./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/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_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 92be10af768295be2ee9c176bac2a7de85c1afeb202e4b441d20022190d8e93f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:20:58,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:20:58,327 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:20:58,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:20:58,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:20:58,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:20:58,398 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:20:58,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:20:58,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:20:58,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:20:58,400 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:20:58,400 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:20:58,403 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:20:58,404 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:20:58,404 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:20:58,404 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:20:58,405 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:20:58,405 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:20:58,406 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:20:58,406 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:20:58,411 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:20:58,412 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:20:58,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:20:58,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:20:58,417 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:20:58,417 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:20:58,418 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:20:58,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:20:58,419 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:20:58,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:20:58,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:20:58,424 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:20:58,439 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:20:58,440 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:20:58,440 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:20:58,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:20:58,442 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:20:58,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:20:58,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:20:58,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:20:58,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:20:58,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:20:58,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:20:58,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:20:58,446 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:20:58,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:20:58,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:20:58,447 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:20:58,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:20:58,448 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_9277b1d9-ffe0-446f-9567-1dfcfb91883e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92be10af768295be2ee9c176bac2a7de85c1afeb202e4b441d20022190d8e93f [2024-11-09 05:20:58,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:20:58,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:20:58,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:20:58,891 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:20:58,894 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:20:58,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.UNBOUNDED.pals.c Unable to find full path for "g++" [2024-11-09 05:21:01,427 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:21:01,697 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:21:01,698 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/sv-benchmarks/c/seq-mthreaded/pals_lcr.3.ufo.UNBOUNDED.pals.c [2024-11-09 05:21:01,711 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/data/7bffe09d0/1d003fe2f2f5400a9ed0096f53c697e3/FLAGf4e6069f5 [2024-11-09 05:21:02,035 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/data/7bffe09d0/1d003fe2f2f5400a9ed0096f53c697e3 [2024-11-09 05:21:02,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:21:02,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:21:02,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:21:02,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:21:02,055 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:21:02,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a62c0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02, skipping insertion in model container [2024-11-09 05:21:02,059 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,125 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:21:02,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:21:02,581 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:21:02,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:21:02,683 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:21:02,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02 WrapperNode [2024-11-09 05:21:02,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:21:02,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:21:02,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:21:02,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:21:02,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,764 INFO L138 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 236 [2024-11-09 05:21:02,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:21:02,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:21:02,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:21:02,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:21:02,779 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,783 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,783 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,800 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:21:02,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:21:02,808 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:21:02,808 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:21:02,809 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02" (1/1) ... [2024-11-09 05:21:02,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:21:02,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:02,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:21:02,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:21:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:21:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:21:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:21:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:21:03,037 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:21:03,042 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:21:03,642 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-09 05:21:03,646 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:21:04,122 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:21:04,123 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:21:04,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:21:04 BoogieIcfgContainer [2024-11-09 05:21:04,124 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:21:04,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:21:04,129 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:21:04,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:21:04,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:21:02" (1/3) ... [2024-11-09 05:21:04,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca0a8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:21:04, skipping insertion in model container [2024-11-09 05:21:04,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:02" (2/3) ... [2024-11-09 05:21:04,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca0a8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:21:04, skipping insertion in model container [2024-11-09 05:21:04,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:21:04" (3/3) ... [2024-11-09 05:21:04,138 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c [2024-11-09 05:21:04,163 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:21:04,163 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-09 05:21:04,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:21:04,268 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;@29a7fd93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:21:04,268 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-09 05:21:04,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 37 states have internal predecessors, (43), 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 05:21:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:21:04,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:04,286 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:21:04,287 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 05:21:04,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:04,297 INFO L85 PathProgramCache]: Analyzing trace with hash 11531134, now seen corresponding path program 1 times [2024-11-09 05:21:04,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:04,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473676697] [2024-11-09 05:21:04,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:04,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:05,121 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 05:21:05,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:05,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473676697] [2024-11-09 05:21:05,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473676697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:05,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:05,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:21:05,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208201519] [2024-11-09 05:21:05,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:05,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:21:05,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:05,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:21:05,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:05,166 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.8695652173913044) internal successors, (43), 37 states have internal predecessors, (43), 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 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:05,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:05,271 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2024-11-09 05:21:05,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:21:05,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 05:21:05,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:05,290 INFO L225 Difference]: With dead ends: 104 [2024-11-09 05:21:05,291 INFO L226 Difference]: Without dead ends: 67 [2024-11-09 05:21:05,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:05,301 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 34 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:05,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 97 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:21:05,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-09 05:21:05,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2024-11-09 05:21:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 54 states have internal predecessors, (76), 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 05:21:05,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 76 transitions. [2024-11-09 05:21:05,361 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 76 transitions. Word has length 4 [2024-11-09 05:21:05,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:05,362 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 76 transitions. [2024-11-09 05:21:05,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:05,362 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 76 transitions. [2024-11-09 05:21:05,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 05:21:05,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:05,364 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 05:21:05,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:21:05,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 05:21:05,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:05,368 INFO L85 PathProgramCache]: Analyzing trace with hash 357317644, now seen corresponding path program 1 times [2024-11-09 05:21:05,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:05,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270661161] [2024-11-09 05:21:05,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:05,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:05,906 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 05:21:05,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:05,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270661161] [2024-11-09 05:21:05,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270661161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:05,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:05,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:21:05,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926679454] [2024-11-09 05:21:05,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:05,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:21:05,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:05,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:21:05,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:05,916 INFO L87 Difference]: Start difference. First operand 55 states and 76 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:06,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:06,111 INFO L93 Difference]: Finished difference Result 89 states and 118 transitions. [2024-11-09 05:21:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:21:06,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-09 05:21:06,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:06,114 INFO L225 Difference]: With dead ends: 89 [2024-11-09 05:21:06,115 INFO L226 Difference]: Without dead ends: 86 [2024-11-09 05:21:06,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:06,117 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 34 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:06,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 24 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:21:06,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-09 05:21:06,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 71. [2024-11-09 05:21:06,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 59 states have (on average 1.728813559322034) internal successors, (102), 70 states have internal predecessors, (102), 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 05:21:06,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 102 transitions. [2024-11-09 05:21:06,130 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 102 transitions. Word has length 5 [2024-11-09 05:21:06,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:06,130 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 102 transitions. [2024-11-09 05:21:06,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:06,131 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 102 transitions. [2024-11-09 05:21:06,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 05:21:06,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:06,132 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 05:21:06,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:21:06,132 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 05:21:06,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:06,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1808054686, now seen corresponding path program 1 times [2024-11-09 05:21:06,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:06,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085570825] [2024-11-09 05:21:06,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:06,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:06,651 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 05:21:06,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:06,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085570825] [2024-11-09 05:21:06,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085570825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:06,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:06,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:21:06,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889430314] [2024-11-09 05:21:06,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:06,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:21:06,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:06,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:21:06,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:06,656 INFO L87 Difference]: Start difference. First operand 71 states and 102 transitions. Second operand has 4 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 05:21:06,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:06,831 INFO L93 Difference]: Finished difference Result 89 states and 115 transitions. [2024-11-09 05:21:06,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:21:06,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 05:21:06,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:06,833 INFO L225 Difference]: With dead ends: 89 [2024-11-09 05:21:06,833 INFO L226 Difference]: Without dead ends: 86 [2024-11-09 05:21:06,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:06,835 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 30 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:06,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 27 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:21:06,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-09 05:21:06,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 72. [2024-11-09 05:21:06,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 71 states have internal predecessors, (101), 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 05:21:06,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2024-11-09 05:21:06,847 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 6 [2024-11-09 05:21:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:06,847 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2024-11-09 05:21:06,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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 05:21:06,848 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2024-11-09 05:21:06,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:21:06,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:06,849 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:06,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:21:06,849 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 05:21:06,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:06,850 INFO L85 PathProgramCache]: Analyzing trace with hash -215120178, now seen corresponding path program 1 times [2024-11-09 05:21:06,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:06,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803888159] [2024-11-09 05:21:06,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:06,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:07,387 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 05:21:07,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:07,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803888159] [2024-11-09 05:21:07,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803888159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:07,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:07,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:21:07,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371125623] [2024-11-09 05:21:07,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:07,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:21:07,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:07,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:21:07,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:07,394 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:07,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:07,550 INFO L93 Difference]: Finished difference Result 96 states and 131 transitions. [2024-11-09 05:21:07,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:21:07,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 05:21:07,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:07,552 INFO L225 Difference]: With dead ends: 96 [2024-11-09 05:21:07,552 INFO L226 Difference]: Without dead ends: 93 [2024-11-09 05:21:07,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:07,554 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 28 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:07,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 30 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:21:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-09 05:21:07,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 80. [2024-11-09 05:21:07,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 68 states have (on average 1.661764705882353) internal successors, (113), 79 states have internal predecessors, (113), 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 05:21:07,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2024-11-09 05:21:07,563 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 7 [2024-11-09 05:21:07,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:07,563 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2024-11-09 05:21:07,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:07,564 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2024-11-09 05:21:07,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:21:07,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:07,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:07,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:21:07,565 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 05:21:07,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:07,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1921209316, now seen corresponding path program 1 times [2024-11-09 05:21:07,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:07,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280733983] [2024-11-09 05:21:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:07,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:08,082 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 05:21:08,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:08,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280733983] [2024-11-09 05:21:08,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280733983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:08,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:08,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:21:08,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385853038] [2024-11-09 05:21:08,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:08,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:21:08,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:08,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:21:08,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:08,089 INFO L87 Difference]: Start difference. First operand 80 states and 113 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:08,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:08,251 INFO L93 Difference]: Finished difference Result 150 states and 212 transitions. [2024-11-09 05:21:08,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:21:08,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 05:21:08,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:08,253 INFO L225 Difference]: With dead ends: 150 [2024-11-09 05:21:08,253 INFO L226 Difference]: Without dead ends: 88 [2024-11-09 05:21:08,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:21:08,255 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:08,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 34 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:21:08,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-09 05:21:08,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2024-11-09 05:21:08,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 70 states have (on average 1.6) internal successors, (112), 81 states have internal predecessors, (112), 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 05:21:08,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 112 transitions. [2024-11-09 05:21:08,275 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 112 transitions. Word has length 8 [2024-11-09 05:21:08,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:08,276 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 112 transitions. [2024-11-09 05:21:08,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:08,276 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 112 transitions. [2024-11-09 05:21:08,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 05:21:08,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:08,281 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:08,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:21:08,281 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 05:21:08,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:08,282 INFO L85 PathProgramCache]: Analyzing trace with hash -61225679, now seen corresponding path program 1 times [2024-11-09 05:21:08,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:08,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800288345] [2024-11-09 05:21:08,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:08,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:08,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:08,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:08,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800288345] [2024-11-09 05:21:08,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800288345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:08,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:08,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:21:08,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075677269] [2024-11-09 05:21:08,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:08,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:21:08,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:08,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:21:08,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:08,420 INFO L87 Difference]: Start difference. First operand 82 states and 112 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 05:21:08,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:08,472 INFO L93 Difference]: Finished difference Result 171 states and 234 transitions. [2024-11-09 05:21:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:21:08,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2024-11-09 05:21:08,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:08,474 INFO L225 Difference]: With dead ends: 171 [2024-11-09 05:21:08,474 INFO L226 Difference]: Without dead ends: 104 [2024-11-09 05:21:08,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:08,476 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 19 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:08,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 62 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:21:08,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-09 05:21:08,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 92. [2024-11-09 05:21:08,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 80 states have (on average 1.625) internal successors, (130), 91 states have internal predecessors, (130), 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 05:21:08,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2024-11-09 05:21:08,486 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 16 [2024-11-09 05:21:08,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:08,486 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2024-11-09 05:21:08,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 05:21:08,487 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2024-11-09 05:21:08,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 05:21:08,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:08,488 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:08,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:21:08,488 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 05:21:08,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:08,489 INFO L85 PathProgramCache]: Analyzing trace with hash 749010533, now seen corresponding path program 1 times [2024-11-09 05:21:08,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:08,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305697537] [2024-11-09 05:21:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:08,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:08,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:08,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:08,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305697537] [2024-11-09 05:21:08,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305697537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:08,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:08,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:21:08,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830753979] [2024-11-09 05:21:08,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:08,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:21:08,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:08,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:21:08,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:08,635 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 05:21:08,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:08,667 INFO L93 Difference]: Finished difference Result 173 states and 249 transitions. [2024-11-09 05:21:08,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:21:08,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2024-11-09 05:21:08,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:08,669 INFO L225 Difference]: With dead ends: 173 [2024-11-09 05:21:08,669 INFO L226 Difference]: Without dead ends: 92 [2024-11-09 05:21:08,670 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 05:21:08,671 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:08,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:21:08,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-09 05:21:08,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-09 05:21:08,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 80 states have (on average 1.55) internal successors, (124), 91 states have internal predecessors, (124), 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 05:21:08,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 124 transitions. [2024-11-09 05:21:08,680 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 124 transitions. Word has length 20 [2024-11-09 05:21:08,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:08,681 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 124 transitions. [2024-11-09 05:21:08,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 05:21:08,681 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 124 transitions. [2024-11-09 05:21:08,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 05:21:08,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:08,687 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:08,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:21:08,688 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 05:21:08,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:08,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2140662146, now seen corresponding path program 1 times [2024-11-09 05:21:08,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:08,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958757299] [2024-11-09 05:21:08,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:08,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:08,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:08,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:08,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958757299] [2024-11-09 05:21:08,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958757299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:08,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:08,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:21:08,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129103620] [2024-11-09 05:21:08,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:08,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:21:08,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:08,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:21:08,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:08,808 INFO L87 Difference]: Start difference. First operand 92 states and 124 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 05:21:08,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:08,844 INFO L93 Difference]: Finished difference Result 171 states and 215 transitions. [2024-11-09 05:21:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:21:08,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2024-11-09 05:21:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:08,845 INFO L225 Difference]: With dead ends: 171 [2024-11-09 05:21:08,845 INFO L226 Difference]: Without dead ends: 93 [2024-11-09 05:21:08,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:08,847 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 20 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:08,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 80 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:21:08,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-09 05:21:08,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 78. [2024-11-09 05:21:08,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 66 states have (on average 1.5151515151515151) internal successors, (100), 77 states have internal predecessors, (100), 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 05:21:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2024-11-09 05:21:08,855 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 21 [2024-11-09 05:21:08,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:08,855 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2024-11-09 05:21:08,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 05:21:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2024-11-09 05:21:08,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 05:21:08,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:08,856 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:08,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:21:08,857 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 05:21:08,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:08,857 INFO L85 PathProgramCache]: Analyzing trace with hash 29127656, now seen corresponding path program 1 times [2024-11-09 05:21:08,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:08,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111589135] [2024-11-09 05:21:08,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:08,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:09,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:09,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:09,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111589135] [2024-11-09 05:21:09,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111589135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:21:09,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791434154] [2024-11-09 05:21:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:09,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:09,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:09,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:21:09,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:21:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:09,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:21:09,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:12,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:12,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:21:13,810 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:13,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791434154] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:21:13,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [967466287] [2024-11-09 05:21:13,843 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 05:21:13,844 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:21:13,852 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:21:13,862 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:21:13,863 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:21:22,502 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:21:56,517 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1951#(and (= ~nomsg~0 ~p1_new~0) (= ~p3_new~0 ~nomsg~0) (<= (+ 2147483649 ~st2~0 ~st1~0) 0) (= ~nomsg~0 ~p2_new~0) (exists ((v_~st3~0_86 Int) (v_~send3~0_65 Int) (v_~p2_old~0_23 Int) (v_~p2_old~0_54 Int) (|v_ULTIMATE.start_node3_~m3~0#1_57| Int) (v_~mode3~0_63 Int) (v_~mode2~0_65 Int) (v_~p3_old~0_35 Int) (|v_ULTIMATE.start_node3_~m3~0#1_34| Int) (|v_ULTIMATE.start_node2_~m2~0#1_73| Int) (v_~p3_new~0_33 Int) (|v_ULTIMATE.start_node2_~m2~0#1_45| Int) (v_~st2~0_100 Int) (v_~p1_old~0_64 Int) (v_~p1_old~0_31 Int) (v_~send2~0_67 Int) (v_~p2_new~0_41 Int)) (and (or (and (or (and (not (= ~nomsg~0 v_~p2_old~0_54)) (or (and (= ~st3~0 v_~st3~0_86) (<= (+ ~id3~0 1) v_~p2_old~0_54) (= ~send3~0 v_~p2_old~0_54)) (and (= ~send3~0 v_~send3~0_65) (<= v_~p2_old~0_54 ~id3~0) (or (and (= ~st3~0 v_~st3~0_86) (not (= ~id3~0 v_~p2_old~0_54))) (and (= ~st3~0 1) (= ~id3~0 v_~p2_old~0_54)))))) (and (= ~nomsg~0 v_~p2_old~0_54) (= ~send3~0 v_~send3~0_65) (= ~st3~0 v_~st3~0_86))) (= v_~p3_new~0_33 ~p3_old~0) (= ~mode3~0 0) (not (= (mod v_~mode3~0_63 256) 0)) (= ~nomsg~0 v_~p2_old~0_23)) (and (= ~mode3~0 1) (= |v_ULTIMATE.start_node3_~m3~0#1_57| |v_ULTIMATE.start_node3_~m3~0#1_34|) (= v_~p2_old~0_54 v_~p2_old~0_23) (= ~send3~0 v_~send3~0_65) (= ~st3~0 v_~st3~0_86) (= (mod v_~mode3~0_63 256) 0) (or (and (= v_~p3_new~0_33 ~nomsg~0) (or (and (<= 128 (mod v_~send3~0_65 256)) (= (+ ~p3_old~0 256) (mod v_~send3~0_65 256))) (and (= ~p3_old~0 (mod v_~send3~0_65 256)) (<= (mod v_~send3~0_65 256) 127)))) (and (not (= v_~p3_new~0_33 ~nomsg~0)) (or (and (<= 128 (mod v_~p3_new~0_33 256)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_33 256))) (and (<= (mod v_~p3_new~0_33 256) 127) (= ~p3_old~0 (mod v_~p3_new~0_33 256)))))))) (or (and (= ~mode1~0 0) (= ~nomsg~0 v_~p3_old~0_35) (exists ((v_~r1~0_50 Int) (v_~st1~0_74 Int) (v_~send1~0_41 Int) (v_~p3_old~0_34 Int) (v_~mode1~0_41 Int) (v_~r1~0_49 Int)) (and (<= 0 (+ v_~st2~0_100 v_~st1~0_74 2147483648)) (= (+ v_~st2~0_100 v_~st1~0_74 v_~st3~0_86) 0) (<= 0 v_~mode1~0_41) (= ~p2~0 0) (= (+ (mod v_~r1~0_50 256) 1) ~r1~0) (<= v_~mode1~0_41 1) (= v_~r1~0_50 v_~r1~0_49) (<= (+ v_~st2~0_100 v_~st1~0_74) 2147483647) (or (and (= ~send1~0 v_~send1~0_41) (= ~nomsg~0 v_~p3_old~0_34) (= ~st1~0 v_~st1~0_74)) (and (or (and (<= (+ ~id1~0 1) v_~p3_old~0_34) (= ~send1~0 v_~p3_old~0_34) (= ~st1~0 v_~st1~0_74)) (and (= ~send1~0 v_~send1~0_41) (or (and (= ~st1~0 1) (= ~id1~0 v_~p3_old~0_34)) (and (not (= ~id1~0 v_~p3_old~0_34)) (= ~st1~0 v_~st1~0_74))) (<= v_~p3_old~0_34 ~id1~0))) (not (= ~nomsg~0 v_~p3_old~0_34)))) (not (= v_~mode1~0_41 0)) (= ~p3~0 0) (= ~p1~0 0) (<= (mod v_~r1~0_49 256) 2)))) (and (exists ((v_~p1_new~0_32 Int) (v_~mode1~0_42 Int)) (and (= (+ ~st1~0 v_~st2~0_100 v_~st3~0_86) 0) (= ~p2~0 0) (<= (+ ~st1~0 v_~st2~0_100) 2147483647) (= v_~mode1~0_42 0) (<= (mod ~r1~0 256) 2) (= ~p3~0 0) (<= 0 (+ ~st1~0 v_~st2~0_100 2147483648)) (or (and (or (and (<= (mod ~send1~0 256) 127) (= ~p1_old~0 (mod ~send1~0 256))) (and (= (+ 256 ~p1_old~0) (mod ~send1~0 256)) (<= 128 (mod ~send1~0 256)))) (= ~nomsg~0 v_~p1_new~0_32)) (and (not (= ~nomsg~0 v_~p1_new~0_32)) (or (and (<= (mod v_~p1_new~0_32 256) 127) (= (mod v_~p1_new~0_32 256) ~p1_old~0)) (and (= (+ 256 ~p1_old~0) (mod v_~p1_new~0_32 256)) (<= 128 (mod v_~p1_new~0_32 256)))))) (= ~p1~0 0))) (= ~mode1~0 1))) (or (and (= ~mode2~0 1) (= (mod v_~mode2~0_65 256) 0) (= ~send2~0 v_~send2~0_67) (= v_~p1_old~0_64 v_~p1_old~0_31) (or (and (<= (mod v_~p2_new~0_41 256) 127) (or (and (<= 128 (mod v_~send2~0_67 256)) (or (and (= v_~p2_new~0_41 ~nomsg~0) (= (mod v_~send2~0_67 256) (+ 256 ~p2_old~0))) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= ~p2_old~0 (mod v_~p2_new~0_41 256))))) (and (<= (mod v_~send2~0_67 256) 127) (or (and (= (mod v_~send2~0_67 256) ~p2_old~0) (= v_~p2_new~0_41 ~nomsg~0)) (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= ~p2_old~0 (mod v_~p2_new~0_41 256))))))) (and (<= 128 (mod v_~p2_new~0_41 256)) (or (and (or (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_41 256))) (and (= v_~p2_new~0_41 ~nomsg~0) (= (mod v_~send2~0_67 256) (+ 256 ~p2_old~0)))) (<= 128 (mod v_~send2~0_67 256))) (and (<= (mod v_~send2~0_67 256) 127) (or (and (not (= v_~p2_new~0_41 ~nomsg~0)) (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_41 256))) (and (= (mod v_~send2~0_67 256) ~p2_old~0) (= v_~p2_new~0_41 ~nomsg~0))))))) (= |v_ULTIMATE.start_node2_~m2~0#1_73| |v_ULTIMATE.start_node2_~m2~0#1_45|) (= ~st2~0 v_~st2~0_100)) (and (= ~mode2~0 0) (not (= (mod v_~mode2~0_65 256) 0)) (= ~nomsg~0 v_~p1_old~0_31) (= v_~p2_new~0_41 ~p2_old~0) (or (and (= ~send2~0 v_~send2~0_67) (= ~nomsg~0 v_~p1_old~0_64) (= ~st2~0 v_~st2~0_100)) (and (or (and (= ~send2~0 v_~send2~0_67) (or (and (= ~st2~0 1) (= ~id2~0 v_~p1_old~0_64)) (and (not (= ~id2~0 v_~p1_old~0_64)) (= ~st2~0 v_~st2~0_100))) (<= v_~p1_old~0_64 ~id2~0)) (and (<= (+ ~id2~0 1) v_~p1_old~0_64) (= ~send2~0 v_~p1_old~0_64) (= ~st2~0 v_~st2~0_100))) (not (= ~nomsg~0 v_~p1_old~0_64)))))))))' at error location [2024-11-09 05:21:56,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:21:56,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:21:56,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 14 [2024-11-09 05:21:56,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072839348] [2024-11-09 05:21:56,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:21:56,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 05:21:56,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:56,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 05:21:56,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=789, Unknown=6, NotChecked=0, Total=992 [2024-11-09 05:21:56,521 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 16 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 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 05:21:56,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:56,764 INFO L93 Difference]: Finished difference Result 84 states and 106 transitions. [2024-11-09 05:21:56,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:21:56,764 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 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 23 [2024-11-09 05:21:56,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:56,765 INFO L225 Difference]: With dead ends: 84 [2024-11-09 05:21:56,766 INFO L226 Difference]: Without dead ends: 78 [2024-11-09 05:21:56,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 34.4s TimeCoverageRelationStatistics Valid=197, Invalid=789, Unknown=6, NotChecked=0, Total=992 [2024-11-09 05:21:56,767 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 58 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:56,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 28 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:21:56,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-09 05:21:56,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2024-11-09 05:21:56,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 71 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:21:56,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2024-11-09 05:21:56,775 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 23 [2024-11-09 05:21:56,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:56,776 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2024-11-09 05:21:56,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.6) internal successors, (69), 15 states have internal predecessors, (69), 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 05:21:56,777 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2024-11-09 05:21:56,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 05:21:56,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:56,778 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:21:56,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:21:56,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:56,982 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 05:21:56,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:56,983 INFO L85 PathProgramCache]: Analyzing trace with hash -2073086038, now seen corresponding path program 1 times [2024-11-09 05:21:56,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:56,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892816032] [2024-11-09 05:21:56,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:56,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:57,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:21:57,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:57,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892816032] [2024-11-09 05:21:57,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892816032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:21:57,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229262713] [2024-11-09 05:21:57,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:57,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:57,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:57,696 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:21:57,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:21:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:57,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:21:57,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:59,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:21:59,795 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:22:02,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:22:02,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229262713] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:22:02,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [383738757] [2024-11-09 05:22:02,033 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 05:22:02,034 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:22:02,034 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:22:02,034 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:22:02,035 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:22:08,075 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:22:41,700 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2289#(and (exists ((v_~st3~0_95 Int) (v_~p2_old~0_23 Int) (|v_ULTIMATE.start_node3_~m3~0#1_70| Int) (v_~send3~0_74 Int) (v_~mode3~0_72 Int) (v_~p3_old~0_45 Int) (|v_ULTIMATE.start_node3_~m3~0#1_34| Int) (v_~send2~0_75 Int) (v_~st2~0_108 Int) (v_~p3_new~0_40 Int) (|v_ULTIMATE.start_node2_~m2~0#1_84| Int) (v_~p2_new~0_48 Int) (|v_ULTIMATE.start_node2_~m2~0#1_45| Int) (v_~mode2~0_73 Int) (v_~p1_old~0_31 Int) (v_~p2_old~0_68 Int) (v_~p1_old~0_76 Int)) (and (or (and (exists ((v_~p1_new~0_45 Int)) (and (= ~p2~0 0) (= (+ ~st1~0 v_~st2~0_108 v_~st3~0_95) 0) (<= (mod ~r1~0 256) 2) (or (and (or (and (<= (mod ~send1~0 256) 127) (or (and (= (mod v_~p1_new~0_45 256) ~p1_old~0) (not (= ~nomsg~0 v_~p1_new~0_45))) (and (= ~nomsg~0 v_~p1_new~0_45) (= ~p1_old~0 (mod ~send1~0 256))))) (and (or (and (= (mod v_~p1_new~0_45 256) ~p1_old~0) (not (= ~nomsg~0 v_~p1_new~0_45))) (and (= ~nomsg~0 v_~p1_new~0_45) (= (+ 256 ~p1_old~0) (mod ~send1~0 256)))) (<= 128 (mod ~send1~0 256)))) (<= (mod v_~p1_new~0_45 256) 127)) (and (or (and (or (and (= ~nomsg~0 v_~p1_new~0_45) (= (+ 256 ~p1_old~0) (mod ~send1~0 256))) (and (not (= ~nomsg~0 v_~p1_new~0_45)) (= (+ 256 ~p1_old~0) (mod v_~p1_new~0_45 256)))) (<= 128 (mod ~send1~0 256))) (and (<= (mod ~send1~0 256) 127) (or (and (= ~nomsg~0 v_~p1_new~0_45) (= ~p1_old~0 (mod ~send1~0 256))) (and (not (= ~nomsg~0 v_~p1_new~0_45)) (= (+ 256 ~p1_old~0) (mod v_~p1_new~0_45 256)))))) (<= 128 (mod v_~p1_new~0_45 256)))) (<= (+ ~st1~0 v_~st2~0_108) 2147483647) (= ~p3~0 0) (= ~p1~0 0))) (exists ((v_~mode1~0_54 Int)) (= (mod v_~mode1~0_54 256) 0)) (= ~mode1~0 1)) (and (exists ((v_~send1~0_47 Int) (v_~r1~0_61 Int) (v_~r1~0_62 Int) (v_~st1~0_80 Int) (v_~p3_old~0_44 Int)) (and (<= (mod v_~r1~0_61 256) 2) (= ~p2~0 0) (= (+ v_~st2~0_108 v_~st1~0_80 v_~st3~0_95) 0) (= v_~r1~0_62 v_~r1~0_61) (<= (+ v_~st2~0_108 v_~st1~0_80) 2147483647) (= ~p3~0 0) (= (+ (mod v_~r1~0_62 256) 1) ~r1~0) (= ~p1~0 0) (or (and (or (and (= ~send1~0 v_~p3_old~0_44) (<= (+ ~id1~0 1) v_~p3_old~0_44) (= ~st1~0 v_~st1~0_80)) (and (or (and (not (= ~id1~0 v_~p3_old~0_44)) (= ~st1~0 v_~st1~0_80)) (and (= ~st1~0 1) (= ~id1~0 v_~p3_old~0_44))) (<= v_~p3_old~0_44 ~id1~0) (= ~send1~0 v_~send1~0_47))) (not (= ~nomsg~0 v_~p3_old~0_44))) (and (= ~nomsg~0 v_~p3_old~0_44) (= ~st1~0 v_~st1~0_80) (= ~send1~0 v_~send1~0_47))))) (exists ((v_~mode1~0_53 Int)) (not (= (mod v_~mode1~0_53 256) 0))) (= ~nomsg~0 v_~p3_old~0_45) (= ~mode1~0 0))) (or (and (= ~mode2~0 1) (= ~st2~0 v_~st2~0_108) (= (mod v_~mode2~0_73 256) 0) (= v_~p1_old~0_76 v_~p1_old~0_31) (or (and (or (and (or (and (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod v_~send2~0_75 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_48 ~nomsg~0))) (<= 128 (mod v_~p2_new~0_48 256))) (and (<= (mod v_~p2_new~0_48 256) 127) (or (and (= ~p2_old~0 (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod v_~send2~0_75 256) (+ 256 ~p2_old~0)) (= v_~p2_new~0_48 ~nomsg~0))))) (<= 128 (mod v_~send2~0_75 256))) (and (or (and (or (and (= (+ 256 ~p2_old~0) (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod v_~send2~0_75 256) ~p2_old~0) (= v_~p2_new~0_48 ~nomsg~0))) (<= 128 (mod v_~p2_new~0_48 256))) (and (or (and (= ~p2_old~0 (mod v_~p2_new~0_48 256)) (not (= v_~p2_new~0_48 ~nomsg~0))) (and (= (mod v_~send2~0_75 256) ~p2_old~0) (= v_~p2_new~0_48 ~nomsg~0))) (<= (mod v_~p2_new~0_48 256) 127))) (<= (mod v_~send2~0_75 256) 127))) (= |v_ULTIMATE.start_node2_~m2~0#1_84| |v_ULTIMATE.start_node2_~m2~0#1_45|) (= ~send2~0 v_~send2~0_75)) (and (= ~mode2~0 0) (or (and (= ~st2~0 v_~st2~0_108) (= ~nomsg~0 v_~p1_old~0_76) (= ~send2~0 v_~send2~0_75)) (and (not (= ~nomsg~0 v_~p1_old~0_76)) (or (and (= ~st2~0 v_~st2~0_108) (<= (+ ~id2~0 1) v_~p1_old~0_76) (= ~send2~0 v_~p1_old~0_76)) (and (or (and (= ~st2~0 v_~st2~0_108) (not (= ~id2~0 v_~p1_old~0_76))) (and (= ~st2~0 1) (= ~id2~0 v_~p1_old~0_76))) (<= v_~p1_old~0_76 ~id2~0) (= ~send2~0 v_~send2~0_75))))) (= ~nomsg~0 v_~p1_old~0_31) (not (= (mod v_~mode2~0_73 256) 0)) (= v_~p2_new~0_48 ~p2_old~0))) (or (and (= v_~p2_old~0_68 v_~p2_old~0_23) (= ~mode3~0 1) (= ~send3~0 v_~send3~0_74) (= ~st3~0 v_~st3~0_95) (= |v_ULTIMATE.start_node3_~m3~0#1_70| |v_ULTIMATE.start_node3_~m3~0#1_34|) (or (and (or (and (<= (mod v_~send3~0_74 256) 127) (= ~p3_old~0 (mod v_~send3~0_74 256))) (and (<= 128 (mod v_~send3~0_74 256)) (= (+ ~p3_old~0 256) (mod v_~send3~0_74 256)))) (= v_~p3_new~0_40 ~nomsg~0)) (and (or (and (<= 128 (mod v_~p3_new~0_40 256)) (= (+ ~p3_old~0 256) (mod v_~p3_new~0_40 256))) (and (= ~p3_old~0 (mod v_~p3_new~0_40 256)) (<= (mod v_~p3_new~0_40 256) 127))) (not (= v_~p3_new~0_40 ~nomsg~0)))) (= (mod v_~mode3~0_72 256) 0)) (and (not (= (mod v_~mode3~0_72 256) 0)) (= ~mode3~0 0) (or (and (= ~send3~0 v_~send3~0_74) (= ~nomsg~0 v_~p2_old~0_68) (= ~st3~0 v_~st3~0_95)) (and (not (= ~nomsg~0 v_~p2_old~0_68)) (or (and (= ~send3~0 v_~send3~0_74) (<= v_~p2_old~0_68 ~id3~0) (= ~st3~0 v_~st3~0_95) (not (= ~id3~0 v_~p2_old~0_68))) (and (= ~st3~0 v_~st3~0_95) (<= (+ ~id3~0 1) v_~p2_old~0_68) (= ~send3~0 v_~p2_old~0_68))))) (= v_~p3_new~0_40 ~p3_old~0) (= ~nomsg~0 v_~p2_old~0_23))))) (= ~nomsg~0 ~p1_new~0) (<= 0 (+ ~st2~0 ~st1~0 2147483648)) (= ~p3_new~0 ~nomsg~0) (<= (+ 2147483649 ~st3~0 ~st2~0 ~st1~0) 0) (= ~nomsg~0 ~p2_new~0))' at error location [2024-11-09 05:22:41,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:22:41,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:22:41,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 6] total 13 [2024-11-09 05:22:41,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933577133] [2024-11-09 05:22:41,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:22:41,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 05:22:41,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:22:41,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 05:22:41,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=751, Unknown=7, NotChecked=0, Total=930 [2024-11-09 05:22:41,703 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 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 05:22:42,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:22:42,279 INFO L93 Difference]: Finished difference Result 105 states and 123 transitions. [2024-11-09 05:22:42,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:22:42,280 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 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 25 [2024-11-09 05:22:42,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:22:42,281 INFO L225 Difference]: With dead ends: 105 [2024-11-09 05:22:42,281 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 05:22:42,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 34.4s TimeCoverageRelationStatistics Valid=221, Invalid=962, Unknown=7, NotChecked=0, Total=1190 [2024-11-09 05:22:42,283 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 228 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:22:42,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 46 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:22:42,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 05:22:42,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 61. [2024-11-09 05:22:42,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 60 states have internal predecessors, (68), 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 05:22:42,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2024-11-09 05:22:42,290 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 25 [2024-11-09 05:22:42,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:22:42,291 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2024-11-09 05:22:42,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 14 states have internal predecessors, (72), 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 05:22:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2024-11-09 05:22:42,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:22:42,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:22:42,292 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:22:42,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:22:42,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 05:22:42,497 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-09 05:22:42,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:22:42,498 INFO L85 PathProgramCache]: Analyzing trace with hash 158842504, now seen corresponding path program 1 times [2024-11-09 05:22:42,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:22:42,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092292757] [2024-11-09 05:22:42,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:22:42,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:22:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:22:43,634 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:22:43,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:22:43,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092292757] [2024-11-09 05:22:43,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092292757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:22:43,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783002546] [2024-11-09 05:22:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:22:43,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:22:43,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:22:43,639 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:22:43,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:22:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:22:43,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:22:43,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:22:47,603 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:22:47,603 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:23:05,373 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:23:05,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783002546] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:23:05,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [148205244] [2024-11-09 05:23:05,376 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 05:23:05,377 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:23:05,377 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:23:05,377 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:23:05,378 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:23:10,096 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:23:19,030 WARN L286 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 343 DAG size of output: 335 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:23:27,338 WARN L286 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 345 DAG size of output: 337 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:23:37,520 WARN L286 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 347 DAG size of output: 339 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:23:39,681 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2653#(and (<= 0 ~mode1~0) (<= ~mode1~0 1) (<= 2147483648 (+ ~st3~0 ~st2~0 ~st1~0)))' at error location [2024-11-09 05:23:39,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:23:39,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:23:39,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2024-11-09 05:23:39,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522349116] [2024-11-09 05:23:39,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:23:39,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 05:23:39,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:23:39,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 05:23:39,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=805, Unknown=3, NotChecked=0, Total=992 [2024-11-09 05:23:39,685 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 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 05:23:40,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:23:40,034 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2024-11-09 05:23:40,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:23:40,034 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 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 05:23:40,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:23:40,035 INFO L225 Difference]: With dead ends: 87 [2024-11-09 05:23:40,035 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:23:40,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 31.4s TimeCoverageRelationStatistics Valid=213, Invalid=906, Unknown=3, NotChecked=0, Total=1122 [2024-11-09 05:23:40,037 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 57 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:23:40,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 30 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:23:40,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:23:40,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:23:40,038 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 05:23:40,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:23:40,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2024-11-09 05:23:40,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:23:40,039 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:23:40,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 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 05:23:40,040 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:23:40,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:23:40,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2024-11-09 05:23:40,044 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2024-11-09 05:23:40,044 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2024-11-09 05:23:40,044 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2024-11-09 05:23:40,045 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2024-11-09 05:23:40,045 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2024-11-09 05:23:40,045 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2024-11-09 05:23:40,045 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2024-11-09 05:23:40,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2024-11-09 05:23:40,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2024-11-09 05:23:40,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2024-11-09 05:23:40,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2024-11-09 05:23:40,046 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2024-11-09 05:23:40,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2024-11-09 05:23:40,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:23:40,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 05:23:40,252 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:23:40,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 05:23:40,491 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:23:40,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:23:40 BoogieIcfgContainer [2024-11-09 05:23:40,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:23:40,514 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:23:40,514 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:23:40,515 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:23:40,515 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:21:04" (3/4) ... [2024-11-09 05:23:40,519 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 05:23:40,533 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2024-11-09 05:23:40,534 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-09 05:23:40,535 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 05:23:40,536 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 05:23:40,675 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:23:40,676 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 05:23:40,677 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:23:40,677 INFO L158 Benchmark]: Toolchain (without parser) took 158637.23ms. Allocated memory was 125.8MB in the beginning and 673.2MB in the end (delta: 547.4MB). Free memory was 60.8MB in the beginning and 613.6MB in the end (delta: -552.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:23:40,678 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 125.8MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:23:40,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.54ms. Allocated memory was 125.8MB in the beginning and 184.5MB in the end (delta: 58.7MB). Free memory was 60.7MB in the beginning and 144.7MB in the end (delta: -84.0MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-11-09 05:23:40,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.18ms. Allocated memory is still 184.5MB. Free memory was 144.7MB in the beginning and 141.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:23:40,680 INFO L158 Benchmark]: Boogie Preprocessor took 40.80ms. Allocated memory is still 184.5MB. Free memory was 141.7MB in the beginning and 140.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:23:40,681 INFO L158 Benchmark]: RCFGBuilder took 1316.83ms. Allocated memory is still 184.5MB. Free memory was 140.5MB in the beginning and 98.9MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-09 05:23:40,681 INFO L158 Benchmark]: TraceAbstraction took 156385.32ms. Allocated memory was 184.5MB in the beginning and 673.2MB in the end (delta: 488.6MB). Free memory was 98.8MB in the beginning and 620.9MB in the end (delta: -522.1MB). Peak memory consumption was 360.8MB. Max. memory is 16.1GB. [2024-11-09 05:23:40,682 INFO L158 Benchmark]: Witness Printer took 162.66ms. Allocated memory is still 673.2MB. Free memory was 620.9MB in the beginning and 613.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 05:23:40,685 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 125.8MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.54ms. Allocated memory was 125.8MB in the beginning and 184.5MB in the end (delta: 58.7MB). Free memory was 60.7MB in the beginning and 144.7MB in the end (delta: -84.0MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.18ms. Allocated memory is still 184.5MB. Free memory was 144.7MB in the beginning and 141.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.80ms. Allocated memory is still 184.5MB. Free memory was 141.7MB in the beginning and 140.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1316.83ms. Allocated memory is still 184.5MB. Free memory was 140.5MB in the beginning and 98.9MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 156385.32ms. Allocated memory was 184.5MB in the beginning and 673.2MB in the end (delta: 488.6MB). Free memory was 98.8MB in the beginning and 620.9MB in the end (delta: -522.1MB). Peak memory consumption was 360.8MB. Max. memory is 16.1GB. * Witness Printer took 162.66ms. Allocated memory is still 673.2MB. Free memory was 620.9MB in the beginning and 613.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 208]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 208]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 208]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 208]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 212]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 212]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 212]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 212]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 217]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 217]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 217]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 217]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 156.0s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 529 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 529 mSDsluCounter, 523 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 258 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 721 IncrementalHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 265 mSDtfsCounter, 721 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 142 SyntacticMatches, 4 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 100.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=6, InterpolantAutomatonStates: 54, 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, 11 MinimizatonAttempts, 134 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 35.2s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 11962 SizeOfPredicates, 69 NumberOfNonLiveVariables, 398 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 14/63 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 14 specifications checked. All of them hold - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: ((((((st2 == 1) || (st2 == 0)) && (mode1 == 1)) && ((st3 == 0) || (st3 == 1))) && ((st1 == 1) || (st1 == 0))) || (((((st2 == 1) || (st2 == 0)) && (mode1 == 0)) && ((st3 == 0) || (st3 == 1))) && ((st1 == 1) || (st1 == 0)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 05:23:40,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9277b1d9-ffe0-446f-9567-1dfcfb91883e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE