At program point L15-1(lines 15 19) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-11-07 02:09:12,816 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-11-07 02:09:12,816 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 02:09:12,817 INFO L853 garLoopResultBuilder]: At program point L16-2(lines 16 18) the Hoare annotation is: (and (< 0 (+ ULTIMATE.start_main_~x~0 2)) (<= ULTIMATE.start_main_~x~0 2147483647)) [2021-11-07 02:09:12,821 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-07 02:09:12,825 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:09:12,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:09:12 BoogieIcfgContainer [2021-11-07 02:09:12,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:09:12,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:09:12,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:09:12,859 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:09:12,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:09:11" (3/4) ... [2021-11-07 02:09:12,864 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 02:09:12,875 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-07 02:09:12,876 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 02:09:12,877 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 02:09:12,929 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 02:09:12,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:09:12,932 INFO L168 Benchmark]: Toolchain (without parser) took 2638.24 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 58.8 MB in the beginning and 86.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:12,933 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 67.3 MB in the beginning and 67.2 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:09:12,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.00 ms. Allocated memory is still 94.4 MB. Free memory was 58.6 MB in the beginning and 70.8 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:12,934 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.95 ms. Allocated memory is still 94.4 MB. Free memory was 70.8 MB in the beginning and 69.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:09:12,935 INFO L168 Benchmark]: Boogie Preprocessor took 26.16 ms. Allocated memory is still 94.4 MB. Free memory was 69.5 MB in the beginning and 68.7 MB in the end (delta: 746.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:12,936 INFO L168 Benchmark]: RCFGBuilder took 351.71 ms. Allocated memory is still 94.4 MB. Free memory was 68.7 MB in the beginning and 60.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:12,936 INFO L168 Benchmark]: TraceAbstraction took 1764.47 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 59.9 MB in the beginning and 88.7 MB in the end (delta: -28.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:12,937 INFO L168 Benchmark]: Witness Printer took 72.01 ms. Allocated memory is still 134.2 MB. Free memory was 88.7 MB in the beginning and 86.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:09:12,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 67.3 MB in the beginning and 67.2 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 373.00 ms. Allocated memory is still 94.4 MB. Free memory was 58.6 MB in the beginning and 70.8 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.95 ms. Allocated memory is still 94.4 MB. Free memory was 70.8 MB in the beginning and 69.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.16 ms. Allocated memory is still 94.4 MB. Free memory was 69.5 MB in the beginning and 68.7 MB in the end (delta: 746.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 351.71 ms. Allocated memory is still 94.4 MB. Free memory was 68.7 MB in the beginning and 60.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1764.47 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 59.9 MB in the beginning and 88.7 MB in the end (delta: -28.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 72.01 ms. Allocated memory is still 134.2 MB. Free memory was 88.7 MB in the beginning and 86.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 12 SDslu, 0 SDs, 0 SdLazy, 21 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 15 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 17 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/9 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: OVERALL_TIME[ms]: 232, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 10, TOOLS_POST_TIME[ms]: 35, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 10, TOOLS_QUANTIFIERELIM_TIME[ms]: 30, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 11, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 20, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME[ms]: 139, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 2, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 5, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 16, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 16, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 9, DAG_COMPRESSION_PROCESSED_NODES: 47, DAG_COMPRESSION_RETAINED_NODES: 22, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 < x + 2 && x <= 2147483647 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-11-07 02:09:13,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc6dc18e-1920-4bee-b484-e809f225647f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE