./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/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_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/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_b6384461-1a63-4303-9469-bfebc5bd4912/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 c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:14:49,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:14:49,783 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:14:49,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:14:49,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:14:49,822 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:14:49,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:14:49,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:14:49,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:14:49,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:14:49,825 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:14:49,825 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:14:49,826 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:14:49,826 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:14:49,827 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:14:49,827 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:14:49,828 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:14:49,828 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:14:49,829 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:14:49,829 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:14:49,829 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:14:49,832 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:14:49,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:14:49,834 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:14:49,834 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:14:49,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:14:49,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:14:49,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:14:49,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:14:49,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:14:49,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:14:49,841 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:14:49,841 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:14:49,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:14:49,842 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:14:49,842 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:14:49,842 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:14:49,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:14:49,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:14:49,848 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:14:49,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:14:49,849 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:14:49,849 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:14:49,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:14:49,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:14:49,851 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:14:49,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:14:49,852 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_b6384461-1a63-4303-9469-bfebc5bd4912/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 [2024-11-09 01:14:50,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:14:50,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:14:50,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:14:50,203 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:14:50,204 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:14:50,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i Unable to find full path for "g++" [2024-11-09 01:14:52,583 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:14:52,861 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:14:52,861 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2024-11-09 01:14:52,869 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/data/588d4dea7/ddb610c4319949ca8d92a7de0be32906/FLAG4a25b4319 [2024-11-09 01:14:52,893 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/data/588d4dea7/ddb610c4319949ca8d92a7de0be32906 [2024-11-09 01:14:52,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:14:52,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:14:52,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:14:52,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:14:52,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:14:52,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:14:52" (1/1) ... [2024-11-09 01:14:52,915 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e872a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:52, skipping insertion in model container [2024-11-09 01:14:52,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:14:52" (1/1) ... [2024-11-09 01:14:52,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:14:53,165 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_b6384461-1a63-4303-9469-bfebc5bd4912/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2024-11-09 01:14:53,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:14:53,191 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:14:53,209 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_b6384461-1a63-4303-9469-bfebc5bd4912/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2024-11-09 01:14:53,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:14:53,233 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:14:53,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53 WrapperNode [2024-11-09 01:14:53,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:14:53,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:14:53,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:14:53,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:14:53,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53" (1/1) ... [2024-11-09 01:14:53,253 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53" (1/1) ... [2024-11-09 01:14:53,273 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2024-11-09 01:14:53,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:14:53,274 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:14:53,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:14:53,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:14:53,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53" (1/1) ... [2024-11-09 01:14:53,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53" (1/1) ... [2024-11-09 01:14:53,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53" (1/1) ... [2024-11-09 01:14:53,289 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53" (1/1) ... [2024-11-09 01:14:53,292 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53" (1/1) ... [2024-11-09 01:14:53,296 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53" (1/1) ... [2024-11-09 01:14:53,297 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53" (1/1) ... [2024-11-09 01:14:53,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53" (1/1) ... [2024-11-09 01:14:53,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:14:53,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:14:53,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:14:53,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:14:53,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53" (1/1) ... [2024-11-09 01:14:53,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:14:53,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:14:53,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:14:53,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:14:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:14:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:14:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:14:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:14:53,489 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:14:53,494 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:14:53,677 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 01:14:53,677 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:14:53,714 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:14:53,714 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 01:14:53,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:14:53 BoogieIcfgContainer [2024-11-09 01:14:53,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:14:53,726 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:14:53,727 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:14:53,731 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:14:53,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:14:52" (1/3) ... [2024-11-09 01:14:53,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bddd26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:14:53, skipping insertion in model container [2024-11-09 01:14:53,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:14:53" (2/3) ... [2024-11-09 01:14:53,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21bddd26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:14:53, skipping insertion in model container [2024-11-09 01:14:53,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:14:53" (3/3) ... [2024-11-09 01:14:53,740 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark23_conjunctive.i [2024-11-09 01:14:53,767 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:14:53,768 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:14:53,842 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:14:53,850 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;@7983bb34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:14:53,850 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:14:53,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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 01:14:53,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 01:14:53,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:53,863 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 01:14:53,863 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:14:53,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:53,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1839286506, now seen corresponding path program 1 times [2024-11-09 01:14:53,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:14:53,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696964635] [2024-11-09 01:14:53,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:53,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:14:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:54,110 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 01:14:54,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:14:54,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696964635] [2024-11-09 01:14:54,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696964635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:14:54,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:14:54,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:14:54,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695396238] [2024-11-09 01:14:54,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:14:54,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:14:54,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:14:54,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:14:54,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:14:54,156 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:14:54,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:14:54,206 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2024-11-09 01:14:54,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:14:54,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 01:14:54,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:14:54,217 INFO L225 Difference]: With dead ends: 20 [2024-11-09 01:14:54,217 INFO L226 Difference]: Without dead ends: 10 [2024-11-09 01:14:54,220 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 01:14:54,224 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:14:54,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 14 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:14:54,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-09 01:14:54,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-11-09 01:14:54,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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 01:14:54,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2024-11-09 01:14:54,262 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2024-11-09 01:14:54,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:14:54,262 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2024-11-09 01:14:54,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:14:54,263 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2024-11-09 01:14:54,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 01:14:54,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:54,264 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:14:54,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:14:54,264 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:14:54,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:54,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2118523407, now seen corresponding path program 1 times [2024-11-09 01:14:54,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:14:54,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827344500] [2024-11-09 01:14:54,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:54,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:14:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:54,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:14:54,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827344500] [2024-11-09 01:14:54,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827344500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:14:54,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116556607] [2024-11-09 01:14:54,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:54,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:14:54,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:14:54,390 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:14:54,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:14:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:54,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:14:54,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:14:54,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:54,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:14:54,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:54,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116556607] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:14:54,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [401767876] [2024-11-09 01:14:54,585 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-09 01:14:54,585 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:14:54,591 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:14:54,598 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:14:54,599 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:14:54,990 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:14:55,294 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '101#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-09 01:14:55,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:14:55,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:14:55,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-09 01:14:55,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350193200] [2024-11-09 01:14:55,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:14:55,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:14:55,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:14:55,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:14:55,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-09 01:14:55,302 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 01:14:55,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:14:55,352 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2024-11-09 01:14:55,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:14:55,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 01:14:55,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:14:55,355 INFO L225 Difference]: With dead ends: 19 [2024-11-09 01:14:55,356 INFO L226 Difference]: Without dead ends: 15 [2024-11-09 01:14:55,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-09 01:14:55,359 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:14:55,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:14:55,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-09 01:14:55,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-09 01:14:55,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 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) [2024-11-09 01:14:55,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-09 01:14:55,369 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2024-11-09 01:14:55,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:14:55,369 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-09 01:14:55,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 01:14:55,371 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-09 01:14:55,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 01:14:55,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:55,372 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1] [2024-11-09 01:14:55,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 01:14:55,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:14:55,577 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:14:55,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:55,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1008963070, now seen corresponding path program 2 times [2024-11-09 01:14:55,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:14:55,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716144828] [2024-11-09 01:14:55,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:55,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:14:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:55,741 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:55,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:14:55,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716144828] [2024-11-09 01:14:55,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716144828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:14:55,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471872890] [2024-11-09 01:14:55,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:14:55,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:14:55,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:14:55,745 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:14:55,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:14:55,816 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 01:14:55,817 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:14:55,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:14:55,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:14:55,865 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:55,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:14:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:55,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471872890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:14:55,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [113581126] [2024-11-09 01:14:55,977 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-09 01:14:55,978 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:14:55,978 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:14:55,978 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:14:55,979 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:14:56,198 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:14:56,498 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '241#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-09 01:14:56,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:14:56,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:14:56,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-09 01:14:56,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752609110] [2024-11-09 01:14:56,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:14:56,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 01:14:56,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:14:56,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 01:14:56,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-09 01:14:56,502 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:14:56,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:14:56,559 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2024-11-09 01:14:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 01:14:56,560 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 01:14:56,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:14:56,561 INFO L225 Difference]: With dead ends: 31 [2024-11-09 01:14:56,561 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 01:14:56,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-09 01:14:56,563 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:14:56,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:14:56,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 01:14:56,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 01:14:56,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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 01:14:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2024-11-09 01:14:56,571 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2024-11-09 01:14:56,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:14:56,571 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2024-11-09 01:14:56,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:14:56,572 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2024-11-09 01:14:56,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 01:14:56,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:56,573 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1] [2024-11-09 01:14:56,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 01:14:56,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:14:56,778 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:14:56,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:56,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1838409700, now seen corresponding path program 3 times [2024-11-09 01:14:56,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:14:56,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907845377] [2024-11-09 01:14:56,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:56,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:14:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:57,183 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:57,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:14:57,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907845377] [2024-11-09 01:14:57,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907845377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:14:57,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184488165] [2024-11-09 01:14:57,186 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:14:57,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:14:57,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:14:57,189 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:14:57,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 01:14:57,270 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:14:57,270 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:14:57,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:14:57,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:14:57,359 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:57,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:14:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:57,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184488165] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:14:57,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1099989475] [2024-11-09 01:14:57,757 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-09 01:14:57,757 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:14:57,758 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:14:57,758 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:14:57,758 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:14:57,903 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:14:58,242 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '501#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-09 01:14:58,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:14:58,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:14:58,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2024-11-09 01:14:58,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686962345] [2024-11-09 01:14:58,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:14:58,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 01:14:58,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:14:58,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 01:14:58,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=576, Unknown=0, NotChecked=0, Total=870 [2024-11-09 01:14:58,248 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 24 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 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 01:14:58,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:14:58,388 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2024-11-09 01:14:58,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 01:14:58,390 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 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 26 [2024-11-09 01:14:58,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:14:58,391 INFO L225 Difference]: With dead ends: 55 [2024-11-09 01:14:58,392 INFO L226 Difference]: Without dead ends: 51 [2024-11-09 01:14:58,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=294, Invalid=576, Unknown=0, NotChecked=0, Total=870 [2024-11-09 01:14:58,396 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:14:58,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 20 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:14:58,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-09 01:14:58,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-09 01:14:58,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 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 01:14:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2024-11-09 01:14:58,415 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 26 [2024-11-09 01:14:58,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:14:58,415 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2024-11-09 01:14:58,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.0) internal successors, (48), 24 states have internal predecessors, (48), 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 01:14:58,416 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2024-11-09 01:14:58,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 01:14:58,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:58,419 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1] [2024-11-09 01:14:58,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 01:14:58,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:14:58,621 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:14:58,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:58,622 INFO L85 PathProgramCache]: Analyzing trace with hash -687606440, now seen corresponding path program 4 times [2024-11-09 01:14:58,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:14:58,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003698104] [2024-11-09 01:14:58,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:58,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:14:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:59,496 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:59,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:14:59,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003698104] [2024-11-09 01:14:59,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003698104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:14:59,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227675682] [2024-11-09 01:14:59,497 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 01:14:59,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:14:59,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:14:59,502 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:14:59,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 01:14:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:59,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 01:14:59,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:14:59,684 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:59,684 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:15:00,711 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:00,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227675682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:15:00,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [299100670] [2024-11-09 01:15:00,714 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-09 01:15:00,714 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:15:00,715 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:15:00,715 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:15:00,715 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:15:00,816 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:15:01,093 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1001#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-09 01:15:01,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:15:01,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:15:01,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2024-11-09 01:15:01,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756965294] [2024-11-09 01:15:01,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:15:01,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-09 01:15:01,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:15:01,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-09 01:15:01,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1146, Invalid=1716, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 01:15:01,101 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 48 states, 48 states have (on average 2.0) internal successors, (96), 48 states have internal predecessors, (96), 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 01:15:01,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:15:01,317 INFO L93 Difference]: Finished difference Result 103 states and 126 transitions. [2024-11-09 01:15:01,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-09 01:15:01,318 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.0) internal successors, (96), 48 states have internal predecessors, (96), 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 50 [2024-11-09 01:15:01,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:15:01,319 INFO L225 Difference]: With dead ends: 103 [2024-11-09 01:15:01,319 INFO L226 Difference]: Without dead ends: 99 [2024-11-09 01:15:01,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1146, Invalid=1716, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 01:15:01,321 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:15:01,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:15:01,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-09 01:15:01,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-09 01:15:01,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.010204081632653) internal successors, (99), 98 states have internal predecessors, (99), 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 01:15:01,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2024-11-09 01:15:01,336 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 50 [2024-11-09 01:15:01,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:15:01,336 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2024-11-09 01:15:01,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.0) internal successors, (96), 48 states have internal predecessors, (96), 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 01:15:01,337 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2024-11-09 01:15:01,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 01:15:01,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:15:01,342 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 1, 1, 1, 1, 1, 1] [2024-11-09 01:15:01,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 01:15:01,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:15:01,543 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:15:01,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:15:01,543 INFO L85 PathProgramCache]: Analyzing trace with hash -47131696, now seen corresponding path program 5 times [2024-11-09 01:15:01,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:15:01,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432428718] [2024-11-09 01:15:01,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:15:01,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:15:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:15:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:03,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:15:03,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432428718] [2024-11-09 01:15:03,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432428718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:15:03,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673336448] [2024-11-09 01:15:03,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:15:03,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:15:03,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:15:03,753 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:15:03,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 01:15:03,895 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2024-11-09 01:15:03,895 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:15:03,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-09 01:15:03,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:15:04,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:04,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:15:07,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:07,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673336448] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:15:07,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [946867803] [2024-11-09 01:15:07,498 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-09 01:15:07,498 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:15:07,500 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:15:07,501 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:15:07,501 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:15:07,598 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:15:07,963 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1981#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-09 01:15:07,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:15:07,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:15:07,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 96 [2024-11-09 01:15:07,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859851217] [2024-11-09 01:15:07,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:15:07,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-09 01:15:07,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:15:07,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-09 01:15:07,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4578, Invalid=5724, Unknown=0, NotChecked=0, Total=10302 [2024-11-09 01:15:07,972 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand has 96 states, 96 states have (on average 2.0) internal successors, (192), 96 states have internal predecessors, (192), 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 01:15:08,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:15:08,424 INFO L93 Difference]: Finished difference Result 199 states and 246 transitions. [2024-11-09 01:15:08,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-09 01:15:08,425 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 2.0) internal successors, (192), 96 states have internal predecessors, (192), 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 98 [2024-11-09 01:15:08,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:15:08,428 INFO L225 Difference]: With dead ends: 199 [2024-11-09 01:15:08,428 INFO L226 Difference]: Without dead ends: 195 [2024-11-09 01:15:08,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=4578, Invalid=5724, Unknown=0, NotChecked=0, Total=10302 [2024-11-09 01:15:08,433 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:15:08,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 01:15:08,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-09 01:15:08,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-11-09 01:15:08,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 1.0051546391752577) internal successors, (195), 194 states have internal predecessors, (195), 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 01:15:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 195 transitions. [2024-11-09 01:15:08,459 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 195 transitions. Word has length 98 [2024-11-09 01:15:08,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:15:08,460 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 195 transitions. [2024-11-09 01:15:08,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 2.0) internal successors, (192), 96 states have internal predecessors, (192), 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 01:15:08,460 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 195 transitions. [2024-11-09 01:15:08,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-09 01:15:08,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:15:08,471 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 1, 1, 1, 1, 1, 1] [2024-11-09 01:15:08,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 01:15:08,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:15:08,672 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:15:08,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:15:08,672 INFO L85 PathProgramCache]: Analyzing trace with hash 177152192, now seen corresponding path program 6 times [2024-11-09 01:15:08,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:15:08,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650555912] [2024-11-09 01:15:08,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:15:08,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:15:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:15:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:16,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:15:16,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650555912] [2024-11-09 01:15:16,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650555912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:15:16,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10676571] [2024-11-09 01:15:16,023 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 01:15:16,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:15:16,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:15:16,024 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:15:16,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 01:15:16,189 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 01:15:16,189 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:15:16,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-09 01:15:16,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:15:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:16,697 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:15:22,333 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:22,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10676571] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:15:22,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1095522899] [2024-11-09 01:15:22,336 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-09 01:15:22,336 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:15:22,336 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:15:22,336 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:15:22,336 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:15:22,418 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:15:23,090 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3831#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-09 01:15:23,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:15:23,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:15:23,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 102 [2024-11-09 01:15:23,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820163587] [2024-11-09 01:15:23,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:15:23,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2024-11-09 01:15:23,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:15:23,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2024-11-09 01:15:23,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5169, Invalid=6387, Unknown=0, NotChecked=0, Total=11556 [2024-11-09 01:15:23,098 INFO L87 Difference]: Start difference. First operand 195 states and 195 transitions. Second operand has 102 states, 102 states have (on average 2.019607843137255) internal successors, (206), 102 states have internal predecessors, (206), 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 01:15:23,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:15:23,567 INFO L93 Difference]: Finished difference Result 211 states and 216 transitions. [2024-11-09 01:15:23,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-11-09 01:15:23,567 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 2.019607843137255) internal successors, (206), 102 states have internal predecessors, (206), 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 194 [2024-11-09 01:15:23,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:15:23,570 INFO L225 Difference]: With dead ends: 211 [2024-11-09 01:15:23,570 INFO L226 Difference]: Without dead ends: 207 [2024-11-09 01:15:23,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 481 SyntacticMatches, 90 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5075 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=5169, Invalid=6387, Unknown=0, NotChecked=0, Total=11556 [2024-11-09 01:15:23,574 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 1 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:15:23,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 20 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 01:15:23,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-09 01:15:23,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-11-09 01:15:23,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.0048543689320388) internal successors, (207), 206 states have internal predecessors, (207), 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 01:15:23,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 207 transitions. [2024-11-09 01:15:23,595 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 207 transitions. Word has length 194 [2024-11-09 01:15:23,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:15:23,597 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 207 transitions. [2024-11-09 01:15:23,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 2.019607843137255) internal successors, (206), 102 states have internal predecessors, (206), 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 01:15:23,598 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 207 transitions. [2024-11-09 01:15:23,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-09 01:15:23,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:15:23,601 INFO L215 NwaCegarLoop]: trace histogram [100, 100, 1, 1, 1, 1, 1, 1] [2024-11-09 01:15:23,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 01:15:23,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:15:23,802 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:15:23,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:15:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1856530466, now seen corresponding path program 7 times [2024-11-09 01:15:23,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:15:23,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121508086] [2024-11-09 01:15:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:15:23,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:15:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:15:32,508 INFO L134 CoverageAnalysis]: Checked inductivity of 10000 backedges. 0 proven. 10000 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:32,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:15:32,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121508086] [2024-11-09 01:15:32,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121508086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:15:32,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270650284] [2024-11-09 01:15:32,509 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 01:15:32,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:15:32,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:15:32,511 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:15:32,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 01:15:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:15:32,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 205 conjuncts are in the unsatisfiable core [2024-11-09 01:15:32,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:15:33,140 INFO L134 CoverageAnalysis]: Checked inductivity of 10000 backedges. 0 proven. 10000 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:33,140 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:15:33,641 INFO L134 CoverageAnalysis]: Checked inductivity of 10000 backedges. 0 proven. 10000 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:33,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270650284] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:15:33,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1048892723] [2024-11-09 01:15:33,644 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-09 01:15:33,644 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:15:33,645 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:15:33,645 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:15:33,645 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:15:33,717 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:15:34,857 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5792#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-09 01:15:34,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 01:15:34,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:15:34,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 104, 104] total 105 [2024-11-09 01:15:34,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356932039] [2024-11-09 01:15:34,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 01:15:34,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2024-11-09 01:15:34,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:15:34,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2024-11-09 01:15:34,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=11984, Unknown=0, NotChecked=0, Total=12210 [2024-11-09 01:15:34,864 INFO L87 Difference]: Start difference. First operand 207 states and 207 transitions. Second operand has 105 states, 105 states have (on average 1.980952380952381) internal successors, (208), 105 states have internal predecessors, (208), 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 01:15:40,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:15:40,911 INFO L93 Difference]: Finished difference Result 214 states and 214 transitions. [2024-11-09 01:15:40,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2024-11-09 01:15:40,912 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 1.980952380952381) internal successors, (208), 105 states have internal predecessors, (208), 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 206 [2024-11-09 01:15:40,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:15:40,914 INFO L225 Difference]: With dead ends: 214 [2024-11-09 01:15:40,914 INFO L226 Difference]: Without dead ends: 210 [2024-11-09 01:15:40,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 610 SyntacticMatches, 1 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=226, Invalid=11984, Unknown=0, NotChecked=0, Total=12210 [2024-11-09 01:15:40,919 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 1 mSDsluCounter, 10507 mSDsCounter, 0 mSdLazyCounter, 10610 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10612 SdHoareTripleChecker+Invalid, 10610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:15:40,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10612 Invalid, 10610 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 10610 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-09 01:15:40,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-09 01:15:40,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2024-11-09 01:15:40,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.0048076923076923) internal successors, (209), 208 states have internal predecessors, (209), 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 01:15:40,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 209 transitions. [2024-11-09 01:15:40,935 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 209 transitions. Word has length 206 [2024-11-09 01:15:40,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:15:40,936 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 209 transitions. [2024-11-09 01:15:40,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 1.980952380952381) internal successors, (208), 105 states have internal predecessors, (208), 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 01:15:40,937 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 209 transitions. [2024-11-09 01:15:40,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-09 01:15:40,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:15:40,939 INFO L215 NwaCegarLoop]: trace histogram [101, 101, 1, 1, 1, 1, 1, 1] [2024-11-09 01:15:40,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 01:15:41,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:15:41,140 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:15:41,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:15:41,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1918600189, now seen corresponding path program 8 times [2024-11-09 01:15:41,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:15:41,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852000164] [2024-11-09 01:15:41,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:15:41,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:15:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:15:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 10201 backedges. 10201 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:15:49,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:15:49,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852000164] [2024-11-09 01:15:49,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852000164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:15:49,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:15:49,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [] total 103 [2024-11-09 01:15:49,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164565119] [2024-11-09 01:15:49,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:15:49,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2024-11-09 01:15:49,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:15:49,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2024-11-09 01:15:49,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2024-11-09 01:15:49,501 INFO L87 Difference]: Start difference. First operand 209 states and 209 transitions. Second operand has 103 states, 103 states have (on average 2.0194174757281553) internal successors, (208), 103 states have internal predecessors, (208), 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 01:15:50,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:15:50,537 INFO L93 Difference]: Finished difference Result 209 states and 209 transitions. [2024-11-09 01:15:50,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2024-11-09 01:15:50,538 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 2.0194174757281553) internal successors, (208), 103 states have internal predecessors, (208), 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 208 [2024-11-09 01:15:50,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:15:50,539 INFO L225 Difference]: With dead ends: 209 [2024-11-09 01:15:50,539 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 01:15:50,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2024-11-09 01:15:50,542 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:15:50,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 01:15:50,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 01:15:50,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 01:15:50,544 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 01:15:50,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 01:15:50,544 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 208 [2024-11-09 01:15:50,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:15:50,544 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 01:15:50,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 2.0194174757281553) internal successors, (208), 103 states have internal predecessors, (208), 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 01:15:50,545 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 01:15:50,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 01:15:50,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 01:15:50,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 01:15:50,554 INFO L407 BasicCegarLoop]: Path program histogram: [8, 1] [2024-11-09 01:15:50,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 01:15:52,720 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:15:52,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:15:52 BoogieIcfgContainer [2024-11-09 01:15:52,820 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:15:52,821 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:15:52,821 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:15:52,821 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:15:52,822 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:14:53" (3/4) ... [2024-11-09 01:15:52,826 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 01:15:52,838 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-09 01:15:52,848 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 01:15:52,848 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 01:15:52,848 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 01:15:52,973 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 01:15:52,974 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 01:15:52,974 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:15:52,974 INFO L158 Benchmark]: Toolchain (without parser) took 60076.56ms. Allocated memory was 155.2MB in the beginning and 564.1MB in the end (delta: 408.9MB). Free memory was 118.3MB in the beginning and 385.6MB in the end (delta: -267.3MB). Peak memory consumption was 143.1MB. Max. memory is 16.1GB. [2024-11-09 01:15:52,975 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 104.9MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:15:52,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.70ms. Allocated memory is still 155.2MB. Free memory was 118.3MB in the beginning and 105.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 01:15:52,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.56ms. Allocated memory is still 155.2MB. Free memory was 105.7MB in the beginning and 104.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:15:52,977 INFO L158 Benchmark]: Boogie Preprocessor took 26.68ms. Allocated memory is still 155.2MB. Free memory was 104.4MB in the beginning and 103.6MB in the end (delta: 777.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:15:52,977 INFO L158 Benchmark]: RCFGBuilder took 413.57ms. Allocated memory is still 155.2MB. Free memory was 103.6MB in the beginning and 92.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 01:15:52,977 INFO L158 Benchmark]: TraceAbstraction took 59094.14ms. Allocated memory was 155.2MB in the beginning and 564.1MB in the end (delta: 408.9MB). Free memory was 91.8MB in the beginning and 392.9MB in the end (delta: -301.1MB). Peak memory consumption was 308.8MB. Max. memory is 16.1GB. [2024-11-09 01:15:52,978 INFO L158 Benchmark]: Witness Printer took 152.77ms. Allocated memory is still 564.1MB. Free memory was 391.9MB in the beginning and 385.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 01:15:52,980 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 104.9MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.70ms. Allocated memory is still 155.2MB. Free memory was 118.3MB in the beginning and 105.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.56ms. Allocated memory is still 155.2MB. Free memory was 105.7MB in the beginning and 104.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.68ms. Allocated memory is still 155.2MB. Free memory was 104.4MB in the beginning and 103.6MB in the end (delta: 777.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 413.57ms. Allocated memory is still 155.2MB. Free memory was 103.6MB in the beginning and 92.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 59094.14ms. Allocated memory was 155.2MB in the beginning and 564.1MB in the end (delta: 408.9MB). Free memory was 91.8MB in the beginning and 392.9MB in the end (delta: -301.1MB). Peak memory consumption was 308.8MB. Max. memory is 16.1GB. * Witness Printer took 152.77ms. Allocated memory is still 564.1MB. Free memory was 391.9MB in the beginning and 385.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: 16]: 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.7s, OverallIterations: 9, TraceHistogramMax: 101, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 7.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 10726 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10581 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12216 IncrementalHoareTripleChecker+Invalid, 12231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 145 mSDtfsCounter, 12216 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2179 GetRequests, 1565 SyntacticMatches, 91 SemanticMatches, 523 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6617 ImplicationChecksByTransitivity, 30.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=8, InterpolantAutomatonStates: 498, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 40.2s InterpolantComputationTime, 1406 NumberOfCodeBlocks, 1406 NumberOfCodeBlocksAsserted, 68 NumberOfCheckSat, 1979 ConstructedInterpolants, 0 QuantifiedInterpolants, 5762 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1893 ConjunctsInSsa, 394 ConjunctsInUnsatCore, 23 InterpolantComputations, 2 PerfectInterpolantSequences, 10201/74860 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: 23]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((j == 124) && (62 == i)) || ((i == 11) && (22 == j))) || ((76 == j) && (i == 38))) || ((41 == i) && (82 == j))) || ((94 == i) && (j == 188))) || ((i == 15) && (30 == j))) || ((i == 63) && (j == 126))) || ((23 == i) && (46 == j))) || ((j == 80) && (40 == i))) || ((134 == j) && (67 == i))) || ((154 == j) && (77 == i))) || ((9 == i) && (j == 18))) || ((i == 4) && (j == 8))) || ((j == 166) && (i == 83))) || ((j == 12) && (6 == i))) || ((88 == i) && (176 == j))) || ((88 == j) && (44 == i))) || ((i == 26) && (52 == j))) || ((i == 39) && (j == 78))) || ((68 == j) && (i == 34))) || ((7 == i) && (14 == j))) || ((32 == j) && (16 == i))) || ((i == 93) && (j == 186))) || ((j == 180) && (i == 90))) || ((j == 26) && (i == 13))) || ((42 == i) && (84 == j))) || ((j == 38) && (19 == i))) || ((68 == i) && (j == 136))) || ((40 == j) && (i == 20))) || ((71 == i) && (142 == j))) || ((i == 8) && (16 == j))) || ((100 <= i) && (200 == j))) || ((56 == i) && (112 == j))) || ((2 == j) && (i == 1))) || ((91 == i) && (j == 182))) || ((156 == j) && (i == 78))) || ((35 == i) && (j == 70))) || ((j == 100) && (i == 50))) || ((j == 50) && (i == 25))) || ((i == 0) && (j == 0))) || ((j == 198) && (i == 99))) || ((108 == j) && (i == 54))) || ((i == 96) && (192 == j))) || ((j == 90) && (i == 45))) || ((144 == j) && (72 == i))) || ((57 == i) && (j == 114))) || ((i == 80) && (160 == j))) || ((i == 79) && (158 == j))) || ((190 == j) && (95 == i))) || ((i == 43) && (j == 86))) || ((j == 60) && (30 == i))) || ((46 == i) && (92 == j))) || ((106 == j) && (53 == i))) || ((i == 33) && (66 == j))) || ((i == 86) && (j == 172))) || ((64 == j) && (32 == i))) || ((i == 60) && (j == 120))) || ((5 == i) && (j == 10))) || ((j == 162) && (81 == i))) || ((29 == i) && (j == 58))) || ((14 == i) && (j == 28))) || ((94 == j) && (47 == i))) || ((i == 28) && (56 == j))) || ((62 == j) && (31 == i))) || ((194 == j) && (97 == i))) || ((i == 55) && (110 == j))) || ((j == 54) && (i == 27))) || ((j == 102) && (51 == i))) || ((164 == j) && (82 == i))) || ((138 == j) && (69 == i))) || ((64 == i) && (j == 128))) || ((j == 130) && (i == 65))) || ((i == 61) && (j == 122))) || ((6 == j) && (3 == i))) || ((104 == j) && (52 == i))) || ((98 == j) && (49 == i))) || ((j == 36) && (i == 18))) || ((196 == j) && (98 == i))) || ((i == 85) && (170 == j))) || ((i == 24) && (j == 48))) || ((152 == j) && (76 == i))) || ((i == 17) && (j == 34))) || ((j == 20) && (i == 10))) || ((66 == i) && (j == 132))) || ((i == 12) && (j == 24))) || ((j == 168) && (84 == i))) || ((i == 70) && (140 == j))) || ((92 == i) && (184 == j))) || ((j == 96) && (i == 48))) || ((j == 4) && (2 == i))) || ((21 == i) && (42 == j))) || ((22 == i) && (44 == j))) || ((146 == j) && (i == 73))) || ((116 == j) && (i == 58))) || ((178 == j) && (89 == i))) || ((i == 37) && (j == 74))) || ((i == 75) && (j == 150))) || ((i == 74) && (148 == j))) || ((i == 36) && (72 == j))) || ((87 == i) && (j == 174))) || ((j == 118) && (59 == i))) RESULT: Ultimate proved your program to be correct! [2024-11-09 01:15:53,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6384461-1a63-4303-9469-bfebc5bd4912/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE