./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/terminator_02-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/terminator_02-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:10:33,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:10:33,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:10:33,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:10:33,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:10:33,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:10:33,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:10:33,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:10:33,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:10:33,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:10:33,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:10:33,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:10:33,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:10:33,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:10:33,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:10:33,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:10:33,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:10:33,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:10:33,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:10:33,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:10:33,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:10:33,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:10:33,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:10:33,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:10:33,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:10:33,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:10:33,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:10:33,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:10:33,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:10:33,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:10:33,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:10:33,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:10:33,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:10:33,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:10:33,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:10:33,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:10:33,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:10:33,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:10:33,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:10:33,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:10:33,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:10:33,725 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:10:33,791 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:10:33,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:10:33,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:10:33,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:10:33,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:10:33,803 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:10:33,803 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:10:33,803 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:10:33,804 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:10:33,804 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:10:33,805 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:10:33,805 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:10:33,806 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:10:33,806 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:10:33,806 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:10:33,806 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:10:33,806 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:10:33,807 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:10:33,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:10:33,807 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:10:33,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:10:33,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:10:33,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:10:33,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:10:33,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:10:33,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:10:33,809 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:10:33,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:10:33,809 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:10:33,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:10:33,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:10:33,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:10:33,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:10:33,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:10:33,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:10:33,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:10:33,811 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:10:33,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:10:33,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:10:33,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:10:33,812 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:10:33,812 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_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b [2021-11-23 03:10:34,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:10:34,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:10:34,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:10:34,225 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:10:34,226 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:10:34,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/loops/terminator_02-1.c [2021-11-23 03:10:34,331 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/data/9b79c7178/18cb8653a7c5452588c89a5c57ee3399/FLAG388c9b4c3 [2021-11-23 03:10:34,885 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:10:34,886 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/sv-benchmarks/c/loops/terminator_02-1.c [2021-11-23 03:10:34,894 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/data/9b79c7178/18cb8653a7c5452588c89a5c57ee3399/FLAG388c9b4c3 [2021-11-23 03:10:35,257 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/data/9b79c7178/18cb8653a7c5452588c89a5c57ee3399 [2021-11-23 03:10:35,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:10:35,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:10:35,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:10:35,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:10:35,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:10:35,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:35" (1/1) ... [2021-11-23 03:10:35,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3140b3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35, skipping insertion in model container [2021-11-23 03:10:35,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:35" (1/1) ... [2021-11-23 03:10:35,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:10:35,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:10:35,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/sv-benchmarks/c/loops/terminator_02-1.c[327,340] [2021-11-23 03:10:35,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:10:35,481 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:10:35,496 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/sv-benchmarks/c/loops/terminator_02-1.c[327,340] [2021-11-23 03:10:35,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:10:35,515 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:10:35,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35 WrapperNode [2021-11-23 03:10:35,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:10:35,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:10:35,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:10:35,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:10:35,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35" (1/1) ... [2021-11-23 03:10:35,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35" (1/1) ... [2021-11-23 03:10:35,557 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2021-11-23 03:10:35,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:10:35,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:10:35,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:10:35,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:10:35,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35" (1/1) ... [2021-11-23 03:10:35,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35" (1/1) ... [2021-11-23 03:10:35,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35" (1/1) ... [2021-11-23 03:10:35,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35" (1/1) ... [2021-11-23 03:10:35,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35" (1/1) ... [2021-11-23 03:10:35,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35" (1/1) ... [2021-11-23 03:10:35,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35" (1/1) ... [2021-11-23 03:10:35,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:10:35,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:10:35,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:10:35,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:10:35,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35" (1/1) ... [2021-11-23 03:10:35,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:10:35,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:10:35,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:10:35,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:10:35,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:10:35,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:10:35,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:10:35,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:10:35,791 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:10:35,793 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:10:35,998 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:10:36,025 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:10:36,027 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 03:10:36,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:36 BoogieIcfgContainer [2021-11-23 03:10:36,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:10:36,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:10:36,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:10:36,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:10:36,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:10:35" (1/3) ... [2021-11-23 03:10:36,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40be204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:10:36, skipping insertion in model container [2021-11-23 03:10:36,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:35" (2/3) ... [2021-11-23 03:10:36,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40be204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:10:36, skipping insertion in model container [2021-11-23 03:10:36,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:36" (3/3) ... [2021-11-23 03:10:36,042 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2021-11-23 03:10:36,047 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:10:36,048 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:10:36,106 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:10:36,116 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 03:10:36,116 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:10:36,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 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 03:10:36,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 03:10:36,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:10:36,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 03:10:36,142 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:10:36,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:10:36,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2064998, now seen corresponding path program 1 times [2021-11-23 03:10:36,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:10:36,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994291143] [2021-11-23 03:10:36,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:10:36,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:10:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:10:36,350 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 03:10:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 03:10:36,388 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 03:10:36,391 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 03:10:36,393 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:10:36,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:10:36,402 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-23 03:10:36,406 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:10:36,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:10:36 BoogieIcfgContainer [2021-11-23 03:10:36,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:10:36,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:10:36,437 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:10:36,437 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:10:36,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:36" (3/4) ... [2021-11-23 03:10:36,441 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 03:10:36,501 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4e0945-e351-4877-8c54-79e2766be9fe/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:10:36,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:10:36,506 INFO L158 Benchmark]: Toolchain (without parser) took 1240.02ms. Allocated memory is still 88.1MB. Free memory was 50.6MB in the beginning and 61.3MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:10:36,509 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 88.1MB. Free memory was 67.0MB in the beginning and 66.9MB in the end (delta: 88.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:10:36,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.11ms. Allocated memory is still 88.1MB. Free memory was 50.5MB in the beginning and 40.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:10:36,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.87ms. Allocated memory is still 88.1MB. Free memory was 40.9MB in the beginning and 39.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:10:36,512 INFO L158 Benchmark]: Boogie Preprocessor took 24.79ms. Allocated memory is still 88.1MB. Free memory was 39.4MB in the beginning and 38.5MB in the end (delta: 906.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:10:36,513 INFO L158 Benchmark]: RCFGBuilder took 446.53ms. Allocated memory is still 88.1MB. Free memory was 38.4MB in the beginning and 61.8MB in the end (delta: -23.4MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-11-23 03:10:36,514 INFO L158 Benchmark]: TraceAbstraction took 399.00ms. Allocated memory is still 88.1MB. Free memory was 61.5MB in the beginning and 63.0MB in the end (delta: -1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:10:36,514 INFO L158 Benchmark]: Witness Printer took 64.89ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 61.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:10:36,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 88.1MB. Free memory was 67.0MB in the beginning and 66.9MB in the end (delta: 88.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.11ms. Allocated memory is still 88.1MB. Free memory was 50.5MB in the beginning and 40.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.87ms. Allocated memory is still 88.1MB. Free memory was 40.9MB in the beginning and 39.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.79ms. Allocated memory is still 88.1MB. Free memory was 39.4MB in the beginning and 38.5MB in the end (delta: 906.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 446.53ms. Allocated memory is still 88.1MB. Free memory was 38.4MB in the beginning and 61.8MB in the end (delta: -23.4MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * TraceAbstraction took 399.00ms. Allocated memory is still 88.1MB. Free memory was 61.5MB in the beginning and 63.0MB in the end (delta: -1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 64.89ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 61.3MB in the end (delta: 1.7MB). 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 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int x=__VERIFIER_nondet_int(); [L17] int y=__VERIFIER_nondet_int(); [L18] int z=__VERIFIER_nondet_int(); [L20] COND FALSE !(x<100 && 100