./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/aaron3-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/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_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/aaron3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/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_8896cb58-9c30-4a8c-b664-7c397a8ea993/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 ea9406930e45e60de12baf697b969fb5af8dbe89b8e2edfb7dfc533c91e7fcaa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:56:50,445 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:56:50,516 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-24 23:56:50,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:56:50,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:56:50,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:56:50,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:56:50,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:56:50,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:56:50,554 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:56:50,555 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:56:50,555 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:56:50,556 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:56:50,557 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:56:50,557 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:56:50,558 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:56:50,558 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:56:50,559 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:56:50,559 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:56:50,560 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:56:50,561 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:56:50,562 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:56:50,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:56:50,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:56:50,563 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:56:50,564 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:56:50,564 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:56:50,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:56:50,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:56:50,566 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:56:50,566 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:56:50,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:56:50,567 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:56:50,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:56:50,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:56:50,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:56:50,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:50,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:56:50,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:56:50,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:56:50,572 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:56:50,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:56:50,572 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:56:50,573 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:56:50,573 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:56:50,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:56:50,574 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_8896cb58-9c30-4a8c-b664-7c397a8ea993/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea9406930e45e60de12baf697b969fb5af8dbe89b8e2edfb7dfc533c91e7fcaa [2023-11-24 23:56:50,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:56:50,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:56:50,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:56:50,897 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:56:50,898 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:56:50,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/termination-crafted/aaron3-1.c [2023-11-24 23:56:54,192 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:56:54,410 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:56:54,410 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/sv-benchmarks/c/termination-crafted/aaron3-1.c [2023-11-24 23:56:54,426 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/data/aba3e172d/93ea07a4eca947cca7bca4476674420e/FLAG381955317 [2023-11-24 23:56:54,443 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/data/aba3e172d/93ea07a4eca947cca7bca4476674420e [2023-11-24 23:56:54,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:56:54,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:56:54,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:54,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:56:54,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:56:54,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf21340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54, skipping insertion in model container [2023-11-24 23:56:54,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,490 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:56:54,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:54,670 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:56:54,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:54,697 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:56:54,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54 WrapperNode [2023-11-24 23:56:54,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:54,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:54,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:56:54,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:56:54,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,740 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2023-11-24 23:56:54,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:54,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:56:54,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:56:54,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:56:54,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,762 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,763 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:56:54,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:56:54,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:56:54,770 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:56:54,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54" (1/1) ... [2023-11-24 23:56:54,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:54,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:54,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:56:54,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:56:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:56:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:56:54,918 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:56:54,920 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:56:55,053 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:56:55,084 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:56:55,084 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:56:55,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:55 BoogieIcfgContainer [2023-11-24 23:56:55,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:56:55,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:56:55,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:56:55,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:56:55,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:56:54" (1/3) ... [2023-11-24 23:56:55,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@886933f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:55, skipping insertion in model container [2023-11-24 23:56:55,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:54" (2/3) ... [2023-11-24 23:56:55,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@886933f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:55, skipping insertion in model container [2023-11-24 23:56:55,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:55" (3/3) ... [2023-11-24 23:56:55,096 INFO L112 eAbstractionObserver]: Analyzing ICFG aaron3-1.c [2023-11-24 23:56:55,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:56:55,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-24 23:56:55,174 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:56:55,182 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;@1f43ec97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:56:55,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-24 23:56:55,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 24 states have internal predecessors, (33), 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) [2023-11-24 23:56:55,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:56:55,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:55,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:55,195 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)] === [2023-11-24 23:56:55,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:55,201 INFO L85 PathProgramCache]: Analyzing trace with hash 464864814, now seen corresponding path program 1 times [2023-11-24 23:56:55,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:55,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517135512] [2023-11-24 23:56:55,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:55,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:55,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:55,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:55,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517135512] [2023-11-24 23:56:55,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517135512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:55,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:55,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:56:55,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867718008] [2023-11-24 23:56:55,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:55,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:56:55,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:55,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:56:55,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:56:55,462 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 24 states have internal predecessors, (33), 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 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:55,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:55,577 INFO L93 Difference]: Finished difference Result 47 states and 58 transitions. [2023-11-24 23:56:55,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:56:55,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-24 23:56:55,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:55,627 INFO L225 Difference]: With dead ends: 47 [2023-11-24 23:56:55,627 INFO L226 Difference]: Without dead ends: 37 [2023-11-24 23:56:55,631 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 [2023-11-24 23:56:55,635 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 42 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:55,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 54 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:56:55,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-24 23:56:55,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2023-11-24 23:56:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 29 states have internal predecessors, (37), 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) [2023-11-24 23:56:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2023-11-24 23:56:55,712 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 8 [2023-11-24 23:56:55,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:55,713 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2023-11-24 23:56:55,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:55,713 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-24 23:56:55,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:56:55,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:55,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:55,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:56:55,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 23:56:55,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:55,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1525907410, now seen corresponding path program 1 times [2023-11-24 23:56:55,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:55,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963199652] [2023-11-24 23:56:55,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:55,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:55,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:55,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:55,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963199652] [2023-11-24 23:56:55,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963199652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:55,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:55,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:56:55,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75496622] [2023-11-24 23:56:55,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:55,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:56:55,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:55,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:56:55,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:56:55,793 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 4 states, 3 states have (on average 3.0) 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) [2023-11-24 23:56:55,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:55,849 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2023-11-24 23:56:55,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:56:55,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) 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 9 [2023-11-24 23:56:55,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:55,851 INFO L225 Difference]: With dead ends: 37 [2023-11-24 23:56:55,851 INFO L226 Difference]: Without dead ends: 36 [2023-11-24 23:56:55,852 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 [2023-11-24 23:56:55,854 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 30 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:55,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 42 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:56:55,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-24 23:56:55,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2023-11-24 23:56:55,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.5) internal successors, (36), 29 states have internal predecessors, (36), 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) [2023-11-24 23:56:55,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2023-11-24 23:56:55,862 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 9 [2023-11-24 23:56:55,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:55,863 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2023-11-24 23:56:55,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) 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) [2023-11-24 23:56:55,863 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2023-11-24 23:56:55,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:56:55,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:55,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:55,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:56:55,865 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)] === [2023-11-24 23:56:55,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:55,866 INFO L85 PathProgramCache]: Analyzing trace with hash 58678580, now seen corresponding path program 1 times [2023-11-24 23:56:55,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:55,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685490379] [2023-11-24 23:56:55,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:55,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:55,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:55,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:55,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685490379] [2023-11-24 23:56:55,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685490379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:55,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:55,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:56:55,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181658506] [2023-11-24 23:56:55,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:55,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:55,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:55,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:55,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:55,915 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2023-11-24 23:56:55,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:55,943 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2023-11-24 23:56:55,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:55,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2023-11-24 23:56:55,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:55,947 INFO L225 Difference]: With dead ends: 57 [2023-11-24 23:56:55,947 INFO L226 Difference]: Without dead ends: 30 [2023-11-24 23:56:55,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:55,950 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:55,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:56:55,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-24 23:56:55,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-24 23:56:55,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 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) [2023-11-24 23:56:55,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2023-11-24 23:56:55,957 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 10 [2023-11-24 23:56:55,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:55,957 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2023-11-24 23:56:55,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2023-11-24 23:56:55,958 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-11-24 23:56:55,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:56:55,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:55,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:55,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:56:55,959 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 23:56:55,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:55,963 INFO L85 PathProgramCache]: Analyzing trace with hash 373862392, now seen corresponding path program 1 times [2023-11-24 23:56:55,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:55,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39288831] [2023-11-24 23:56:55,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:55,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:56,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:56,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39288831] [2023-11-24 23:56:56,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39288831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:56,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:56,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:56:56,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753575468] [2023-11-24 23:56:56,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:56,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:56,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:56,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:56,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:56,069 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:56,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:56,090 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2023-11-24 23:56:56,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:56,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-24 23:56:56,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:56,092 INFO L225 Difference]: With dead ends: 30 [2023-11-24 23:56:56,093 INFO L226 Difference]: Without dead ends: 29 [2023-11-24 23:56:56,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:56,097 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:56,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:56:56,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-24 23:56:56,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-24 23:56:56,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 28 states have internal predecessors, (32), 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) [2023-11-24 23:56:56,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-11-24 23:56:56,114 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 12 [2023-11-24 23:56:56,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:56,115 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-24 23:56:56,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:56,115 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-11-24 23:56:56,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:56:56,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:56,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:56,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:56:56,117 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 23:56:56,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:56,118 INFO L85 PathProgramCache]: Analyzing trace with hash 373862040, now seen corresponding path program 1 times [2023-11-24 23:56:56,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:56,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165426258] [2023-11-24 23:56:56,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:56,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:56,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:56,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:56,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165426258] [2023-11-24 23:56:56,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165426258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:56,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:56,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:56:56,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596617446] [2023-11-24 23:56:56,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:56,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:56,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:56,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:56,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:56,174 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:56,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:56,199 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2023-11-24 23:56:56,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:56,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-24 23:56:56,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:56,201 INFO L225 Difference]: With dead ends: 33 [2023-11-24 23:56:56,202 INFO L226 Difference]: Without dead ends: 32 [2023-11-24 23:56:56,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:56,208 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:56,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:56:56,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-24 23:56:56,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2023-11-24 23:56:56,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 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) [2023-11-24 23:56:56,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-11-24 23:56:56,215 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 12 [2023-11-24 23:56:56,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:56,215 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-11-24 23:56:56,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:56,216 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-11-24 23:56:56,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:56:56,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:56,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:56,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:56:56,217 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 23:56:56,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:56,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1295167646, now seen corresponding path program 1 times [2023-11-24 23:56:56,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:56,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210872350] [2023-11-24 