./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array16_alloca_original.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-15/array16_alloca_original.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91 --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 64bit --witnessprinter.graph.data.programhash 628be9b0d43b46482b2f1f32ff1648acbb8b41e569549b972a02e76fffda9076 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:05:28,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:05:28,555 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-25 00:05:28,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:05:28,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:05:28,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:05:28,613 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:05:28,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:05:28,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:05:28,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:05:28,623 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:05:28,624 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:05:28,625 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:05:28,627 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:05:28,627 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:05:28,628 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:05:28,628 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:05:28,629 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:05:28,629 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:05:28,630 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:05:28,630 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:05:28,631 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:05:28,632 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:05:28,632 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:05:28,633 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:05:28,633 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:05:28,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:05:28,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:05:28,635 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:05:28,635 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:05:28,636 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:05:28,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:05:28,637 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:05:28,637 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:05:28,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:05:28,638 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:05:28,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:28,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:05:28,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:05:28,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:05:28,657 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:05:28,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:05:28,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:05:28,658 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:05:28,659 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:05:28,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:05:28,659 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_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 628be9b0d43b46482b2f1f32ff1648acbb8b41e569549b972a02e76fffda9076 [2023-11-25 00:05:28,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:05:29,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:05:29,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:05:29,010 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:05:29,012 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:05:29,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/termination-15/array16_alloca_original.i [2023-11-25 00:05:32,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:05:32,556 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:05:32,566 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/sv-benchmarks/c/termination-15/array16_alloca_original.i [2023-11-25 00:05:32,581 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/data/8c63221a3/09251ae9780c481aa6c2d0565451f8b0/FLAGa64b5bac3 [2023-11-25 00:05:32,597 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/data/8c63221a3/09251ae9780c481aa6c2d0565451f8b0 [2023-11-25 00:05:32,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:05:32,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:05:32,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:05:32,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:05:32,609 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:05:32,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:05:32" (1/1) ... [2023-11-25 00:05:32,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f37ea36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:32, skipping insertion in model container [2023-11-25 00:05:32,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:05:32" (1/1) ... [2023-11-25 00:05:32,656 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:05:33,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:05:33,115 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:05:33,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:05:33,234 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:05:33,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33 WrapperNode [2023-11-25 00:05:33,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:05:33,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:05:33,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:05:33,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:05:33,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33" (1/1) ... [2023-11-25 00:05:33,257 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33" (1/1) ... [2023-11-25 00:05:33,280 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2023-11-25 00:05:33,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:05:33,281 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:05:33,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:05:33,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:05:33,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33" (1/1) ... [2023-11-25 00:05:33,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33" (1/1) ... [2023-11-25 00:05:33,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33" (1/1) ... [2023-11-25 00:05:33,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33" (1/1) ... [2023-11-25 00:05:33,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33" (1/1) ... [2023-11-25 00:05:33,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33" (1/1) ... [2023-11-25 00:05:33,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33" (1/1) ... [2023-11-25 00:05:33,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33" (1/1) ... [2023-11-25 00:05:33,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:05:33,310 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:05:33,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:05:33,311 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:05:33,311 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33" (1/1) ... [2023-11-25 00:05:33,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:33,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:33,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:05:33,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:05:33,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:05:33,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:05:33,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:05:33,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:05:33,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:05:33,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:05:33,537 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:05:33,540 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:05:33,738 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:05:33,810 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:05:33,810 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-25 00:05:33,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:05:33 BoogieIcfgContainer [2023-11-25 00:05:33,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:05:33,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:05:33,815 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:05:33,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:05:33,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:05:32" (1/3) ... [2023-11-25 00:05:33,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248dbd44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:05:33, skipping insertion in model container [2023-11-25 00:05:33,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:33" (2/3) ... [2023-11-25 00:05:33,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248dbd44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:05:33, skipping insertion in model container [2023-11-25 00:05:33,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:05:33" (3/3) ... [2023-11-25 00:05:33,822 INFO L112 eAbstractionObserver]: Analyzing ICFG array16_alloca_original.i [2023-11-25 00:05:33,844 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:05:33,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-25 00:05:33,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:05:33,898 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;@5a393809, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:05:33,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-25 00:05:33,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 18 states have internal predecessors, (22), 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) [2023-11-25 00:05:33,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-25 00:05:33,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:33,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-25 00:05:33,909 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-25 00:05:33,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:33,915 INFO L85 PathProgramCache]: Analyzing trace with hash 3143988, now seen corresponding path program 1 times [2023-11-25 00:05:33,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:33,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679418293] [2023-11-25 00:05:33,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:33,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:34,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:34,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679418293] [2023-11-25 00:05:34,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679418293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:34,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:34,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:05:34,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607470602] [2023-11-25 00:05:34,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:34,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:05:34,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:34,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:05:34,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:05:34,342 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 18 states have internal predecessors, (22), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2023-11-25 00:05:34,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:34,420 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2023-11-25 00:05:34,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:05:34,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 [2023-11-25 00:05:34,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:34,432 INFO L225 Difference]: With dead ends: 35 [2023-11-25 00:05:34,432 INFO L226 Difference]: Without dead ends: 30 [2023-11-25 00:05:34,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:05:34,447 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:34,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 43 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:05:34,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-25 00:05:34,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 20. [2023-11-25 00:05:34,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 19 states have internal predecessors, (23), 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) [2023-11-25 00:05:34,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-11-25 00:05:34,485 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 4 [2023-11-25 00:05:34,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:34,485 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-11-25 00:05:34,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2023-11-25 00:05:34,486 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-25 00:05:34,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-25 00:05:34,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:34,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-25 00:05:34,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:05:34,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-25 00:05:34,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:34,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1273816211, now seen corresponding path program 1 times [2023-11-25 00:05:34,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:34,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937757911] [2023-11-25 00:05:34,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:34,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:34,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:34,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:34,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937757911] [2023-11-25 00:05:34,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937757911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:34,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:34,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:05:34,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204254908] [2023-11-25 00:05:34,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:34,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:05:34,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:34,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:05:34,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:05:34,583 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-11-25 00:05:34,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:34,637 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2023-11-25 00:05:34,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:05:34,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2023-11-25 00:05:34,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:34,639 INFO L225 Difference]: With dead ends: 30 [2023-11-25 00:05:34,639 INFO L226 Difference]: Without dead ends: 28 [2023-11-25 00:05:34,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:05:34,641 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:34,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 31 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:05:34,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-25 00:05:34,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2023-11-25 00:05:34,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 23 states have internal predecessors, (28), 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) [2023-11-25 00:05:34,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-11-25 00:05:34,648 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 6 [2023-11-25 00:05:34,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:34,649 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-11-25 00:05:34,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-11-25 00:05:34,649 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-11-25 00:05:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-25 00:05:34,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:34,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-25 00:05:34,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:05:34,650 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-25 00:05:34,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:34,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1273816019, now seen corresponding path program 1 times [2023-11-25 00:05:34,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:34,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572489086] [2023-11-25 00:05:34,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:34,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:34,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:34,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572489086] [2023-11-25 00:05:34,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572489086] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:34,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:34,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:05:34,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318817199] [2023-11-25 00:05:34,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:34,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:05:34,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:34,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:05:34,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:05:34,785 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-11-25 00:05:34,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:34,856 