./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-006.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-006.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2 --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 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:34:28,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:34:28,907 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 12:34:28,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:34:28,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:34:28,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:34:28,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:34:28,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:34:28,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:34:28,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:34:28,960 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:34:28,961 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:34:28,962 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:34:28,962 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:34:28,965 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:34:28,965 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:34:28,966 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:34:28,966 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:34:28,966 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:34:28,967 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:34:28,967 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:34:28,968 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:34:28,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:34:28,969 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:34:28,970 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:34:28,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:34:28,970 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:34:28,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:34:28,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:34:28,971 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:34:28,972 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:34:28,972 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:34:28,972 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:34:28,973 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:34:28,973 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:34:28,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:34:28,974 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:34:28,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:34:28,974 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:34:28,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:34:28,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:28,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:34:28,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:34:28,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:34:28,977 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:34:28,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:34:28,977 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:34:28,978 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:34:28,978 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:34:28,978 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_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f [2024-11-02 12:34:29,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:34:29,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:34:29,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:34:29,425 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:34:29,425 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:34:29,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/xcsp/AllInterval-006.c Unable to find full path for "g++" [2024-11-02 12:34:31,766 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:34:32,070 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:34:32,070 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/sv-benchmarks/c/xcsp/AllInterval-006.c [2024-11-02 12:34:32,084 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/data/ed05f47ef/caa91e024fb34fe597e4a9dd90bc2148/FLAG880ea945c [2024-11-02 12:34:32,118 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/data/ed05f47ef/caa91e024fb34fe597e4a9dd90bc2148 [2024-11-02 12:34:32,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:34:32,123 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:34:32,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:32,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:34:32,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:34:32,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8796d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32, skipping insertion in model container [2024-11-02 12:34:32,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,179 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:34:32,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:34:32,519 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:34:32,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:34:32,615 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:34:32,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32 WrapperNode [2024-11-02 12:34:32,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:32,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:34:32,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:34:32,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:34:32,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,664 INFO L138 Inliner]: procedures = 13, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 175 [2024-11-02 12:34:32,664 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:34:32,665 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:34:32,666 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:34:32,666 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:34:32,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:34:32,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:34:32,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:34:32,697 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:34:32,698 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32" (1/1) ... [2024-11-02 12:34:32,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:32,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:34:32,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:34:32,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:34:32,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:34:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:34:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:34:32,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:34:32,790 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-02 12:34:32,792 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-02 12:34:32,897 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:34:32,901 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:34:33,419 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-02 12:34:33,419 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:34:33,468 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:34:33,468 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:34:33,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:34:33 BoogieIcfgContainer [2024-11-02 12:34:33,469 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:34:33,472 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:34:33,472 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:34:33,477 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:34:33,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:34:32" (1/3) ... [2024-11-02 12:34:33,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea73639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:34:33, skipping insertion in model container [2024-11-02 12:34:33,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:32" (2/3) ... [2024-11-02 12:34:33,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea73639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:34:33, skipping insertion in model container [2024-11-02 12:34:33,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:34:33" (3/3) ... [2024-11-02 12:34:33,485 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2024-11-02 12:34:33,507 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:34:33,507 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-02 12:34:33,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:34:33,618 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;@7bcdcb80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:34:33,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-02 12:34:33,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 65 states have internal predecessors, (70), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-02 12:34:33,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-02 12:34:33,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:33,641 INFO L215 NwaCegarLoop]: trace histogram [47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:33,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-02 12:34:33,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:33,648 INFO L85 PathProgramCache]: Analyzing trace with hash 2093259789, now seen corresponding path program 1 times [2024-11-02 12:34:33,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:33,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397278758] [2024-11-02 12:34:33,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:33,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2024-11-02 12:34:34,717 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:34,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397278758] [2024-11-02 12:34:34,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397278758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:34:34,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084810331] [2024-11-02 12:34:34,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:34,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:34:34,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:34:34,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:34:34,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfc5da1-bbd8-4d16-9982-0cdc68ecc071/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:34:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:34,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:34:34,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:34:35,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2024-11-02 12:34:35,551 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:34:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2024-11-02 12:34:36,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084810331] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:34:36,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [635070041] [2024-11-02 12:34:36,113 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-02 12:34:36,113 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:34:36,119 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:34:36,125 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:34:36,126 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:34:44,470 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-02 12:34:44,472 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:35:01,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [635070041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:01,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:35:01,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [4, 4, 4] total 67 [2024-11-02 12:35:01,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178878966] [2024-11-02 12:35:01,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:01,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-02 12:35:01,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:01,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-02 12:35:01,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2131, Invalid=2425, Unknown=0, NotChecked=0, Total=4556 [2024-11-02 12:35:01,532 INFO L87 Difference]: Start difference. First operand has 119 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 65 states have internal predecessors, (70), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 62 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-02 12:35:03,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:03,077 INFO L93 Difference]: Finished difference Result 119 states and 174 transitions. [2024-11-02 12:35:03,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-02 12:35:03,081 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Word has length 155 [2024-11-02 12:35:03,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:03,094 INFO L225 Difference]: With dead ends: 119 [2024-11-02 12:35:03,094 INFO L226 Difference]: Without dead ends: 113 [2024-11-02 12:35:03,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 400 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=2131, Invalid=2425, Unknown=0, NotChecked=0, Total=4556 [2024-11-02 12:35:03,105 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 59 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:03,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 462 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-02 12:35:03,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states.