./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/for_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/for_infinite_loop_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG --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 c17b441a3a41e59254a60cafcf3cc7598a3f304d78ae8f2384f656f9e2144d40 ........................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:57:41,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:57:41,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:57:41,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:57:41,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:57:41,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:57:41,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:57:41,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:57:41,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:57:41,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:57:41,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:57:41,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:57:41,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:57:41,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:57:41,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:57:41,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:57:41,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:57:41,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:57:41,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:57:41,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:57:41,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:57:41,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:57:41,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:57:41,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:57:41,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:57:41,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:57:41,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:57:41,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:57:41,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:57:41,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:57:41,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:57:41,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:57:41,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:57:41,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:57:41,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:57:41,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:57:41,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:57:41,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:57:41,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:57:41,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:57:41,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:57:41,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:57:41,745 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:57:41,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:57:41,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:57:41,747 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:57:41,748 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:57:41,748 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:57:41,749 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:57:41,749 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:57:41,749 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:57:41,750 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:57:41,750 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:57:41,751 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:57:41,751 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:57:41,752 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:57:41,752 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:57:41,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:57:41,754 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:57:41,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:57:41,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:57:41,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:57:41,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:57:41,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:57:41,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:57:41,756 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:57:41,757 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:57:41,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:57:41,758 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:57:41,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:57:41,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:57:41,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:57:41,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:57:41,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:57:41,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:57:41,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:57:41,761 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:57:41,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:57:41,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:57:41,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:57:41,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:57:41,780 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_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c17b441a3a41e59254a60cafcf3cc7598a3f304d78ae8f2384f656f9e2144d40 [2021-10-29 04:57:42,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:57:42,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:57:42,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:57:42,219 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:57:42,220 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:57:42,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/loops/for_infinite_loop_1.c [2021-10-29 04:57:42,302 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/data/71498d48d/823b853abd034a9597e4097d32861141/FLAGf0ef6cfe3 [2021-10-29 04:57:42,869 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:57:42,870 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/sv-benchmarks/c/loops/for_infinite_loop_1.c [2021-10-29 04:57:42,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/data/71498d48d/823b853abd034a9597e4097d32861141/FLAGf0ef6cfe3 [2021-10-29 04:57:43,257 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/data/71498d48d/823b853abd034a9597e4097d32861141 [2021-10-29 04:57:43,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:57:43,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:57:43,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:57:43,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:57:43,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:57:43,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:57:43" (1/1) ... [2021-10-29 04:57:43,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4feea58e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43, skipping insertion in model container [2021-10-29 04:57:43,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:57:43" (1/1) ... [2021-10-29 04:57:43,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:57:43,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:57:43,458 WARN L228 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_1c043418-b5f1-4c25-b483-1e8787c9d5cd/sv-benchmarks/c/loops/for_infinite_loop_1.c[418,431] [2021-10-29 04:57:43,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:57:43,483 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:57:43,499 WARN L228 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_1c043418-b5f1-4c25-b483-1e8787c9d5cd/sv-benchmarks/c/loops/for_infinite_loop_1.c[418,431] [2021-10-29 04:57:43,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:57:43,521 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:57:43,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43 WrapperNode [2021-10-29 04:57:43,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:57:43,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:57:43,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:57:43,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:57:43,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43" (1/1) ... [2021-10-29 04:57:43,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43" (1/1) ... [2021-10-29 04:57:43,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:57:43,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:57:43,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:57:43,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:57:43,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43" (1/1) ... [2021-10-29 04:57:43,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43" (1/1) ... [2021-10-29 04:57:43,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43" (1/1) ... [2021-10-29 04:57:43,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43" (1/1) ... [2021-10-29 04:57:43,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43" (1/1) ... [2021-10-29 04:57:43,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43" (1/1) ... [2021-10-29 04:57:43,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43" (1/1) ... [2021-10-29 04:57:43,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:57:43,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:57:43,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:57:43,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:57:43,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43" (1/1) ... [2021-10-29 04:57:43,612 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:57:43,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:57:43,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:57:43,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:57:43,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:57:43,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:57:43,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:57:43,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:57:44,126 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:57:44,127 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-29 04:57:44,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:57:44 BoogieIcfgContainer [2021-10-29 04:57:44,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:57:44,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:57:44,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:57:44,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:57:44,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:57:43" (1/3) ... [2021-10-29 04:57:44,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3562c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:57:44, skipping insertion in model container [2021-10-29 04:57:44,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:57:43" (2/3) ... [2021-10-29 04:57:44,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3562c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:57:44, skipping insertion in model container [2021-10-29 04:57:44,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:57:44" (3/3) ... [2021-10-29 04:57:44,150 INFO L111 eAbstractionObserver]: Analyzing ICFG for_infinite_loop_1.c [2021-10-29 04:57:44,157 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:57:44,171 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-29 04:57:44,234 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:57:44,244 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:57:44,244 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-29 04:57:44,284 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:44,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:57:44,291 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:57:44,292 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 04:57:44,303 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:57:44,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:57:44,312 INFO L85 PathProgramCache]: Analyzing trace with hash 70443351, now seen corresponding path program 1 times [2021-10-29 04:57:44,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:57:44,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003429376] [2021-10-29 04:57:44,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:57:44,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:57:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:57:44,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:57:44,578 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:57:44,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003429376] [2021-10-29 04:57:44,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003429376] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:57:44,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:57:44,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:57:44,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020609224] [2021-10-29 04:57:44,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:57:44,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:57:44,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:57:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:57:44,615 INFO L87 Difference]: Start difference. First operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:44,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:57:44,632 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2021-10-29 04:57:44,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:57:44,634 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-29 04:57:44,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:57:44,645 INFO L225 Difference]: With dead ends: 19 [2021-10-29 04:57:44,646 INFO L226 Difference]: Without dead ends: 7 [2021-10-29 04:57:44,649 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:57:44,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-29 04:57:44,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-29 04:57:44,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:44,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-29 04:57:44,751 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2021-10-29 04:57:44,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:57:44,752 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-29 04:57:44,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:44,759 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-29 04:57:44,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:57:44,760 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:57:44,760 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-29 04:57:44,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:57:44,762 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:57:44,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:57:44,769 INFO L85 PathProgramCache]: Analyzing trace with hash 70411126, now seen corresponding path program 1 times [2021-10-29 04:57:44,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:57:44,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689304129] [2021-10-29 04:57:44,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:57:44,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:57:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:57:44,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:57:44,877 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:57:44,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689304129] [2021-10-29 04:57:44,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689304129] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:57:44,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:57:44,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:57:44,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294620742] [2021-10-29 04:57:44,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:57:44,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:57:44,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:57:44,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:57:44,883 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:44,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:57:44,903 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2021-10-29 04:57:44,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:57:44,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-29 04:57:44,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:57:44,904 INFO L225 Difference]: With dead ends: 8 [2021-10-29 04:57:44,904 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:57:44,905 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:57:44,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:57:44,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:57:44,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:44,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:57:44,907 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-10-29 04:57:44,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:57:44,907 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:57:44,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:57:44,908 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:57:44,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:57:44,911 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:57:44,912 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:57:44,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:57:44,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 04:57:44,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:57:44,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:57:44,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:57:44,968 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 04:57:44,968 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-10-29 04:57:44,969 INFO L853 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (= ULTIMATE.start_main_~x~0 0) [2021-10-29 04:57:44,969 INFO L857 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2021-10-29 04:57:44,969 INFO L857 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2021-10-29 04:57:44,969 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 04:57:44,970 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-10-29 04:57:44,970 INFO L857 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-29 04:57:44,971 INFO L857 garLoopResultBuilder]: For program point L10(lines 10 12) no Hoare annotation was computed. [2021-10-29 04:57:44,971 INFO L853 garLoopResultBuilder]: At program point L10-2(lines 1 29) the Hoare annotation is: (and (= ULTIMATE.start_main_~x~0 0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-29 04:57:44,975 INFO L857 garLoopResultBuilder]: For program point L10-3(lines 10 12) no Hoare annotation was computed. [2021-10-29 04:57:44,975 INFO L860 garLoopResultBuilder]: At program point L10-5(lines 1 29) the Hoare annotation is: true [2021-10-29 04:57:44,979 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 04:57:44,981 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:57:44,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:57:44 BoogieIcfgContainer [2021-10-29 04:57:44,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:57:44,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:57:44,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:57:44,999 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:57:45,003 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:57:44" (3/4) ... [2021-10-29 04:57:45,008 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:57:45,020 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-29 04:57:45,020 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-29 04:57:45,021 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:57:45,021 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:57:45,068 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:57:45,069 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:57:45,071 INFO L168 Benchmark]: Toolchain (without parser) took 1805.46 ms. Allocated memory was 86.0 MB in the beginning and 123.7 MB in the end (delta: 37.7 MB). Free memory was 50.4 MB in the beginning and 89.9 MB in the end (delta: -39.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:57:45,072 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 66.5 MB in the beginning and 66.5 MB in the end (delta: 55.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:57:45,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.92 ms. Allocated memory is still 86.0 MB. Free memory was 50.1 MB in the beginning and 40.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:45,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.06 ms. Allocated memory is still 86.0 MB. Free memory was 40.6 MB in the beginning and 39.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:45,075 INFO L168 Benchmark]: Boogie Preprocessor took 26.95 ms. Allocated memory is still 86.0 MB. Free memory was 39.2 MB in the beginning and 38.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:57:45,076 INFO L168 Benchmark]: RCFGBuilder took 535.91 ms. Allocated memory was 86.0 MB in the beginning and 123.7 MB in the end (delta: 37.7 MB). Free memory was 38.1 MB in the beginning and 96.0 MB in the end (delta: -57.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:45,077 INFO L168 Benchmark]: TraceAbstraction took 865.32 ms. Allocated memory is still 123.7 MB. Free memory was 95.5 MB in the beginning and 92.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 503.1 kB. Max. memory is 16.1 GB. [2021-10-29 04:57:45,078 INFO L168 Benchmark]: Witness Printer took 70.18 ms. Allocated memory is still 123.7 MB. Free memory was 92.0 MB in the beginning and 89.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:57:45,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 66.5 MB in the beginning and 66.5 MB in the end (delta: 55.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.92 ms. Allocated memory is still 86.0 MB. Free memory was 50.1 MB in the beginning and 40.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.06 ms. Allocated memory is still 86.0 MB. Free memory was 40.6 MB in the beginning and 39.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.95 ms. Allocated memory is still 86.0 MB. Free memory was 39.2 MB in the beginning and 38.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 535.91 ms. Allocated memory was 86.0 MB in the beginning and 123.7 MB in the end (delta: 37.7 MB). Free memory was 38.1 MB in the beginning and 96.0 MB in the end (delta: -57.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 865.32 ms. Allocated memory is still 123.7 MB. Free memory was 95.5 MB in the beginning and 92.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 503.1 kB. Max. memory is 16.1 GB. * Witness Printer took 70.18 ms. Allocated memory is still 123.7 MB. Free memory was 92.0 MB in the beginning and 89.9 MB in the end (delta: 2.1 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: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 5 SDslu, 2 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 12 HoareAnnotationTreeSize, 3 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: x == 0 && !(0 == cond) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: x == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-29 04:57:45,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c043418-b5f1-4c25-b483-1e8787c9d5cd/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...