./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label37.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label37.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 f6a31abd5185b15385b4060783f7e6ebda0d51c801a422158db36fc56fa68a0e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:09:25,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:09:25,136 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:09:25,142 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:09:25,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:09:25,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:09:25,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:09:25,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:09:25,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:09:25,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:09:25,184 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:09:25,185 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:09:25,185 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:09:25,186 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:09:25,188 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:09:25,188 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:09:25,189 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:09:25,189 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:09:25,189 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:09:25,190 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:09:25,190 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:09:25,195 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:09:25,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:09:25,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:09:25,196 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:09:25,196 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:09:25,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:09:25,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:09:25,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:09:25,197 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:09:25,197 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:09:25,197 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:09:25,209 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:09:25,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:09:25,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:09:25,210 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:09:25,211 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:09:25,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:09:25,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:09:25,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:09:25,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:09:25,212 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:09:25,213 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:09:25,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:09:25,213 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:09:25,214 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:09:25,214 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:09:25,214 INFO L153 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_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6a31abd5185b15385b4060783f7e6ebda0d51c801a422158db36fc56fa68a0e [2024-11-09 01:09:25,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:09:25,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:09:25,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:09:25,549 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:09:25,550 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:09:25,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/eca-rers2012/Problem02_label37.c Unable to find full path for "g++" [2024-11-09 01:09:27,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:09:27,889 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:09:27,890 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/sv-benchmarks/c/eca-rers2012/Problem02_label37.c [2024-11-09 01:09:27,904 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/data/9a2e644b9/1e68256272de47f98dd96097fdcef887/FLAG0002638ed [2024-11-09 01:09:27,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/data/9a2e644b9/1e68256272de47f98dd96097fdcef887 [2024-11-09 01:09:27,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:09:27,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:09:27,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:09:27,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:09:27,934 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:09:27,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:09:27" (1/1) ... [2024-11-09 01:09:27,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@709bc25b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:27, skipping insertion in model container [2024-11-09 01:09:27,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:09:27" (1/1) ... [2024-11-09 01:09:27,992 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:09:28,372 WARN L250 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_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/sv-benchmarks/c/eca-rers2012/Problem02_label37.c[19058,19071] [2024-11-09 01:09:28,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:09:28,421 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:09:28,610 WARN L250 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_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/sv-benchmarks/c/eca-rers2012/Problem02_label37.c[19058,19071] [2024-11-09 01:09:28,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:09:28,670 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:09:28,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28 WrapperNode [2024-11-09 01:09:28,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:09:28,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:09:28,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:09:28,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:09:28,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28" (1/1) ... [2024-11-09 01:09:28,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28" (1/1) ... [2024-11-09 01:09:28,757 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2024-11-09 01:09:28,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:09:28,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:09:28,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:09:28,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:09:28,773 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28" (1/1) ... [2024-11-09 01:09:28,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28" (1/1) ... [2024-11-09 01:09:28,783 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28" (1/1) ... [2024-11-09 01:09:28,786 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28" (1/1) ... [2024-11-09 01:09:28,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28" (1/1) ... [2024-11-09 01:09:28,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28" (1/1) ... [2024-11-09 01:09:28,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28" (1/1) ... [2024-11-09 01:09:28,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28" (1/1) ... [2024-11-09 01:09:28,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:09:28,873 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:09:28,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:09:28,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:09:28,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28" (1/1) ... [2024-11-09 01:09:28,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:09:28,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:09:28,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:09:28,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:09:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:09:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:09:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:09:28,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:09:29,051 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:09:29,054 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:09:30,397 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-09 01:09:30,397 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:09:30,696 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:09:30,696 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:09:30,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:09:30 BoogieIcfgContainer [2024-11-09 01:09:30,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:09:30,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:09:30,700 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:09:30,703 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:09:30,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:09:27" (1/3) ... [2024-11-09 01:09:30,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9d0c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:09:30, skipping insertion in model container [2024-11-09 01:09:30,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:09:28" (2/3) ... [2024-11-09 01:09:30,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9d0c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:09:30, skipping insertion in model container [2024-11-09 01:09:30,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:09:30" (3/3) ... [2024-11-09 01:09:30,711 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label37.c [2024-11-09 01:09:30,734 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:09:30,735 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:09:30,814 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:09:30,821 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5b6e55c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:09:30,822 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:09:30,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 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) [2024-11-09 01:09:30,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 