./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 9bd2c7ff 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_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-006.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ --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 0.2.3-dev-9bd2c7f [2023-11-19 05:24:54,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:54,521 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 05:24:54,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:54,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:54,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:54,570 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:54,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:54,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:54,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:54,579 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:54,581 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:54,581 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:54,583 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:24:54,584 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:54,584 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:54,584 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:24:54,585 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:24:54,585 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:54,586 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:24:54,586 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:24:54,587 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:24:54,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:54,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:24:54,589 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:24:54,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:24:54,590 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:24:54,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:54,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:24:54,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:54,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:24:54,601 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:24:54,601 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:24:54,601 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:24:54,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:24:54,602 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:54,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:54,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:54,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:54,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:54,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:54,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:24:54,604 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:24:54,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:24:54,605 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:24:54,605 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:54,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:54,606 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_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f [2023-11-19 05:24:54,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:54,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:54,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:54,909 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:54,910 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:54,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/xcsp/AllInterval-006.c [2023-11-19 05:24:57,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:58,195 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:58,195 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/sv-benchmarks/c/xcsp/AllInterval-006.c [2023-11-19 05:24:58,204 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/data/0a11f1dbc/a48fa14538604a3d98561257dc4600ad/FLAGac230b5a3 [2023-11-19 05:24:58,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/data/0a11f1dbc/a48fa14538604a3d98561257dc4600ad [2023-11-19 05:24:58,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:58,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:58,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:58,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:58,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:58,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40cd87e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58, skipping insertion in model container [2023-11-19 05:24:58,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,258 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:58,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:58,449 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:24:58,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:58,496 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:24:58,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58 WrapperNode [2023-11-19 05:24:58,497 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:58,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:58,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:24:58,499 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:24:58,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,563 INFO L138 Inliner]: procedures = 13, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 175 [2023-11-19 05:24:58,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:58,564 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:24:58,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:24:58,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:24:58,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,586 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,590 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:58,591 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:58,591 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:58,592 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:58,593 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58" (1/1) ... [2023-11-19 05:24:58,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:58,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:58,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:58,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:58,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:24:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2023-11-19 05:24:58,674 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2023-11-19 05:24:58,768 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:58,772 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:59,199 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:24:59,228 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:24:59,228 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:24:59,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:59 BoogieIcfgContainer [2023-11-19 05:24:59,234 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:24:59,237 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:24:59,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:24:59,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:24:59,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:58" (1/3) ... [2023-11-19 05:24:59,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b56c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:59, skipping insertion in model container [2023-11-19 05:24:59,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:58" (2/3) ... [2023-11-19 05:24:59,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b56c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:59, skipping insertion in model container [2023-11-19 05:24:59,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:59" (3/3) ... [2023-11-19 05:24:59,244 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2023-11-19 05:24:59,264 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:24:59,264 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-19 05:24:59,314 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:24:59,320 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@33265911, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:24:59,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-19 05:24:59,324 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) [2023-11-19 05:24:59,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-19 05:24:59,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:59,340 INFO L195 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] [2023-11-19 05:24:59,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-19 05:24:59,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:59,346 INFO L85 PathProgramCache]: Analyzing trace with hash 2093259789, now seen corresponding path program 1 times [2023-11-19 05:24:59,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:24:59,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988837040] [2023-11-19 05:24:59,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:59,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:24:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:00,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2023-11-19 05:25:00,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:00,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988837040] [2023-11-19 05:25:00,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988837040] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:25:00,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65635969] [2023-11-19 05:25:00,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:00,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:25:00,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:25:00,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:25:00,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:25:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:00,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:25:00,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:25:01,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2023-11-19 05:25:01,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:25:01,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2023-11-19 05:25:01,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65635969] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:25:01,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [755593410] [2023-11-19 05:25:01,650 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2023-11-19 05:25:01,651 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:25:01,657 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:25:01,665 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:25:01,666 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:25:10,068 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2023-11-19 05:25:10,069 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-19 05:25:26,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [755593410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:26,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-19 05:25:26,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [4, 4, 4] total 68 [2023-11-19 05:25:26,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949686882] [2023-11-19 05:25:26,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:26,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-11-19 05:25:26,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:25:26,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-11-19 05:25:26,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2197, Invalid=2495, Unknown=0, NotChecked=0, Total=4692 [2023-11-19 05:25:26,541 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 63 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) [2023-11-19 05:25:27,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:25:27,872 INFO L93 Difference]: Finished difference Result 119 states and 174 transitions. [2023-11-19 05:25:27,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-11-19 05:25:27,876 INFO L78 Accepts]: Start accepts. Automaton has has 63 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 [2023-11-19 05:25:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:25:27,894 INFO L225 Difference]: With dead ends: 119 [2023-11-19 05:25:27,894 INFO L226 Difference]: Without dead ends: 105 [2023-11-19 05:25:27,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 399 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=2197, Invalid=2495, Unknown=0, NotChecked=0, Total=4692 [2023-11-19 05:25:27,908 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 45 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:25:27,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 146 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 05:25:27,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-11-19 05:25:28,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-11-19 05:25:28,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 43 states have (on average 1.302325581395349) internal successors, (56), 52 states have internal predecessors, (56), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-19 05:25:28,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 158 transitions. [2023-11-19 05:25:28,056 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 158 transitions. Word has length 155 [2023-11-19 05:25:28,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:25:28,061 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 158 transitions. [2023-11-19 05:25:28,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 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) [2023-11-19 05:25:28,062 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 158 transitions. [2023-11-19 05:25:28,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-19 05:25:28,073 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:28,074 INFO L195 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, 1, 1, 1] [2023-11-19 05:25:28,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:25:28,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:25:28,288 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-19 05:25:28,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1672297972, now seen corresponding path program 1 times [2023-11-19 05:25:28,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:28,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877934333] [2023-11-19 05:25:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:28,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:28,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2162 trivial. 0 not checked. [2023-11-19 05:25:28,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:28,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877934333] [2023-11-19 05:25:28,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877934333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:28,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:28,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:25:28,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364540953] [2023-11-19 05:25:28,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:28,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:25:28,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:25:28,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:25:28,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:25:28,459 INFO L87 Difference]: Start difference. First operand 105 states and 158 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-11-19 05:25:28,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:25:28,550 INFO L93 Difference]: Finished difference Result 109 states and 162 transitions. [2023-11-19 05:25:28,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:25:28,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 158 [2023-11-19 05:25:28,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:25:28,557 INFO L225 Difference]: With dead ends: 109 [2023-11-19 05:25:28,557 INFO L226 Difference]: Without dead ends: 104 [2023-11-19 05:25:28,558 INFO L412 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 [2023-11-19 05:25:28,560 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 14 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:25:28,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 259 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:25:28,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-19 05:25:28,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2023-11-19 05:25:28,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 43 states have (on average 1.186046511627907) internal successors, (51), 47 states have internal predecessors, (51), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-19 05:25:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 153 transitions. [2023-11-19 05:25:28,648 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 153 transitions. Word has length 158 [2023-11-19 05:25:28,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:25:28,651 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 153 transitions. [2023-11-19 05:25:28,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2023-11-19 05:25:28,652 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 153 transitions. [2023-11-19 05:25:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-19 05:25:28,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:28,657 INFO L195 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, 1, 1, 1, 1] [2023-11-19 05:25:28,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:25:28,658 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-19 05:25:28,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:28,659 INFO L85 PathProgramCache]: Analyzing trace with hash 301629684, now seen corresponding path program 1 times [2023-11-19 05:25:28,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:28,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341081610] [2023-11-19 05:25:28,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:28,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:28,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2023-11-19 05:25:28,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:28,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341081610] [2023-11-19 05:25:28,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341081610] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:25:28,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373019479] [2023-11-19 05:25:28,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:28,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:25:28,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:25:28,978 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:25:29,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505adb18-5258-4654-8fa7-3fb054788617/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 05:25:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:29,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 05:25:29,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:25:29,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2023-11-19 05:25:29,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:25:29,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2023-11-19 05:25:29,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373019479] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:25:29,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1886795672] [2023-11-19 05:25:29,602 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2023-11-19 05:25:29,602 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 05:25:29,603 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 05:25:29,603 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 05:25:29,603 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 05:25:36,279 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2023-11-19 05:25:36,280 INFO L180 IcfgInterpreter]: Interpretation finished