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2023-11-25 00:05:34,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:05:34,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2023-11-25 00:05:34,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:34,858 INFO L225 Difference]: With dead ends: 28 [2023-11-25 00:05:34,858 INFO L226 Difference]: Without dead ends: 26 [2023-11-25 00:05:34,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:05:34,860 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:34,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 31 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:05:34,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-25 00:05:34,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-25 00:05:34,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 25 states have internal predecessors, (30), 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) [2023-11-25 00:05:34,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-11-25 00:05:34,873 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 6 [2023-11-25 00:05:34,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:34,873 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-11-25 00:05:34,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2023-11-25 00:05:34,873 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-11-25 00:05:34,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-25 00:05:34,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:34,874 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-25 00:05:34,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:05:34,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-25 00:05:34,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:34,876 INFO L85 PathProgramCache]: Analyzing trace with hash -826670021, now seen corresponding path program 1 times [2023-11-25 00:05:34,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:34,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365971625] [2023-11-25 00:05:34,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:34,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:35,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:35,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:35,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365971625] [2023-11-25 00:05:35,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365971625] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:05:35,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45305555] [2023-11-25 00:05:35,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:35,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:35,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:35,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:05:35,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:05:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:35,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:05:35,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:05:35,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:35,194 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:05:35,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45305555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:35,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-25 00:05:35,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-25 00:05:35,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581325306] [2023-11-25 00:05:35,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:35,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:05:35,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:35,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:05:35,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:05:35,208 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2023-11-25 00:05:35,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:35,284 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2023-11-25 00:05:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:05:35,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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 [2023-11-25 00:05:35,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:35,289 INFO L225 Difference]: With dead ends: 42 [2023-11-25 00:05:35,289 INFO L226 Difference]: Without dead ends: 41 [2023-11-25 00:05:35,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-25 00:05:35,296 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 32 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:35,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 80 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:05:35,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-25 00:05:35,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 25. [2023-11-25 00:05:35,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.45) internal successors, (29), 24 states have internal predecessors, (29), 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) [2023-11-25 00:05:35,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2023-11-25 00:05:35,311 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 7 [2023-11-25 00:05:35,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:35,311 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2023-11-25 00:05:35,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2023-11-25 00:05:35,312 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-25 00:05:35,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-25 00:05:35,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:35,313 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-25 00:05:35,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-25 00:05:35,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:35,519 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-25 00:05:35,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:35,519 INFO L85 PathProgramCache]: Analyzing trace with hash 143033188, now seen corresponding path program 1 times [2023-11-25 00:05:35,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:35,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4349671] [2023-11-25 00:05:35,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:35,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:35,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:35,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:35,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4349671] [2023-11-25 00:05:35,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4349671] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:05:35,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115486727] [2023-11-25 00:05:35,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:35,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:35,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:35,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:05:35,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-25 00:05:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:35,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:05:35,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:05:35,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:35,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:05:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:35,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115486727] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:05:35,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1087572031] [2023-11-25 00:05:35,869 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2023-11-25 00:05:35,869 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:05:35,876 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:05:35,881 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:05:35,882 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:05:37,067 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:05:37,636 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '387#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#t~malloc206#1.offset| 0) (<= 2147483647 |ULTIMATE.start_main_#t~post207#1|) (<= 2 |ULTIMATE.start_main_~arr~0#1.base|) (= |ULTIMATE.start_main_~arr~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~length~0#1|) (<= 2 |ULTIMATE.start_main_#t~malloc206#1.base|))' at error location [2023-11-25 00:05:37,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-25 00:05:37,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-25 00:05:37,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-25 00:05:37,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525812252] [2023-11-25 00:05:37,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-25 00:05:37,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-25 00:05:37,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:37,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-25 00:05:37,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-25 00:05:37,639 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 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) [2023-11-25 00:05:37,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:37,776 INFO L93 Difference]: Finished difference Result 99 states and 116 transitions. [2023-11-25 00:05:37,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-25 00:05:37,777 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 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 [2023-11-25 00:05:37,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:37,778 INFO L225 Difference]: With dead ends: 99 [2023-11-25 00:05:37,779 INFO L226 Difference]: Without dead ends: 98 [2023-11-25 00:05:37,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-11-25 00:05:37,780 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 84 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:37,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 83 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:05:37,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-25 00:05:37,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 34. [2023-11-25 00:05:37,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 33 states have internal predecessors, (41), 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) [2023-11-25 00:05:37,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2023-11-25 00:05:37,788 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 8 [2023-11-25 00:05:37,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:37,788 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2023-11-25 00:05:37,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 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) [2023-11-25 00:05:37,789 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2023-11-25 00:05:37,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-25 00:05:37,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:37,790 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-25 00:05:37,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-25 00:05:37,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:37,995 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-25 00:05:37,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:37,996 INFO L85 PathProgramCache]: Analyzing trace with hash -181109016, now seen corresponding path program 1 times [2023-11-25 00:05:37,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:37,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623282845] [2023-11-25 00:05:37,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:37,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-25 00:05:38,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:38,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623282845] [2023-11-25 00:05:38,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623282845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:38,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:38,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:05:38,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315054002] [2023-11-25 00:05:38,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:38,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:05:38,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:38,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:05:38,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:05:38,074 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-25 00:05:38,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:38,110 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2023-11-25 00:05:38,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:05:38,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2023-11-25 00:05:38,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:38,111 INFO L225 Difference]: With dead ends: 35 [2023-11-25 00:05:38,111 INFO L226 Difference]: Without dead ends: 34 [2023-11-25 00:05:38,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:05:38,114 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:38,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:05:38,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-25 00:05:38,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2023-11-25 00:05:38,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 32 states have internal predecessors, (40), 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) [2023-11-25 00:05:38,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2023-11-25 00:05:38,127 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 10 [2023-11-25 00:05:38,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:38,127 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-11-25 00:05:38,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-25 00:05:38,128 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-11-25 00:05:38,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-25 00:05:38,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:38,128 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:05:38,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-25 00:05:38,129 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-25 00:05:38,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:38,129 INFO L85 PathProgramCache]: Analyzing trace with hash -181108824, now seen corresponding path program 1 times [2023-11-25 00:05:38,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:38,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046962301] [2023-11-25 00:05:38,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:38,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:38,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-25 00:05:38,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:38,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046962301] [2023-11-25 00:05:38,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046962301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:38,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:38,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:05:38,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773270070] [2023-11-25 00:05:38,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:38,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:05:38,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:38,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:05:38,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:05:38,224 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-25 00:05:38,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:38,265 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2023-11-25 00:05:38,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:05:38,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2023-11-25 00:05:38,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:38,268 INFO L225 Difference]: With dead ends: 33 [2023-11-25 00:05:38,269 INFO L226 Difference]: Without dead ends: 32 [2023-11-25 00:05:38,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:05:38,270 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:38,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 18 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:05:38,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-25 00:05:38,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-25 00:05:38,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 31 states have internal predecessors, (39), 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) [2023-11-25 00:05:38,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2023-11-25 00:05:38,284 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 10 [2023-11-25 00:05:38,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:38,284 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2023-11-25 00:05:38,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-25 00:05:38,284 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-11-25 00:05:38,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-25 00:05:38,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:38,286 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-11-25 00:05:38,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-25 00:05:38,286 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-25 00:05:38,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:38,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1319412117, now seen corresponding path program 1 times [2023-11-25 00:05:38,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:38,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781128142] [2023-11-25 00:05:38,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:38,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:38,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-25 00:05:38,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:38,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781128142] [2023-11-25 00:05:38,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781128142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:38,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:38,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:05:38,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272680019] [2023-11-25 00:05:38,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:38,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:05:38,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:38,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:05:38,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:05:38,402 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-25 00:05:38,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:38,438 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2023-11-25 00:05:38,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:05:38,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2023-11-25 00:05:38,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:38,440 INFO L225 Difference]: With dead ends: 46 [2023-11-25 00:05:38,440 INFO L226 Difference]: Without dead ends: 32 [2023-11-25 00:05:38,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:05:38,441 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:38,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 32 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:05:38,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-25 00:05:38,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-25 00:05:38,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 31 states have internal predecessors, (38), 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) [2023-11-25 00:05:38,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2023-11-25 00:05:38,446 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 11 [2023-11-25 00:05:38,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:38,447 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2023-11-25 00:05:38,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-25 00:05:38,447 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-11-25 00:05:38,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-25 00:05:38,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:38,448 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:05:38,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-25 00:05:38,448 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-25 00:05:38,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:38,449 INFO L85 PathProgramCache]: Analyzing trace with hash -676909692, now seen corresponding path program 1 times [2023-11-25 00:05:38,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:38,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818242563] [2023-11-25 00:05:38,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:38,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:38,552 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-25 00:05:38,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:38,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818242563] [2023-11-25 00:05:38,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818242563] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:05:38,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724336485] [2023-11-25 00:05:38,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:38,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:38,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:38,556 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:05:38,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-25 00:05:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:38,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-25 00:05:38,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:05:38,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:38,731 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:05:38,820 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:38,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724336485] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:05:38,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1185518639] [2023-11-25 00:05:38,825 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2023-11-25 00:05:38,825 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:05:38,826 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:05:38,826 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:05:38,827 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:05:39,575 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:05:40,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1185518639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:40,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-25 00:05:40,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 8, 8] total 21 [2023-11-25 00:05:40,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138329151] [2023-11-25 00:05:40,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:40,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-25 00:05:40,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:40,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-25 00:05:40,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2023-11-25 00:05:40,101 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:05:40,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:40,815 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2023-11-25 00:05:40,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-25 00:05:40,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-25 00:05:40,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:40,816 INFO L225 Difference]: With dead ends: 33 [2023-11-25 00:05:40,816 INFO L226 Difference]: Without dead ends: 32 [2023-11-25 00:05:40,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 19 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2023-11-25 00:05:40,818 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 27 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:40,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 10 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:05:40,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-25 00:05:40,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2023-11-25 00:05:40,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 28 states have internal predecessors, (35), 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) [2023-11-25 00:05:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2023-11-25 00:05:40,827 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 14 [2023-11-25 00:05:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:40,828 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-11-25 00:05:40,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:05:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-11-25 00:05:40,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-25 00:05:40,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:40,829 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:05:40,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-25 00:05:41,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:41,030 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-25 00:05:41,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:41,030 INFO L85 PathProgramCache]: Analyzing trace with hash -676903734, now seen corresponding path program 1 times [2023-11-25 00:05:41,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:41,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827933554] [2023-11-25 00:05:41,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:41,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:41,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-25 00:05:41,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:41,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827933554] [2023-11-25 00:05:41,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827933554] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:05:41,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689588820] [2023-11-25 00:05:41,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:41,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:41,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:41,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:05:41,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-25 00:05:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:41,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-25 00:05:41,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:05:41,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:41,321 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:05:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:41,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689588820] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:05:41,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [756920935] [2023-11-25 00:05:41,410 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-11-25 00:05:41,410 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:05:41,411 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:05:41,411 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:05:41,411 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:05:42,359 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:05:43,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [756920935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:43,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-25 00:05:43,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 8, 8] total 22 [2023-11-25 00:05:43,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783465697] [2023-11-25 00:05:43,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:43,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-25 00:05:43,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:43,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-25 00:05:43,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2023-11-25 00:05:43,175 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2023-11-25 00:05:44,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:44,224 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2023-11-25 00:05:44,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-25 00:05:44,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-25 00:05:44,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:44,226 INFO L225 Difference]: With dead ends: 30 [2023-11-25 00:05:44,226 INFO L226 Difference]: Without dead ends: 18 [2023-11-25 00:05:44,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 18 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2023-11-25 00:05:44,227 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:44,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:05:44,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-25 00:05:44,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-25 00:05:44,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2023-11-25 00:05:44,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-11-25 00:05:44,236 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2023-11-25 00:05:44,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:44,236 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-11-25 00:05:44,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2023-11-25 00:05:44,237 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-11-25 00:05:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-25 00:05:44,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:44,238 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1] [2023-11-25 00:05:44,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-25 00:05:44,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:44,449 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-25 00:05:44,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:44,450 INFO L85 PathProgramCache]: Analyzing trace with hash -742739893, now seen corresponding path program 2 times [2023-11-25 00:05:44,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:44,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938921829] [2023-11-25 00:05:44,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:44,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:44,718 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:44,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:44,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938921829] [2023-11-25 00:05:44,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938921829] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:05:44,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332491797] [2023-11-25 00:05:44,719 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-25 00:05:44,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:44,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:44,721 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:05:44,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-25 00:05:44,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-25 00:05:44,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-25 00:05:44,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:05:44,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:05:44,904 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-25 00:05:44,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:05:44,949 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-25 00:05:44,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332491797] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:05:44,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [330131820] [2023-11-25 00:05:44,955 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2023-11-25 00:05:44,955 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:05:44,956 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:05:44,956 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:05:44,956 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-25 00:05:45,559 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-25 00:05:45,886 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1299#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_#t~malloc206#1.offset| 0) (<= 2147483647 |ULTIMATE.start_main_#t~post207#1|) (<= 2 |ULTIMATE.start_main_~arr~0#1.base|) (= |ULTIMATE.start_main_~arr~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~length~0#1|) (<= 2 |ULTIMATE.start_main_#t~malloc206#1.base|))' at error location [2023-11-25 00:05:45,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-25 00:05:45,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-25 00:05:45,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 2, 2] total 14 [2023-11-25 00:05:45,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737818068] [2023-11-25 00:05:45,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-25 00:05:45,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-25 00:05:45,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:45,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-25 00:05:45,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-11-25 00:05:45,888 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 states have internal predecessors, (31), 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) [2023-11-25 00:05:46,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:46,130 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2023-11-25 00:05:46,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-25 00:05:46,131 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 states have internal predecessors, (31), 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 17 [2023-11-25 00:05:46,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:46,132 INFO L225 Difference]: With dead ends: 21 [2023-11-25 00:05:46,132 INFO L226 Difference]: Without dead ends: 0 [2023-11-25 00:05:46,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2023-11-25 00:05:46,134 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:46,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:05:46,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-25 00:05:46,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-25 00:05:46,136 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) [2023-11-25 00:05:46,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-25 00:05:46,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2023-11-25 00:05:46,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:46,136 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-25 00:05:46,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 states have internal predecessors, (31), 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) [2023-11-25 00:05:46,137 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-25 00:05:46,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-25 00:05:46,139 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-25 00:05:46,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-25 00:05:46,140 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-25 00:05:46,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-25 00:05:46,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-25 00:05:46,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-25 00:05:46,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-25 00:05:46,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:46,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-25 00:05:46,948 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 379) no Hoare annotation was computed. [2023-11-25 00:05:46,948 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2023-11-25 00:05:46,948 INFO L895 garLoopResultBuilder]: At program point L378-2(lines 377 383) the Hoare annotation is: (or (and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (= |ULTIMATE.start_main_#t~malloc206#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~length~0#1_23| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~length~0#1_23| 2147483648)) (<= |v_ULTIMATE.start_main_~length~0#1_23| 2147483647) (or (and (<= 1 |v_ULTIMATE.start_main_~length~0#1_23|) (= |ULTIMATE.start_main_~length~0#1| |v_ULTIMATE.start_main_~length~0#1_23|)) (and (<= |v_ULTIMATE.start_main_~length~0#1_23| 0) (= |ULTIMATE.start_main_~length~0#1| 1))))) (exists ((|v_#valid_21| (Array Int Int))) (and (= (store |v_#valid_21| |ULTIMATE.start_main_#t~malloc206#1.base| 1) |#valid|) (= (select |v_#valid_21| 0) 0) (= (select |v_#valid_21| |ULTIMATE.start_main_#t~malloc206#1.base|) 0))) (= |ULTIMATE.start_main_~arr~0#1.offset| 0) (= |ULTIMATE.start_main_#t~malloc206#1.base| |ULTIMATE.start_main_~arr~0#1.base|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (exists ((|v_#length_8| (Array Int Int))) (= |#length| (store |v_#length_8| |ULTIMATE.start_main_#t~malloc206#1.base| (* (mod |ULTIMATE.start_main_~length~0#1| 4611686018427387904) 4)))) (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_main_#t~malloc206#1.base|)) (and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~length~0#1| 0) (= |ULTIMATE.start_main_~j~0#1| 0))) [2023-11-25 00:05:46,948 INFO L899 garLoopResultBuilder]: For program point L370-3(line 370) no Hoare annotation was computed. [2023-11-25 00:05:46,949 INFO L899 garLoopResultBuilder]: For program point L370-4(line 370) no Hoare annotation was computed. [2023-11-25 00:05:46,949 INFO L895 garLoopResultBuilder]: At program point L370-5(lines 370 375) the Hoare annotation is: (let ((.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (= |ULTIMATE.start_main_#t~malloc206#1.offset| 0)) (.cse2 (exists ((|v_ULTIMATE.start_main_~length~0#1_23| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~length~0#1_23| 2147483648)) (<= |v_ULTIMATE.start_main_~length~0#1_23| 2147483647) (or (and (<= 1 |v_ULTIMATE.start_main_~length~0#1_23|) (= |ULTIMATE.start_main_~length~0#1| |v_ULTIMATE.start_main_~length~0#1_23|)) (and (<= |v_ULTIMATE.start_main_~length~0#1_23| 0) (= |ULTIMATE.start_main_~length~0#1| 1)))))) (.cse3 (exists ((|v_#valid_21| (Array Int Int))) (and (= (store |v_#valid_21| |ULTIMATE.start_main_#t~malloc206#1.base| 1) |#valid|) (= (select |v_#valid_21| 0) 0) (= (select |v_#valid_21| |ULTIMATE.start_main_#t~malloc206#1.base|) 0)))) (.cse4 (= |ULTIMATE.start_main_~arr~0#1.offset| 0)) (.cse5 (= |ULTIMATE.start_main_#t~malloc206#1.base| |ULTIMATE.start_main_~arr~0#1.base|)) (.cse6 (exists ((|v_#length_9| (Array Int Int))) (= |#length| (store |v_#length_9| |ULTIMATE.start_main_#t~malloc206#1.base| (* (mod |ULTIMATE.start_main_~length~0#1| 4611686018427387904) 4))))) (.cse7 (<= (+ |#StackHeapBarrier| 1) |ULTIMATE.start_main_#t~malloc206#1.base|))) (or (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7))) [2023-11-25 00:05:46,949 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 364 385) no Hoare annotation was computed. [2023-11-25 00:05:46,949 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 370) no Hoare annotation was computed. [2023-11-25 00:05:46,949 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 381) no Hoare annotation was computed. [2023-11-25 00:05:46,949 INFO L899 garLoopResultBuilder]: For program point L379(line 379) no Hoare annotation was computed. [2023-11-25 00:05:46,949 INFO L899 garLoopResultBuilder]: For program point L379-1(line 379) no Hoare annotation was computed. [2023-11-25 00:05:46,950 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 370) no Hoare annotation was computed. [2023-11-25 00:05:46,950 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-25 00:05:46,950 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 381) no Hoare annotation was computed. [2023-11-25 00:05:46,950 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-25 00:05:46,951 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 379) no Hoare annotation was computed. [2023-11-25 00:05:46,951 INFO L899 garLoopResultBuilder]: For program point L381(line 381) no Hoare annotation was computed. [2023-11-25 00:05:46,951 INFO L899 garLoopResultBuilder]: For program point L381-1(line 381) no Hoare annotation was computed. [2023-11-25 00:05:46,951 INFO L899 garLoopResultBuilder]: For program point L369(line 369) no Hoare annotation was computed. [2023-11-25 00:05:46,954 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:05:46,957 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:05:46,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc206!offset could not be translated [2023-11-25 00:05:46,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~length~0#1_23 : int :: (0 <= v_ULTIMATE.start_main_~length~0#1_23 + 2147483648 && v_ULTIMATE.start_main_~length~0#1_23 <= 2147483647) && ((1 <= v_ULTIMATE.start_main_~length~0#1_23 && ~length~0 == v_ULTIMATE.start_main_~length~0#1_23) || (v_ULTIMATE.start_main_~length~0#1_23 <= 0 && ~length~0 == 1))) could not be translated [2023-11-25 00:05:46,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#valid_21 : [int]int :: (v_#valid_21[#t~malloc206!base := 1] == #valid && v_#valid_21[0] == 0) && v_#valid_21[#t~malloc206!base] == 0) could not be translated [2023-11-25 00:05:46,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc206!base could not be translated [2023-11-25 00:05:46,975 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#length_9 : [int]int :: #length == v_#length_9[#t~malloc206!base := ~length~0 % 4611686018427387904 * 4]) could not be translated [2023-11-25 00:05:46,975 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc206!base could not be translated [2023-11-25 00:05:46,975 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc206!offset could not be translated [2023-11-25 00:05:46,975 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~length~0#1_23 : int :: (0 <= v_ULTIMATE.start_main_~length~0#1_23 + 2147483648 && v_ULTIMATE.start_main_~length~0#1_23 <= 2147483647) && ((1 <= v_ULTIMATE.start_main_~length~0#1_23 && ~length~0 == v_ULTIMATE.start_main_~length~0#1_23) || (v_ULTIMATE.start_main_~length~0#1_23 <= 0 && ~length~0 == 1))) could not be translated [2023-11-25 00:05:46,976 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#valid_21 : [int]int :: (v_#valid_21[#t~malloc206!base := 1] == #valid && v_#valid_21[0] == 0) && v_#valid_21[#t~malloc206!base] == 0) could not be translated [2023-11-25 00:05:46,976 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc206!base could not be translated [2023-11-25 00:05:46,976 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#length_9 : [int]int :: #length == v_#length_9[#t~malloc206!base := ~length~0 % 4611686018427387904 * 4]) could not be translated [2023-11-25 00:05:46,976 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc206!base could not be translated [2023-11-25 00:05:46,982 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc206!offset could not be translated [2023-11-25 00:05:46,982 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~length~0#1_23 : int :: (0 <= v_ULTIMATE.start_main_~length~0#1_23 + 2147483648 && v_ULTIMATE.start_main_~length~0#1_23 <= 2147483647) && ((1 <= v_ULTIMATE.start_main_~length~0#1_23 && ~length~0 == v_ULTIMATE.start_main_~length~0#1_23) || (v_ULTIMATE.start_main_~length~0#1_23 <= 0 && ~length~0 == 1))) could not be translated [2023-11-25 00:05:46,983 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#valid_21 : [int]int :: (v_#valid_21[#t~malloc206!base := 1] == #valid && v_#valid_21[0] == 0) && v_#valid_21[#t~malloc206!base] == 0) could not be translated [2023-11-25 00:05:46,983 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc206!base could not be translated [2023-11-25 00:05:46,983 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_#length_8 : [int]int :: #length == v_#length_8[#t~malloc206!base := ~length~0 % 4611686018427387904 * 4]) could not be translated [2023-11-25 00:05:46,983 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~malloc206!base could not be translated [2023-11-25 00:05:46,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:05:46 BoogieIcfgContainer [2023-11-25 00:05:46,985 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:05:46,986 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:05:46,986 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:05:46,986 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:05:46,987 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:05:33" (3/4) ... [2023-11-25 00:05:46,989 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-25 00:05:46,998 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-25 00:05:46,999 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-25 00:05:46,999 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-25 00:05:46,999 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-25 00:05:47,113 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-25 00:05:47,115 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-25 00:05:47,115 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:05:47,116 INFO L158 Benchmark]: Toolchain (without parser) took 14514.78ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 128.9MB in the beginning and 68.9MB in the end (delta: 60.0MB). Peak memory consumption was 134.9MB. Max. memory is 16.1GB. [2023-11-25 00:05:47,116 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:05:47,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.36ms. Allocated memory is still 159.4MB. Free memory was 128.9MB in the beginning and 111.2MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-25 00:05:47,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.17ms. Allocated memory is still 159.4MB. Free memory was 111.2MB in the beginning and 109.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:05:47,118 INFO L158 Benchmark]: Boogie Preprocessor took 27.87ms. Allocated memory is still 159.4MB. Free memory was 109.1MB in the beginning and 107.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:05:47,119 INFO L158 Benchmark]: RCFGBuilder took 501.83ms. Allocated memory is still 159.4MB. Free memory was 107.9MB in the beginning and 94.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-25 00:05:47,119 INFO L158 Benchmark]: TraceAbstraction took 13170.55ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 93.3MB in the beginning and 74.1MB in the end (delta: 19.1MB). Peak memory consumption was 93.0MB. Max. memory is 16.1GB. [2023-11-25 00:05:47,120 INFO L158 Benchmark]: Witness Printer took 129.71ms. Allocated memory is still 232.8MB. Free memory was 74.1MB in the beginning and 68.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-25 00:05:47,125 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 632.36ms. Allocated memory is still 159.4MB. Free memory was 128.9MB in the beginning and 111.2MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.17ms. Allocated memory is still 159.4MB. Free memory was 111.2MB in the beginning and 109.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.87ms. Allocated memory is still 159.4MB. Free memory was 109.1MB in the beginning and 107.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 501.83ms. Allocated memory is still 159.4MB. Free memory was 107.9MB in the beginning and 94.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 13170.55ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 93.3MB in the beginning and 74.1MB in the end (delta: 19.1MB). Peak memory consumption was 93.0MB. Max. memory is 16.1GB. * Witness Printer took 129.71ms. Allocated memory is still 232.8MB. Free memory was 74.1MB in the beginning and 68.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc206!offset could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~length~0#1_23 : int :: (0 <= v_ULTIMATE.start_main_~length~0#1_23 + 2147483648 && v_ULTIMATE.start_main_~length~0#1_23 <= 2147483647) && ((1 <= v_ULTIMATE.start_main_~length~0#1_23 && ~length~0 == v_ULTIMATE.start_main_~length~0#1_23) || (v_ULTIMATE.start_main_~length~0#1_23 <= 0 && ~length~0 == 1))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#valid_21 : [int]int :: (v_#valid_21[#t~malloc206!base := 1] == #valid && v_#valid_21[0] == 0) && v_#valid_21[#t~malloc206!base] == 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc206!base could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#length_9 : [int]int :: #length == v_#length_9[#t~malloc206!base := ~length~0 % 4611686018427387904 * 4]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc206!base could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc206!offset could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~length~0#1_23 : int :: (0 <= v_ULTIMATE.start_main_~length~0#1_23 + 2147483648 && v_ULTIMATE.start_main_~length~0#1_23 <= 2147483647) && ((1 <= v_ULTIMATE.start_main_~length~0#1_23 && ~length~0 == v_ULTIMATE.start_main_~length~0#1_23) || (v_ULTIMATE.start_main_~length~0#1_23 <= 0 && ~length~0 == 1))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#valid_21 : [int]int :: (v_#valid_21[#t~malloc206!base := 1] == #valid && v_#valid_21[0] == 0) && v_#valid_21[#t~malloc206!base] == 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc206!base could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#length_9 : [int]int :: #length == v_#length_9[#t~malloc206!base := ~length~0 % 4611686018427387904 * 4]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc206!base could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc206!offset could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~length~0#1_23 : int :: (0 <= v_ULTIMATE.start_main_~length~0#1_23 + 2147483648 && v_ULTIMATE.start_main_~length~0#1_23 <= 2147483647) && ((1 <= v_ULTIMATE.start_main_~length~0#1_23 && ~length~0 == v_ULTIMATE.start_main_~length~0#1_23) || (v_ULTIMATE.start_main_~length~0#1_23 <= 0 && ~length~0 == 1))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#valid_21 : [int]int :: (v_#valid_21[#t~malloc206!base := 1] == #valid && v_#valid_21[0] == 0) && v_#valid_21[#t~malloc206!base] == 0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc206!base could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_#length_8 : [int]int :: #length == v_#length_8[#t~malloc206!base := ~length~0 % 4611686018427387904 * 4]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~malloc206!base could not be translated * 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: 370]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 370]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 379]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 379]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 381]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 381]: 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, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 13.1s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 234 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 234 mSDsluCounter, 352 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 247 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 324 IncrementalHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 105 mSDtfsCounter, 324 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 243 GetRequests, 100 SyntacticMatches, 21 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=5, InterpolantAutomatonStates: 71, 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, 98 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 11 NumberOfFragments, 243 HoareAnnotationTreeSize, 2 FomulaSimplifications, 836 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 2 FomulaSimplificationsInter, 947 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 167 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 598 SizeOfPredicates, 19 NumberOfNonLiveVariables, 289 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 69/136 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: OVERALL_TIME: 1.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 21, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 60, TOOLS_POST_TIME: 1.4s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 60, TOOLS_QUANTIFIERELIM_TIME: 1.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 110, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 7, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 11, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 21, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME: 1.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 11, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 263, DAG_COMPRESSION_RETAINED_NODES: 74, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 370]: Loop Invariant Derived loop invariant: ((i == 0) || ((1 <= i) && (i <= 2147483647))) - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: (((i <= 2147483647) && (0 <= i)) || (((i == 0) && (length <= 0)) && (j == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-25 00:05:47,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f423cdc3-5396-4506-8813-1c59208f4a1a/bin/utaipan-verify-SwPr7d2a91/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