23:56:56,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:56,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:56,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:56,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:56,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210872350] [2023-11-24 23:56:56,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210872350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:56,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:56,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:56:56,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865080672] [2023-11-24 23:56:56,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:56,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:56,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:56,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:56,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:56,271 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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) [2023-11-24 23:56:56,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:56,303 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2023-11-24 23:56:56,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:56,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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 13 [2023-11-24 23:56:56,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:56,308 INFO L225 Difference]: With dead ends: 55 [2023-11-24 23:56:56,308 INFO L226 Difference]: Without dead ends: 54 [2023-11-24 23:56:56,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:56,310 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:56,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 34 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:56:56,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-24 23:56:56,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2023-11-24 23:56:56,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 49 states have internal predecessors, (59), 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) [2023-11-24 23:56:56,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2023-11-24 23:56:56,328 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 13 [2023-11-24 23:56:56,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:56,328 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2023-11-24 23:56:56,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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) [2023-11-24 23:56:56,329 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2023-11-24 23:56:56,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:56:56,329 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:56,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:56,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:56:56,330 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 23:56:56,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:56,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1295178569, now seen corresponding path program 1 times [2023-11-24 23:56:56,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:56,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174058413] [2023-11-24 23:56:56,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:56,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:56,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:56,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:56,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174058413] [2023-11-24 23:56:56,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174058413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:56,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:56,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:56:56,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031499749] [2023-11-24 23:56:56,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:56,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:56,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:56,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:56,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:56,416 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2023-11-24 23:56:56,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:56,455 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2023-11-24 23:56:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:56,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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 13 [2023-11-24 23:56:56,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:56,457 INFO L225 Difference]: With dead ends: 50 [2023-11-24 23:56:56,461 INFO L226 Difference]: Without dead ends: 49 [2023-11-24 23:56:56,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:56,462 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:56,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:56:56,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-24 23:56:56,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-24 23:56:56,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 48 states have internal predecessors, (57), 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) [2023-11-24 23:56:56,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2023-11-24 23:56:56,472 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 13 [2023-11-24 23:56:56,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:56,472 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2023-11-24 23:56:56,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2023-11-24 23:56:56,472 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2023-11-24 23:56:56,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 23:56:56,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:56,473 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:56,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 23:56:56,474 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 23:56:56,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:56,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1982530082, now seen corresponding path program 1 times [2023-11-24 23:56:56,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:56,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130464508] [2023-11-24 23:56:56,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:56,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:56,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:56,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:56,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130464508] [2023-11-24 23:56:56,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130464508] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:56:56,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048021655] [2023-11-24 23:56:56,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:56,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:56:56,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:56,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:56:56,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:56:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:56,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:56:56,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:56:56,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:56,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:56:56,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:56,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048021655] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:56:56,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2101371044] [2023-11-24 23:56:56,968 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-11-24 23:56:56,968 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:56:56,973 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:56:56,979 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:56:56,980 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:56:58,071 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:56:59,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2101371044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:59,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:56:59,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [4, 4, 4] total 20 [2023-11-24 23:56:59,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847571687] [2023-11-24 23:56:59,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:59,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-24 23:56:59,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:59,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-24 23:56:59,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2023-11-24 23:56:59,590 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:00,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:00,645 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2023-11-24 23:57:00,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-24 23:57:00,645 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-24 23:57:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:00,646 INFO L225 Difference]: With dead ends: 79 [2023-11-24 23:57:00,646 INFO L226 Difference]: Without dead ends: 76 [2023-11-24 23:57:00,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=295, Invalid=635, Unknown=0, NotChecked=0, Total=930 [2023-11-24 23:57:00,648 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:00,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 18 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 23:57:00,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-24 23:57:00,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 40. [2023-11-24 23:57:00,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 39 states have internal predecessors, (44), 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) [2023-11-24 23:57:00,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2023-11-24 23:57:00,657 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 17 [2023-11-24 23:57:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:00,657 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2023-11-24 23:57:00,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2023-11-24 23:57:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 23:57:00,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:00,658 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:00,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:57:00,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:57:00,870 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 23:57:00,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:00,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1791888791, now seen corresponding path program 1 times [2023-11-24 23:57:00,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:00,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869136644] [2023-11-24 23:57:00,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:00,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:00,916 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:00,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:00,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869136644] [2023-11-24 23:57:00,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869136644] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:57:00,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422959453] [2023-11-24 23:57:00,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:00,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:57:00,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:57:00,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:57:00,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 23:57:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:00,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:57:00,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:00,994 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:00,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:57:01,030 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:57:01,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422959453] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:57:01,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1654770487] [2023-11-24 23:57:01,037 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2023-11-24 23:57:01,037 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:57:01,037 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:57:01,037 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:57:01,038 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:57:01,187 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:57:01,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1654770487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:01,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:57:01,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [3, 3, 3] total 15 [2023-11-24 23:57:01,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74395217] [2023-11-24 23:57:01,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:01,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 23:57:01,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:01,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 23:57:01,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-24 23:57:01,752 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:01,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:01,894 INFO L93 Difference]: Finished difference Result 96 states and 106 transitions. [2023-11-24 23:57:01,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 23:57:01,894 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-11-24 23:57:01,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:01,895 INFO L225 Difference]: With dead ends: 96 [2023-11-24 23:57:01,896 INFO L226 Difference]: Without dead ends: 95 [2023-11-24 23:57:01,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-24 23:57:01,897 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:01,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 12 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:57:01,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-11-24 23:57:01,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 54. [2023-11-24 23:57:01,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.2) internal successors, (60), 53 states have internal predecessors, (60), 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) [2023-11-24 23:57:01,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2023-11-24 23:57:01,913 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 21 [2023-11-24 23:57:01,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:01,913 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2023-11-24 23:57:01,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:01,914 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2023-11-24 23:57:01,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:57:01,915 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:01,915 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:01,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:57:02,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-24 23:57:02,120 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 23:57:02,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1171154541, now seen corresponding path program 1 times [2023-11-24 23:57:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:02,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426061774] [2023-11-24 23:57:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:02,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:02,206 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:57:02,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:02,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426061774] [2023-11-24 23:57:02,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426061774] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:57:02,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745013887] [2023-11-24 23:57:02,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:02,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:57:02,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:57:02,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:57:02,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 23:57:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:02,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:57:02,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:02,357 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:57:02,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:57:02,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:57:02,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745013887] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:57:02,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1332644784] [2023-11-24 23:57:02,427 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-11-24 23:57:02,428 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:57:02,428 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:57:02,428 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:57:02,428 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:57:02,746 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:57:03,414 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1368#(and (<= |ULTIMATE.start_main_~x~0#1| 1073741823) (<= 0 (+ 1073741823 |ULTIMATE.start_main_~x~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_#t~short4#1| (<= (+ 2147483649 |ULTIMATE.start_main_~tx~0#1| |ULTIMATE.start_main_~z~0#1|) 0) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~z~0#1|)) (<= 0 (+ 1073741823 |ULTIMATE.start_main_~tx~0#1|)))' at error location [2023-11-24 23:57:03,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-24 23:57:03,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:57:03,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-24 23:57:03,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882365062] [2023-11-24 23:57:03,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 23:57:03,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 23:57:03,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:03,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 23:57:03,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2023-11-24 23:57:03,417 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 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) [2023-11-24 23:57:03,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:03,521 INFO L93 Difference]: Finished difference Result 101 states and 112 transitions. [2023-11-24 23:57:03,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-24 23:57:03,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-24 23:57:03,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:03,524 INFO L225 Difference]: With dead ends: 101 [2023-11-24 23:57:03,524 INFO L226 Difference]: Without dead ends: 99 [2023-11-24 23:57:03,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2023-11-24 23:57:03,526 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 39 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:03,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 68 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:57:03,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-24 23:57:03,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2023-11-24 23:57:03,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 86 states have (on average 1.186046511627907) internal successors, (102), 89 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:03,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2023-11-24 23:57:03,540 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 25 [2023-11-24 23:57:03,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:03,541 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2023-11-24 23:57:03,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 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) [2023-11-24 23:57:03,541 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2023-11-24 23:57:03,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 23:57:03,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:03,542 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:03,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-24 23:57:03,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-24 23:57:03,748 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)] === [2023-11-24 23:57:03,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:03,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1946052339, now seen corresponding path program 1 times [2023-11-24 23:57:03,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:03,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938531598] [2023-11-24 23:57:03,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:03,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:03,811 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:57:03,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:03,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938531598] [2023-11-24 23:57:03,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938531598] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:57:03,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600544698] [2023-11-24 23:57:03,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:03,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:57:03,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:57:03,813 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:57:03,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 23:57:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:03,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:57:03,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:04,080 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:57:04,080 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:57:04,152 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:57:04,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600544698] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:57:04,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2146667484] [2023-11-24 23:57:04,155 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-11-24 23:57:04,156 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:57:04,156 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:57:04,156 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:57:04,156 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:57:04,446 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:57:05,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2146667484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:05,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:57:05,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4, 4] total 21 [2023-11-24 23:57:05,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089464745] [2023-11-24 23:57:05,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:05,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-24 23:57:05,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:05,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-24 23:57:05,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2023-11-24 23:57:05,168 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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) [2023-11-24 23:57:06,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:06,038 INFO L93 Difference]: Finished difference Result 110 states and 129 transitions. [2023-11-24 23:57:06,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-24 23:57:06,039 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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) Word has length 26 [2023-11-24 23:57:06,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:06,040 INFO L225 Difference]: With dead ends: 110 [2023-11-24 23:57:06,040 INFO L226 Difference]: Without dead ends: 107 [2023-11-24 23:57:06,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=385, Invalid=875, Unknown=0, NotChecked=0, Total=1260 [2023-11-24 23:57:06,043 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:06,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 23:57:06,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-24 23:57:06,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 66. [2023-11-24 23:57:06,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.1076923076923078) internal successors, (72), 65 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:57:06,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2023-11-24 23:57:06,057 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 26 [2023-11-24 23:57:06,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:06,057 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2023-11-24 23:57:06,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 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) [2023-11-24 23:57:06,058 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2023-11-24 23:57:06,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 23:57:06,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:06,060 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:06,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-24 23:57:06,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-24 23:57:06,277 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 23:57:06,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:06,278 INFO L85 PathProgramCache]: Analyzing trace with hash -631828397, now seen corresponding path program 2 times [2023-11-24 23:57:06,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:06,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992272669] [2023-11-24 23:57:06,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:06,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:06,669 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:57:06,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:06,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992272669] [2023-11-24 23:57:06,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992272669] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:57:06,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802556360] [2023-11-24 23:57:06,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-24 23:57:06,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:57:06,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:57:06,671 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:57:06,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 23:57:06,751 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-24 23:57:06,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 23:57:06,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-24 23:57:06,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:57:06,994 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:57:06,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:57:07,314 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:57:07,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802556360] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:57:07,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2109653852] [2023-11-24 23:57:07,317 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2023-11-24 23:57:07,317 INFO L166 IcfgInterpreter]: Building call graph [2023-11-24 23:57:07,317 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-24 23:57:07,317 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-24 23:57:07,318 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-24 23:57:07,647 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-24 23:57:08,897 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2268#(and (<= |ULTIMATE.start_main_~x~0#1| 1073741823) (<= 0 (+ 1073741823 |ULTIMATE.start_main_~x~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_#t~short4#1| (<= (+ 2147483649 |ULTIMATE.start_main_~tx~0#1| |ULTIMATE.start_main_~z~0#1|) 0) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~z~0#1|)) (<= 0 (+ 1073741823 |ULTIMATE.start_main_~tx~0#1|)))' at error location [2023-11-24 23:57:08,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-24 23:57:08,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 23:57:08,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 26 [2023-11-24 23:57:08,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891991329] [2023-11-24 23:57:08,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 23:57:08,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-24 23:57:08,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:08,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-24 23:57:08,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1337, Unknown=0, NotChecked=0, Total=1560 [2023-11-24 23:57:08,900 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand has 27 states, 26 states have (on average 4.115384615384615) internal successors, (107), 27 states have internal predecessors, (107), 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) [2023-11-24 23:57:09,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:09,823 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2023-11-24 23:57:09,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-24 23:57:09,824 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.115384615384615) internal successors, (107), 27 states have internal predecessors, (107), 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 43 [2023-11-24 23:57:09,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:09,824 INFO L225 Difference]: With dead ends: 99 [2023-11-24 23:57:09,825 INFO L226 Difference]: Without dead ends: 0 [2023-11-24 23:57:09,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 95 SyntacticMatches, 6 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 903 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=572, Invalid=2620, Unknown=0, NotChecked=0, Total=3192 [2023-11-24 23:57:09,828 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 133 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:09,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 159 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 23:57:09,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-24 23:57:09,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-24 23:57:09,830 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) [2023-11-24 23:57:09,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-24 23:57:09,831 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2023-11-24 23:57:09,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:09,833 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-24 23:57:09,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.115384615384615) internal successors, (107), 27 states have internal predecessors, (107), 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) [2023-11-24 23:57:09,833 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-24 23:57:09,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:57:09,836 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-24 23:57:09,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-24 23:57:09,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-24 23:57:09,837 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-24 23:57:09,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-24 23:57:09,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-24 23:57:09,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:57:10,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-24 23:57:10,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-24 23:57:10,622 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-24 23:57:10,622 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-11-24 23:57:10,622 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 34) no Hoare annotation was computed. [2023-11-24 23:57:10,622 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 26 35) the Hoare annotation is: (let ((.cse6 (<= |ULTIMATE.start_main_~z~0#1| 1073741823)) (.cse0 (<= |ULTIMATE.start_main_~x~0#1| 1073741823)) (.cse7 (<= 0 (+ 1073741823 |ULTIMATE.start_main_~z~0#1|))) (.cse1 (<= 0 (+ 1073741823 |ULTIMATE.start_main_~x~0#1|))) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 1073741823)) (.cse3 (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) (.cse8 (<= |ULTIMATE.start_main_~tx~0#1| 1073741823)) (.cse4 (<= 0 (+ 1073741823 |ULTIMATE.start_main_~tx~0#1|)))) (or (let ((.cse5 (+ 1073741824 |ULTIMATE.start_main_~z~0#1|))) (and .cse0 .cse1 (or (and (<= |ULTIMATE.start_main_~z~0#1| 1073741822) .cse2 .cse3 .cse4 (<= 0 .cse5)) (and .cse6 .cse7 .cse3 (<= |ULTIMATE.start_main_~y~0#1| 1073741824) .cse4)) (<= |ULTIMATE.start_main_~tx~0#1| .cse5) .cse8)) (and .cse6 .cse0 .cse7 .cse1 .cse2 .cse3 .cse8 .cse4))) [2023-11-24 23:57:10,623 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2023-11-24 23:57:10,623 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 15 37) no Hoare annotation was computed. [2023-11-24 23:57:10,623 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2023-11-24 23:57:10,623 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-24 23:57:10,623 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-11-24 23:57:10,624 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2023-11-24 23:57:10,624 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2023-11-24 23:57:10,624 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2023-11-24 23:57:10,624 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-11-24 23:57:10,624 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-24 23:57:10,624 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2023-11-24 23:57:10,624 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-24 23:57:10,625 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2023-11-24 23:57:10,625 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-24 23:57:10,625 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-24 23:57:10,625 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2023-11-24 23:57:10,625 INFO L899 garLoopResultBuilder]: For program point L26-2(line 26) no Hoare annotation was computed. [2023-11-24 23:57:10,625 INFO L899 garLoopResultBuilder]: For program point L26-3(line 26) no Hoare annotation was computed. [2023-11-24 23:57:10,625 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-11-24 23:57:10,626 INFO L899 garLoopResultBuilder]: For program point L26-5(lines 26 35) no Hoare annotation was computed. [2023-11-24 23:57:10,626 INFO L899 garLoopResultBuilder]: For program point L26-7(lines 26 35) no Hoare annotation was computed. [2023-11-24 23:57:10,629 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:57:10,631 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:57:10,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:57:10 BoogieIcfgContainer [2023-11-24 23:57:10,652 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:57:10,653 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:57:10,653 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:57:10,653 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:57:10,654 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:55" (3/4) ... [2023-11-24 23:57:10,655 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:57:10,663 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-24 23:57:10,664 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:57:10,664 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-24 23:57:10,753 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-24 23:57:10,753 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-24 23:57:10,753 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:57:10,754 INFO L158 Benchmark]: Toolchain (without parser) took 16307.22ms. Allocated memory was 159.4MB in the beginning and 243.3MB in the end (delta: 83.9MB). Free memory was 114.4MB in the beginning and 208.9MB in the end (delta: -94.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:57:10,754 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory was 88.3MB in the beginning and 88.3MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:57:10,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.23ms. Allocated memory is still 159.4MB. Free memory was 114.4MB in the beginning and 103.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:57:10,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.67ms. Allocated memory is still 159.4MB. Free memory was 103.9MB in the beginning and 102.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:57:10,756 INFO L158 Benchmark]: Boogie Preprocessor took 25.22ms. Allocated memory is still 159.4MB. Free memory was 102.6MB in the beginning and 101.8MB in the end (delta: 743.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:57:10,756 INFO L158 Benchmark]: RCFGBuilder took 316.90ms. Allocated memory is still 159.4MB. Free memory was 101.8MB in the beginning and 90.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:57:10,756 INFO L158 Benchmark]: TraceAbstraction took 15563.59ms. Allocated memory was 159.4MB in the beginning and 243.3MB in the end (delta: 83.9MB). Free memory was 90.0MB in the beginning and 213.1MB in the end (delta: -123.1MB). Peak memory consumption was 105.3MB. Max. memory is 16.1GB. [2023-11-24 23:57:10,757 INFO L158 Benchmark]: Witness Printer took 100.85ms. Allocated memory is still 243.3MB. Free memory was 213.1MB in the beginning and 208.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:57:10,759 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory was 88.3MB in the beginning and 88.3MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.23ms. Allocated memory is still 159.4MB. Free memory was 114.4MB in the beginning and 103.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.67ms. Allocated memory is still 159.4MB. Free memory was 103.9MB in the beginning and 102.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.22ms. Allocated memory is still 159.4MB. Free memory was 102.6MB in the beginning and 101.8MB in the end (delta: 743.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.90ms. Allocated memory is still 159.4MB. Free memory was 101.8MB in the beginning and 90.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 15563.59ms. Allocated memory was 159.4MB in the beginning and 243.3MB in the end (delta: 83.9MB). Free memory was 90.0MB in the beginning and 213.1MB in the end (delta: -123.1MB). Peak memory consumption was 105.3MB. Max. memory is 16.1GB. * Witness Printer took 100.85ms. Allocated memory is still 243.3MB. Free memory was 213.1MB in the beginning and 208.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: 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, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 15.5s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 424 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 424 mSDsluCounter, 482 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 303 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 920 IncrementalHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 179 mSDtfsCounter, 920 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 473 GetRequests, 291 SyntacticMatches, 16 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1621 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=10, InterpolantAutomatonStates: 106, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 146 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 12 NumberOfFragments, 96 HoareAnnotationTreeSize, 1 FomulaSimplifications, 3896 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 1 FomulaSimplificationsInter, 1292 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 341 NumberOfCodeBlocks, 333 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 451 ConstructedInterpolants, 0 QuantifiedInterpolants, 2312 SizeOfPredicates, 8 NumberOfNonLiveVariables, 266 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 22 InterpolantComputations, 7 PerfectInterpolantSequences, 50/282 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: 1.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 50, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 103, TOOLS_POST_TIME: 1.2s, 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: 103, TOOLS_QUANTIFIERELIM_TIME: 1.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 165, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 14, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 50, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 0.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, 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: 649, DAG_COMPRESSION_RETAINED_NODES: 146, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((((((x <= 1073741823) && (0 <= (1073741823 + x))) && ((((((z <= 1073741822) && (y <= 1073741823)) && (0 <= (y + 2147483648))) && (0 <= (1073741823 + x))) && (0 <= (1073741824 + z))) || (((((z <= 1073741823) && (0 <= (1073741823 + z))) && (0 <= (y + 2147483648))) && (y <= 1073741824)) && (0 <= (1073741823 + x))))) && (x <= (1073741824 + z))) && (x <= 1073741823)) || ((((((((z <= 1073741823) && (x <= 1073741823)) && (0 <= (1073741823 + z))) && (0 <= (1073741823 + x))) && (y <= 1073741823)) && (0 <= (y + 2147483648))) && (x <= 1073741823)) && (0 <= (1073741823 + x)))) RESULT: Ultimate proved your program to be correct! [2023-11-24 23:57:10,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8896cb58-9c30-4a8c-b664-7c397a8ea993/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