01:09:30,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:30,837 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:09:30,838 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:09:30,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:30,844 INFO L85 PathProgramCache]: Analyzing trace with hash -26118187, now seen corresponding path program 1 times [2024-11-09 01:09:30,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:30,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698626208] [2024-11-09 01:09:30,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:30,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:31,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:09:31,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:31,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698626208] [2024-11-09 01:09:31,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698626208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:09:31,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:09:31,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:09:31,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424693862] [2024-11-09 01:09:31,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:09:31,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:09:31,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:31,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:09:31,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:09:31,565 INFO L87 Difference]: Start difference. First operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2024-11-09 01:09:32,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:32,086 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2024-11-09 01:09:32,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:09:32,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2024-11-09 01:09:32,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:32,100 INFO L225 Difference]: With dead ends: 251 [2024-11-09 01:09:32,100 INFO L226 Difference]: Without dead ends: 163 [2024-11-09 01:09:32,103 INFO L431 NwaCegarLoop]: 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 [2024-11-09 01:09:32,107 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 20 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:32,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 55 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:09:32,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-09 01:09:32,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-11-09 01:09:32,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.8395061728395061) internal successors, (298), 162 states have internal predecessors, (298), 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) [2024-11-09 01:09:32,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 298 transitions. [2024-11-09 01:09:32,159 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 298 transitions. Word has length 80 [2024-11-09 01:09:32,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:32,160 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 298 transitions. [2024-11-09 01:09:32,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2024-11-09 01:09:32,160 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 298 transitions. [2024-11-09 01:09:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 01:09:32,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:32,163 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:09:32,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:09:32,164 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:09:32,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:32,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1929496566, now seen corresponding path program 1 times [2024-11-09 01:09:32,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:32,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828369444] [2024-11-09 01:09:32,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:32,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:32,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:09:32,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:32,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828369444] [2024-11-09 01:09:32,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828369444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:09:32,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:09:32,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:09:32,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449218437] [2024-11-09 01:09:32,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:09:32,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:09:32,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:32,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:09:32,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:09:32,569 INFO L87 Difference]: Start difference. First operand 163 states and 298 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 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) [2024-11-09 01:09:33,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:33,085 INFO L93 Difference]: Finished difference Result 485 states and 891 transitions. [2024-11-09 01:09:33,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:09:33,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 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 84 [2024-11-09 01:09:33,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:33,089 INFO L225 Difference]: With dead ends: 485 [2024-11-09 01:09:33,092 INFO L226 Difference]: Without dead ends: 323 [2024-11-09 01:09:33,093 INFO L431 NwaCegarLoop]: 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 [2024-11-09 01:09:33,095 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:33,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 63 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 01:09:33,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-09 01:09:33,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-09 01:09:33,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.515527950310559) internal successors, (488), 322 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:09:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 488 transitions. [2024-11-09 01:09:33,139 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 488 transitions. Word has length 84 [2024-11-09 01:09:33,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:33,140 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 488 transitions. [2024-11-09 01:09:33,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 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) [2024-11-09 01:09:33,140 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 488 transitions. [2024-11-09 01:09:33,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 01:09:33,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:33,148 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:09:33,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:09:33,149 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:09:33,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:33,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1889164624, now seen corresponding path program 1 times [2024-11-09 01:09:33,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:33,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251713101] [2024-11-09 01:09:33,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:33,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:33,578 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:09:33,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:33,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251713101] [2024-11-09 01:09:33,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251713101] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:09:33,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689224811] [2024-11-09 01:09:33,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:33,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:09:33,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:09:33,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:09:33,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:09:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:33,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 01:09:33,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:09:33,962 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 01:09:33,963 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:09:33,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689224811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:09:33,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:09:33,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-09 01:09:33,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245736258] [2024-11-09 01:09:33,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:09:33,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:09:33,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:33,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:09:33,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:09:33,968 INFO L87 Difference]: Start difference. First operand 323 states and 488 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 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) [2024-11-09 01:09:34,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:34,434 INFO L93 Difference]: Finished difference Result 565 states and 880 transitions. [2024-11-09 01:09:34,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:09:34,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-09 01:09:34,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:34,438 INFO L225 Difference]: With dead ends: 565 [2024-11-09 01:09:34,438 INFO L226 Difference]: Without dead ends: 563 [2024-11-09 01:09:34,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:09:34,440 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 53 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:34,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 9 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:09:34,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-09 01:09:34,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 403. [2024-11-09 01:09:34,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 1.599502487562189) internal successors, (643), 402 states have internal predecessors, (643), 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) [2024-11-09 01:09:34,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 643 transitions. [2024-11-09 01:09:34,461 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 643 transitions. Word has length 89 [2024-11-09 01:09:34,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:34,462 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 643 transitions. [2024-11-09 01:09:34,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 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) [2024-11-09 01:09:34,463 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 643 transitions. [2024-11-09 01:09:34,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-09 01:09:34,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:34,466 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:09:34,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 01:09:34,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:09:34,671 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:09:34,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:34,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1696461046, now seen corresponding path program 1 times [2024-11-09 01:09:34,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:34,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395275277] [2024-11-09 01:09:34,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:34,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:34,832 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:09:34,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:34,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395275277] [2024-11-09 01:09:34,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395275277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:09:34,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:09:34,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:09:34,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21415971] [2024-11-09 01:09:34,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:09:34,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:09:34,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:34,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:09:34,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:09:34,838 INFO L87 Difference]: Start difference. First operand 403 states and 643 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2024-11-09 01:09:35,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:35,079 INFO L93 Difference]: Finished difference Result 805 states and 1285 transitions. [2024-11-09 01:09:35,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:09:35,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-09 01:09:35,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:35,082 INFO L225 Difference]: With dead ends: 805 [2024-11-09 01:09:35,082 INFO L226 Difference]: Without dead ends: 403 [2024-11-09 01:09:35,084 INFO L431 NwaCegarLoop]: 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 [2024-11-09 01:09:35,085 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 125 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:35,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 4 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:09:35,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-09 01:09:35,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-09 01:09:35,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 1.462686567164179) internal successors, (588), 402 states have internal predecessors, (588), 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) [2024-11-09 01:09:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 588 transitions. [2024-11-09 01:09:35,116 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 588 transitions. Word has length 91 [2024-11-09 01:09:35,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:35,117 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 588 transitions. [2024-11-09 01:09:35,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2024-11-09 01:09:35,117 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 588 transitions. [2024-11-09 01:09:35,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 01:09:35,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:35,127 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:09:35,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 01:09:35,128 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:09:35,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:35,129 INFO L85 PathProgramCache]: Analyzing trace with hash 507186638, now seen corresponding path program 1 times [2024-11-09 01:09:35,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:35,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542440013] [2024-11-09 01:09:35,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:35,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:35,298 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:09:35,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:35,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542440013] [2024-11-09 01:09:35,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542440013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:09:35,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:09:35,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:09:35,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644653774] [2024-11-09 01:09:35,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:09:35,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:09:35,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:35,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:09:35,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:09:35,305 INFO L87 Difference]: Start difference. First operand 403 states and 588 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-11-09 01:09:35,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:35,727 INFO L93 Difference]: Finished difference Result 885 states and 1350 transitions. [2024-11-09 01:09:35,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:09:35,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2024-11-09 01:09:35,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:35,730 INFO L225 Difference]: With dead ends: 885 [2024-11-09 01:09:35,730 INFO L226 Difference]: Without dead ends: 563 [2024-11-09 01:09:35,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:09:35,732 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 65 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:35,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 118 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:09:35,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-09 01:09:35,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2024-11-09 01:09:35,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 562 states have (on average 1.402135231316726) internal successors, (788), 562 states have internal predecessors, (788), 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) [2024-11-09 01:09:35,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 788 transitions. [2024-11-09 01:09:35,747 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 788 transitions. Word has length 111 [2024-11-09 01:09:35,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:35,748 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 788 transitions. [2024-11-09 01:09:35,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-11-09 01:09:35,748 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 788 transitions. [2024-11-09 01:09:35,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 01:09:35,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:35,750 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:09:35,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 01:09:35,751 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:09:35,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:35,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1111258956, now seen corresponding path program 1 times [2024-11-09 01:09:35,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:35,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281142961] [2024-11-09 01:09:35,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:35,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 01:09:35,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:35,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281142961] [2024-11-09 01:09:35,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281142961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:09:35,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:09:35,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:09:35,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158312874] [2024-11-09 01:09:35,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:09:35,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:09:35,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:35,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:09:35,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:09:35,886 INFO L87 Difference]: Start difference. First operand 563 states and 788 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2024-11-09 01:09:36,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:36,281 INFO L93 Difference]: Finished difference Result 1365 states and 1950 transitions. [2024-11-09 01:09:36,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:09:36,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 116 [2024-11-09 01:09:36,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:36,285 INFO L225 Difference]: With dead ends: 1365 [2024-11-09 01:09:36,285 INFO L226 Difference]: Without dead ends: 883 [2024-11-09 01:09:36,286 INFO L431 NwaCegarLoop]: 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 [2024-11-09 01:09:36,287 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 93 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:36,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 39 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:09:36,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-09 01:09:36,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2024-11-09 01:09:36,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.3412698412698412) internal successors, (1183), 882 states have internal predecessors, (1183), 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) [2024-11-09 01:09:36,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1183 transitions. [2024-11-09 01:09:36,309 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1183 transitions. Word has length 116 [2024-11-09 01:09:36,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:36,310 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1183 transitions. [2024-11-09 01:09:36,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2024-11-09 01:09:36,310 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1183 transitions. [2024-11-09 01:09:36,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 01:09:36,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:09:36,313 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:09:36,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 01:09:36,314 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:09:36,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:09:36,314 INFO L85 PathProgramCache]: Analyzing trace with hash -452101636, now seen corresponding path program 1 times [2024-11-09 01:09:36,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:09:36,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633603577] [2024-11-09 01:09:36,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:09:36,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:09:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:09:36,474 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 01:09:36,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:09:36,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633603577] [2024-11-09 01:09:36,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633603577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:09:36,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:09:36,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:09:36,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115911258] [2024-11-09 01:09:36,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:09:36,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:09:36,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:09:36,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:09:36,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:09:36,477 INFO L87 Difference]: Start difference. First operand 883 states and 1183 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-09 01:09:36,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:09:36,843 INFO L93 Difference]: Finished difference Result 1763 states and 2374 transitions. [2024-11-09 01:09:36,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:09:36,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 135 [2024-11-09 01:09:36,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:09:36,844 INFO L225 Difference]: With dead ends: 1763 [2024-11-09 01:09:36,844 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 01:09:36,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:09:36,847 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 74 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:09:36,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 15 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 01:09:36,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 01:09:36,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 01:09:36,849 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) [2024-11-09 01:09:36,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 01:09:36,849 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2024-11-09 01:09:36,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:09:36,849 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 01:09:36,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-09 01:09:36,850 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 01:09:36,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 01:09:36,853 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 01:09:36,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 01:09:36,858 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:09:36,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 01:09:36,966 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:09:36,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:09:36 BoogieIcfgContainer [2024-11-09 01:09:36,987 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:09:36,988 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:09:36,988 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:09:36,988 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:09:36,989 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:09:30" (3/4) ... [2024-11-09 01:09:36,992 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 01:09:37,008 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 129 nodes and edges [2024-11-09 01:09:37,009 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-09 01:09:37,011 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 01:09:37,012 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 01:09:37,208 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 01:09:37,209 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 01:09:37,209 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:09:37,210 INFO L158 Benchmark]: Toolchain (without parser) took 9284.12ms. Allocated memory was 138.4MB in the beginning and 226.5MB in the end (delta: 88.1MB). Free memory was 100.4MB in the beginning and 62.6MB in the end (delta: 37.8MB). Peak memory consumption was 128.0MB. Max. memory is 16.1GB. [2024-11-09 01:09:37,210 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 138.4MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:09:37,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 744.05ms. Allocated memory is still 138.4MB. Free memory was 100.0MB in the beginning and 71.0MB in the end (delta: 28.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 01:09:37,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.94ms. Allocated memory is still 138.4MB. Free memory was 70.6MB in the beginning and 65.1MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 01:09:37,211 INFO L158 Benchmark]: Boogie Preprocessor took 113.99ms. Allocated memory is still 138.4MB. Free memory was 65.1MB in the beginning and 60.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 01:09:37,211 INFO L158 Benchmark]: RCFGBuilder took 1823.77ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 60.9MB in the beginning and 92.2MB in the end (delta: -31.3MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2024-11-09 01:09:37,212 INFO L158 Benchmark]: TraceAbstraction took 6287.99ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 91.1MB in the beginning and 76.1MB in the end (delta: 15.0MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2024-11-09 01:09:37,212 INFO L158 Benchmark]: Witness Printer took 221.07ms. Allocated memory is still 226.5MB. Free memory was 75.2MB in the beginning and 62.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 01:09:37,214 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 138.4MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 744.05ms. Allocated memory is still 138.4MB. Free memory was 100.0MB in the beginning and 71.0MB in the end (delta: 28.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.94ms. Allocated memory is still 138.4MB. Free memory was 70.6MB in the beginning and 65.1MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 113.99ms. Allocated memory is still 138.4MB. Free memory was 65.1MB in the beginning and 60.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1823.77ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 60.9MB in the beginning and 92.2MB in the end (delta: -31.3MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6287.99ms. Allocated memory was 182.5MB in the beginning and 226.5MB in the end (delta: 44.0MB). Free memory was 91.1MB in the beginning and 76.1MB in the end (delta: 15.0MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. * Witness Printer took 221.07ms. Allocated memory is still 226.5MB. Free memory was 75.2MB in the beginning and 62.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 542]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 508 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 508 mSDsluCounter, 303 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 406 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1516 IncrementalHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 406 mSolverCounterUnsat, 270 mSDtfsCounter, 1516 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=883occurred in iteration=6, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 160 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 795 NumberOfCodeBlocks, 795 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 787 ConstructedInterpolants, 0 QuantifiedInterpolants, 1309 SizeOfPredicates, 0 NumberOfNonLiveVariables, 244 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 196/199 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 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((a17 <= 8) && (a28 <= 10)) || ((a17 == 8) && (a19 == 1))) RESULT: Ultimate proved your program to be correct! [2024-11-09 01:09:37,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e3cc1e0-1327-4d89-81b7-b458e2a9c01d/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE