./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bff053df41c1fc922299a13f2dac2a98df2d05e146d51bf11ac9e37ddfefad6a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:54:41,972 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:54:42,063 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:54:42,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:54:42,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:54:42,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:54:42,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:54:42,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:54:42,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:54:42,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:54:42,118 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:54:42,118 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:54:42,119 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:54:42,119 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:54:42,119 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:54:42,119 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:54:42,119 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:54:42,119 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:54:42,120 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:54:42,120 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:54:42,120 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:54:42,120 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:54:42,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:54:42,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:54:42,121 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:54:42,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:54:42,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:54:42,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:54:42,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:54:42,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:54:42,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:54:42,122 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:54:42,122 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:54:42,122 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:54:42,122 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:54:42,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:54:42,123 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:54:42,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:54:42,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:54:42,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:54:42,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:54:42,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:54:42,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:54:42,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:54:42,127 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:54:42,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:54:42,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:54:42,127 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:54:42,128 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:54:42,128 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff053df41c1fc922299a13f2dac2a98df2d05e146d51bf11ac9e37ddfefad6a [2024-11-14 03:54:42,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:54:42,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:54:42,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:54:42,594 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:54:42,594 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:54:42,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c Unable to find full path for "g++" [2024-11-14 03:54:45,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:54:45,338 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:54:45,338 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c [2024-11-14 03:54:45,345 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/data/142efce3d/c12550286239458e8db42cdc5f898282/FLAGeb31de6ce [2024-11-14 03:54:45,360 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/data/142efce3d/c12550286239458e8db42cdc5f898282 [2024-11-14 03:54:45,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:54:45,364 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:54:45,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:54:45,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:54:45,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:54:45,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6aeb8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45, skipping insertion in model container [2024-11-14 03:54:45,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,391 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:54:45,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:54:45,622 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:54:45,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:54:45,658 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:54:45,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45 WrapperNode [2024-11-14 03:54:45,659 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:54:45,660 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:54:45,660 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:54:45,661 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:54:45,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,706 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2024-11-14 03:54:45,708 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:54:45,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:54:45,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:54:45,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:54:45,721 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,735 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:54:45,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:54:45,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:54:45,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:54:45,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45" (1/1) ... [2024-11-14 03:54:45,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:54:45,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:45,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:54:45,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:54:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:54:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:54:45,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:54:45,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:54:45,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:54:45,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:54:45,941 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:54:45,944 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:54:46,148 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-14 03:54:46,149 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:54:46,215 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:54:46,216 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:54:46,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:54:46 BoogieIcfgContainer [2024-11-14 03:54:46,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:54:46,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:54:46,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:54:46,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:54:46,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:54:45" (1/3) ... [2024-11-14 03:54:46,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762a6494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:54:46, skipping insertion in model container [2024-11-14 03:54:46,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:54:45" (2/3) ... [2024-11-14 03:54:46,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762a6494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:54:46, skipping insertion in model container [2024-11-14 03:54:46,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:54:46" (3/3) ... [2024-11-14 03:54:46,234 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound20.c [2024-11-14 03:54:46,256 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:54:46,259 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG freire1_valuebound20.c that has 2 procedures, 21 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2024-11-14 03:54:46,331 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:54:46,354 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c992ccf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:54:46,354 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-14 03:54:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:54:46,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:54:46,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:46,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:54:46,368 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 03:54:46,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:46,375 INFO L85 PathProgramCache]: Analyzing trace with hash 98567, now seen corresponding path program 1 times [2024-11-14 03:54:46,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:54:46,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097020463] [2024-11-14 03:54:46,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:46,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:54:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:46,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:54:46,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:54:46,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097020463] [2024-11-14 03:54:46,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097020463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:54:46,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:54:46,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:54:46,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058111019] [2024-11-14 03:54:46,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:54:46,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:54:46,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:54:46,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:54:46,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:54:46,593 INFO L87 Difference]: Start difference. First operand has 21 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:54:46,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:46,631 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2024-11-14 03:54:46,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:54:46,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2024-11-14 03:54:46,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:46,643 INFO L225 Difference]: With dead ends: 29 [2024-11-14 03:54:46,643 INFO L226 Difference]: Without dead ends: 16 [2024-11-14 03:54:46,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:54:46,656 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:46,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:54:46,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-14 03:54:46,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-14 03:54:46,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 03:54:46,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-11-14 03:54:46,720 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2024-11-14 03:54:46,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:46,720 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-11-14 03:54:46,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:54:46,721 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-11-14 03:54:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:54:46,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:46,721 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:54:46,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:54:46,725 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 03:54:46,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:46,726 INFO L85 PathProgramCache]: Analyzing trace with hash 3055628, now seen corresponding path program 1 times [2024-11-14 03:54:46,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:54:46,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943270031] [2024-11-14 03:54:46,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:46,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:54:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:54:46,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [633656701] [2024-11-14 03:54:46,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:46,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:46,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:46,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:54:46,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:54:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:46,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:54:46,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:54:46,886 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:54:46,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:54:46,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943270031] [2024-11-14 03:54:46,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:54:46,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633656701] [2024-11-14 03:54:46,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633656701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:54:46,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:54:46,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:54:46,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361356214] [2024-11-14 03:54:46,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:54:46,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:54:46,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:54:46,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:54:46,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:54:46,895 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:54:46,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:46,986 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2024-11-14 03:54:46,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:54:46,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 03:54:46,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:46,988 INFO L225 Difference]: With dead ends: 29 [2024-11-14 03:54:46,989 INFO L226 Difference]: Without dead ends: 23 [2024-11-14 03:54:46,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:54:46,991 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:46,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:54:46,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-14 03:54:47,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-14 03:54:47,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:54:47,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-11-14 03:54:47,005 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 4 [2024-11-14 03:54:47,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:47,006 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-11-14 03:54:47,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:54:47,006 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-11-14 03:54:47,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 03:54:47,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:47,008 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:54:47,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:54:47,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:47,213 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 03:54:47,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:47,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1614454891, now seen corresponding path program 1 times [2024-11-14 03:54:47,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:54:47,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839723449] [2024-11-14 03:54:47,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:47,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:54:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:54:47,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87652985] [2024-11-14 03:54:47,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:47,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:47,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:47,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:54:47,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:54:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:47,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:54:47,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:47,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:54:47,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:54:47,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:54:47,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:54:47,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839723449] [2024-11-14 03:54:47,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:54:47,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87652985] [2024-11-14 03:54:47,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87652985] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:54:47,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [905753077] [2024-11-14 03:54:47,627 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-14 03:54:47,627 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:54:47,630 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:54:47,634 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:54:47,635 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:54:48,740 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-14 03:54:48,743 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:54:49,102 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '239#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_36| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_36| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_36|) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_36| |v_ULTIMATE.start_main_~r~0#1_36|)))))' at error location [2024-11-14 03:54:49,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:54:49,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:54:49,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-14 03:54:49,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357773168] [2024-11-14 03:54:49,103 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:54:49,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:54:49,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:54:49,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:54:49,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:54:49,105 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:54:49,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:49,262 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2024-11-14 03:54:49,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:54:49,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-11-14 03:54:49,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:49,263 INFO L225 Difference]: With dead ends: 45 [2024-11-14 03:54:49,264 INFO L226 Difference]: Without dead ends: 35 [2024-11-14 03:54:49,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:54:49,267 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:49,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 24 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:54:49,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-14 03:54:49,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-14 03:54:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:54:49,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-11-14 03:54:49,283 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 13 [2024-11-14 03:54:49,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:49,285 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-11-14 03:54:49,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:54:49,286 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-11-14 03:54:49,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 03:54:49,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:49,288 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-11-14 03:54:49,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 03:54:49,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-14 03:54:49,489 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 03:54:49,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:49,490 INFO L85 PathProgramCache]: Analyzing trace with hash 735915084, now seen corresponding path program 2 times [2024-11-14 03:54:49,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:54:49,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240346602] [2024-11-14 03:54:49,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:49,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:54:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:54:49,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133298185] [2024-11-14 03:54:49,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:54:49,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:49,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:49,543 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:54:49,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:54:49,650 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 03:54:49,650 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:54:49,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 03:54:49,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:49,798 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:54:49,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:54:50,111 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:54:50,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:54:50,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240346602] [2024-11-14 03:54:50,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:54:50,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133298185] [2024-11-14 03:54:50,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133298185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:54:50,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1894311443] [2024-11-14 03:54:50,115 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-14 03:54:50,115 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:54:50,115 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:54:50,116 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:54:50,116 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:54:50,785 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-14 03:54:50,788 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:54:51,378 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '595#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_49| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_49| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_49|) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_49| |v_ULTIMATE.start_main_~r~0#1_49|)))))' at error location [2024-11-14 03:54:51,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:54:51,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:54:51,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-14 03:54:51,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883548948] [2024-11-14 03:54:51,380 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:54:51,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:54:51,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:54:51,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:54:51,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:54:51,382 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 03:54:51,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:51,800 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2024-11-14 03:54:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:54:51,801 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 40 [2024-11-14 03:54:51,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:51,803 INFO L225 Difference]: With dead ends: 78 [2024-11-14 03:54:51,803 INFO L226 Difference]: Without dead ends: 77 [2024-11-14 03:54:51,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 97 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2024-11-14 03:54:51,804 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:51,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 95 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:54:51,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-14 03:54:51,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-14 03:54:51,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:54:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2024-11-14 03:54:51,820 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 40 [2024-11-14 03:54:51,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:51,821 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2024-11-14 03:54:51,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 03:54:51,821 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2024-11-14 03:54:51,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-14 03:54:51,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:51,824 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2024-11-14 03:54:51,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:54:52,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:52,027 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 03:54:52,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:52,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1958863532, now seen corresponding path program 3 times [2024-11-14 03:54:52,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:54:52,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517758290] [2024-11-14 03:54:52,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:52,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:54:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:54:52,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2019320026] [2024-11-14 03:54:52,166 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:54:52,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:52,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:52,170 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:54:52,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:54:52,306 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:54:52,306 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:54:52,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 03:54:52,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:54:52,645 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:54:53,528 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:54:53,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:54:53,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517758290] [2024-11-14 03:54:53,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:54:53,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019320026] [2024-11-14 03:54:53,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019320026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:54:53,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1960411726] [2024-11-14 03:54:53,534 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-14 03:54:53,535 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:54:53,535 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:54:53,536 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:54:53,536 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:54:53,924 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-14 03:54:53,926 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:54:55,174 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1392#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_74| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_74| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_74| |v_ULTIMATE.start_main_~r~0#1_74|)) (<= 0 |v_ULTIMATE.start_main_~r~0#1_74|))))' at error location [2024-11-14 03:54:55,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:54:55,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:54:55,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-14 03:54:55,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628113788] [2024-11-14 03:54:55,175 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:54:55,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 03:54:55,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:54:55,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 03:54:55,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=683, Unknown=0, NotChecked=0, Total=870 [2024-11-14 03:54:55,183 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand has 24 states, 23 states have (on average 5.608695652173913) internal successors, (129), 24 states have internal predecessors, (129), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 03:54:56,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:56,651 INFO L93 Difference]: Finished difference Result 162 states and 194 transitions. [2024-11-14 03:54:56,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 03:54:56,652 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.608695652173913) internal successors, (129), 24 states have internal predecessors, (129), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 94 [2024-11-14 03:54:56,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:56,654 INFO L225 Difference]: With dead ends: 162 [2024-11-14 03:54:56,654 INFO L226 Difference]: Without dead ends: 161 [2024-11-14 03:54:56,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 241 SyntacticMatches, 11 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=427, Invalid=1133, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 03:54:56,658 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 39 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:56,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 407 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:54:56,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-14 03:54:56,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-11-14 03:54:56,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 137 states have (on average 1.0072992700729928) internal successors, (138), 137 states have internal predecessors, (138), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 03:54:56,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 182 transitions. [2024-11-14 03:54:56,708 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 182 transitions. Word has length 94 [2024-11-14 03:54:56,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:56,709 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 182 transitions. [2024-11-14 03:54:56,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.608695652173913) internal successors, (129), 24 states have internal predecessors, (129), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 03:54:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 182 transitions. [2024-11-14 03:54:56,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-14 03:54:56,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:56,716 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1] [2024-11-14 03:54:56,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:54:56,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:56,923 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 03:54:56,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:56,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1745635476, now seen corresponding path program 4 times [2024-11-14 03:54:56,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:54:56,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918285350] [2024-11-14 03:54:56,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:56,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:54:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:54:57,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [425249919] [2024-11-14 03:54:57,137 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:54:57,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:57,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:57,142 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:54:57,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:54:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:57,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-14 03:54:57,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:58,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-14 03:54:58,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:55:00,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-14 03:55:00,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:55:00,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918285350] [2024-11-14 03:55:00,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:55:00,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425249919] [2024-11-14 03:55:00,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425249919] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:55:00,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [381706223] [2024-11-14 03:55:00,152 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-14 03:55:00,152 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:55:00,153 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:55:00,153 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:55:00,153 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:55:00,548 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-14 03:55:00,552 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:55:03,516 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3089#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_123| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_123| |v_ULTIMATE.start_main_~r~0#1_123|)) (<= |v_ULTIMATE.start_main_~r~0#1_123| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_123|))))' at error location [2024-11-14 03:55:03,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:55:03,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:55:03,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2024-11-14 03:55:03,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018118539] [2024-11-14 03:55:03,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:55:03,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-14 03:55:03,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:55:03,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-14 03:55:03,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=643, Invalid=2219, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 03:55:03,527 INFO L87 Difference]: Start difference. First operand 161 states and 182 transitions. Second operand has 48 states, 47 states have (on average 5.808510638297872) internal successors, (273), 48 states have internal predecessors, (273), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-14 03:55:09,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:55:09,006 INFO L93 Difference]: Finished difference Result 330 states and 398 transitions. [2024-11-14 03:55:09,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-14 03:55:09,007 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.808510638297872) internal successors, (273), 48 states have internal predecessors, (273), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 202 [2024-11-14 03:55:09,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:55:09,009 INFO L225 Difference]: With dead ends: 330 [2024-11-14 03:55:09,010 INFO L226 Difference]: Without dead ends: 329 [2024-11-14 03:55:09,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 529 SyntacticMatches, 23 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=1699, Invalid=4001, Unknown=0, NotChecked=0, Total=5700 [2024-11-14 03:55:09,013 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 72 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:55:09,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1679 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2805 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 03:55:09,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-14 03:55:09,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-11-14 03:55:09,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 281 states have (on average 1.00355871886121) internal successors, (282), 281 states have internal predecessors, (282), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-14 03:55:09,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 374 transitions. [2024-11-14 03:55:09,043 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 374 transitions. Word has length 202 [2024-11-14 03:55:09,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:55:09,044 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 374 transitions. [2024-11-14 03:55:09,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.808510638297872) internal successors, (273), 48 states have internal predecessors, (273), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-14 03:55:09,045 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 374 transitions. [2024-11-14 03:55:09,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-11-14 03:55:09,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:55:09,052 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 1, 1] [2024-11-14 03:55:09,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:55:09,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 03:55:09,253 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 03:55:09,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:55:09,254 INFO L85 PathProgramCache]: Analyzing trace with hash 107020524, now seen corresponding path program 5 times [2024-11-14 03:55:09,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:55:09,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686314356] [2024-11-14 03:55:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:09,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:55:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:55:09,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [713330331] [2024-11-14 03:55:09,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:55:09,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:55:09,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:55:09,627 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:55:09,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:55:10,313 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2024-11-14 03:55:10,314 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:55:10,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-14 03:55:10,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:55:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2024-11-14 03:55:12,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:55:12,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:55:12,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686314356] [2024-11-14 03:55:12,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:55:12,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713330331] [2024-11-14 03:55:12,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713330331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:55:12,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1877184240] [2024-11-14 03:55:12,864 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-14 03:55:12,864 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:55:12,864 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:55:12,864 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:55:12,865 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:55:13,203 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-14 03:55:13,205 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:55:17,339 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5341#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_176| Int)) (and (<= 0 |v_ULTIMATE.start_main_~r~0#1_176|) (<= |v_ULTIMATE.start_main_~r~0#1_176| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_176| |v_ULTIMATE.start_main_~r~0#1_176|)))))' at error location [2024-11-14 03:55:17,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:55:17,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:55:17,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2024-11-14 03:55:17,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366341259] [2024-11-14 03:55:17,340 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:55:17,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-14 03:55:17,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:55:17,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-14 03:55:17,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1264, Invalid=2276, Unknown=0, NotChecked=0, Total=3540 [2024-11-14 03:55:17,345 INFO L87 Difference]: Start difference. First operand 329 states and 374 transitions. Second operand has 50 states, 49 states have (on average 5.73469387755102) internal successors, (281), 50 states have internal predecessors, (281), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-14 03:55:20,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:55:20,282 INFO L93 Difference]: Finished difference Result 341 states and 388 transitions. [2024-11-14 03:55:20,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-14 03:55:20,283 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 5.73469387755102) internal successors, (281), 50 states have internal predecessors, (281), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 418 [2024-11-14 03:55:20,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:55:20,290 INFO L225 Difference]: With dead ends: 341 [2024-11-14 03:55:20,291 INFO L226 Difference]: Without dead ends: 340 [2024-11-14 03:55:20,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 746 SyntacticMatches, 47 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4251 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=3748, Invalid=7382, Unknown=0, NotChecked=0, Total=11130 [2024-11-14 03:55:20,296 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 233 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:55:20,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 108 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:55:20,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-14 03:55:20,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 336. [2024-11-14 03:55:20,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 287 states have (on average 1.0034843205574913) internal successors, (288), 287 states have internal predecessors, (288), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-14 03:55:20,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 382 transitions. [2024-11-14 03:55:20,356 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 382 transitions. Word has length 418 [2024-11-14 03:55:20,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:55:20,358 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 382 transitions. [2024-11-14 03:55:20,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 5.73469387755102) internal successors, (281), 50 states have internal predecessors, (281), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-14 03:55:20,359 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 382 transitions. [2024-11-14 03:55:20,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-14 03:55:20,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:55:20,369 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 47, 47, 47, 47, 47, 47, 47, 1, 1] [2024-11-14 03:55:20,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 03:55:20,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 03:55:20,574 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 03:55:20,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:55:20,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1132332363, now seen corresponding path program 6 times [2024-11-14 03:55:20,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:55:20,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267113862] [2024-11-14 03:55:20,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:20,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:55:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:55:20,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2147319678] [2024-11-14 03:55:20,827 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:55:20,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:55:20,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:55:20,829 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:55:20,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:55:21,122 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:55:21,122 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:55:21,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-14 03:55:21,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:55:22,961 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 7708 refuted. 0 times theorem prover too weak. 2162 trivial. 0 not checked. [2024-11-14 03:55:22,961 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:55:29,228 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 7708 refuted. 0 times theorem prover too weak. 2162 trivial. 0 not checked. [2024-11-14 03:55:29,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:55:29,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267113862] [2024-11-14 03:55:29,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:55:29,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147319678] [2024-11-14 03:55:29,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147319678] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:55:29,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1021198832] [2024-11-14 03:55:29,230 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-14 03:55:29,230 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:55:29,231 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:55:29,231 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:55:29,231 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:55:29,528 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-14 03:55:29,529 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:55:39,899 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8965#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_275| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_275| |v_ULTIMATE.start_main_~r~0#1_275|)) (<= |v_ULTIMATE.start_main_~r~0#1_275| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_275|))))' at error location [2024-11-14 03:55:39,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:55:39,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:55:39,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 97 [2024-11-14 03:55:39,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310312339] [2024-11-14 03:55:39,900 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:55:39,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-14 03:55:39,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:55:39,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-14 03:55:39,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2518, Invalid=8194, Unknown=0, NotChecked=0, Total=10712 [2024-11-14 03:55:39,914 INFO L87 Difference]: Start difference. First operand 336 states and 382 transitions. Second operand has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-14 03:56:06,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:06,032 INFO L93 Difference]: Finished difference Result 680 states and 823 transitions. [2024-11-14 03:56:06,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-11-14 03:56:06,033 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 427 [2024-11-14 03:56:06,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:06,040 INFO L225 Difference]: With dead ends: 680 [2024-11-14 03:56:06,040 INFO L226 Difference]: Without dead ends: 679 [2024-11-14 03:56:06,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1326 GetRequests, 1129 SyntacticMatches, 48 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4005 ImplicationChecksByTransitivity, 36.5s TimeCoverageRelationStatistics Valid=7124, Invalid=15526, Unknown=0, NotChecked=0, Total=22650 [2024-11-14 03:56:06,047 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 147 mSDsluCounter, 6911 mSDsCounter, 0 mSdLazyCounter, 11855 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 7104 SdHoareTripleChecker+Invalid, 11904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 11855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:06,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 7104 Invalid, 11904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 11855 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-14 03:56:06,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-14 03:56:06,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2024-11-14 03:56:06,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 581 states have (on average 1.0017211703958693) internal successors, (582), 581 states have internal predecessors, (582), 96 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-14 03:56:06,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 774 transitions. [2024-11-14 03:56:06,128 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 774 transitions. Word has length 427 [2024-11-14 03:56:06,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:06,130 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 774 transitions. [2024-11-14 03:56:06,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-14 03:56:06,131 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 774 transitions. [2024-11-14 03:56:06,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 869 [2024-11-14 03:56:06,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:06,165 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 96, 96, 96, 96, 96, 96, 96, 1, 1] [2024-11-14 03:56:06,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-14 03:56:06,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 03:56:06,366 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 03:56:06,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:06,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1783973388, now seen corresponding path program 7 times [2024-11-14 03:56:06,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:06,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091412854] [2024-11-14 03:56:06,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:06,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:56:06,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877605028] [2024-11-14 03:56:06,828 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:56:06,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:06,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:06,831 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:06,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:56:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:07,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 195 conjuncts are in the unsatisfiable core [2024-11-14 03:56:07,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:13,280 INFO L134 CoverageAnalysis]: Checked inductivity of 41328 backedges. 0 proven. 32208 refuted. 0 times theorem prover too weak. 9120 trivial. 0 not checked. [2024-11-14 03:56:13,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:56:37,308 INFO L134 CoverageAnalysis]: Checked inductivity of 41328 backedges. 0 proven. 32208 refuted. 0 times theorem prover too weak. 9120 trivial. 0 not checked. [2024-11-14 03:56:37,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:37,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091412854] [2024-11-14 03:56:37,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:56:37,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877605028] [2024-11-14 03:56:37,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877605028] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:56:37,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1403318927] [2024-11-14 03:56:37,312 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-14 03:56:37,312 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:56:37,312 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:56:37,312 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:56:37,313 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:56:37,607 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-14 03:56:37,608 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:57:14,626 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16212#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_472| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_472| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_472|) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_472| |v_ULTIMATE.start_main_~r~0#1_472|)))))' at error location [2024-11-14 03:57:14,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:57:14,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:57:14,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 195 [2024-11-14 03:57:14,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334025595] [2024-11-14 03:57:14,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:57:14,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2024-11-14 03:57:14,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:14,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2024-11-14 03:57:14,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9819, Invalid=30783, Unknown=0, NotChecked=0, Total=40602 [2024-11-14 03:57:14,642 INFO L87 Difference]: Start difference. First operand 679 states and 774 transitions. Second operand has 196 states, 195 states have (on average 5.953846153846154) internal successors, (1161), 196 states have internal predecessors, (1161), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-14 03:59:45,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:59:45,601 INFO L93 Difference]: Finished difference Result 1366 states and 1656 transitions. [2024-11-14 03:59:45,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2024-11-14 03:59:45,603 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 195 states have (on average 5.953846153846154) internal successors, (1161), 196 states have internal predecessors, (1161), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) Word has length 868 [2024-11-14 03:59:45,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:59:45,613 INFO L225 Difference]: With dead ends: 1366 [2024-11-14 03:59:45,613 INFO L226 Difference]: Without dead ends: 1365 [2024-11-14 03:59:45,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2698 GetRequests, 2305 SyntacticMatches, 97 SemanticMatches, 296 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15226 ImplicationChecksByTransitivity, 190.8s TimeCoverageRelationStatistics Valid=28635, Invalid=59871, Unknown=0, NotChecked=0, Total=88506 [2024-11-14 03:59:45,623 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 297 mSDsluCounter, 28614 mSDsCounter, 0 mSdLazyCounter, 47731 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 29003 SdHoareTripleChecker+Invalid, 47830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 47731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:59:45,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 29003 Invalid, 47830 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [99 Valid, 47731 Invalid, 0 Unknown, 0 Unchecked, 19.7s Time] [2024-11-14 03:59:45,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2024-11-14 03:59:45,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1365. [2024-11-14 03:59:45,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1169 states have (on average 1.0008554319931566) internal successors, (1170), 1169 states have internal predecessors, (1170), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-14 03:59:45,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1558 transitions. [2024-11-14 03:59:45,745 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1558 transitions. Word has length 868 [2024-11-14 03:59:45,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:59:45,747 INFO L471 AbstractCegarLoop]: Abstraction has 1365 states and 1558 transitions. [2024-11-14 03:59:45,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 5.953846153846154) internal successors, (1161), 196 states have internal predecessors, (1161), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-14 03:59:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1558 transitions. [2024-11-14 03:59:45,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1751 [2024-11-14 03:59:45,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:45,829 INFO L215 NwaCegarLoop]: trace histogram [195, 195, 194, 194, 194, 194, 194, 194, 194, 1, 1] [2024-11-14 03:59:45,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 03:59:46,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 03:59:46,030 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 03:59:46,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:46,031 INFO L85 PathProgramCache]: Analyzing trace with hash 858609196, now seen corresponding path program 8 times [2024-11-14 03:59:46,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:59:46,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140304282] [2024-11-14 03:59:46,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:46,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:59:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:59:47,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1567682205] [2024-11-14 03:59:47,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:59:47,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:59:47,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:59:47,031 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:59:47,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:59:50,822 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 195 check-sat command(s) [2024-11-14 03:59:50,822 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:59:50,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 2743 conjuncts, 198 conjuncts are in the unsatisfiable core [2024-11-14 03:59:50,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:11,881 INFO L134 CoverageAnalysis]: Checked inductivity of 169071 backedges. 0 proven. 131629 refuted. 0 times theorem prover too weak. 37442 trivial. 0 not checked. [2024-11-14 04:00:11,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:13,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:00:13,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140304282] [2024-11-14 04:00:13,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:00:13,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567682205] [2024-11-14 04:00:13,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567682205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:00:13,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [715193110] [2024-11-14 04:00:13,376 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-14 04:00:13,377 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:00:13,377 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:00:13,377 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:00:13,378 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:00:13,709 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-14 04:00:13,713 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:01:02,811 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25420#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_673| Int)) (and (<= 0 |v_ULTIMATE.start_main_~r~0#1_673|) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_673| |v_ULTIMATE.start_main_~r~0#1_673|)) (<= |v_ULTIMATE.start_main_~r~0#1_673| 2147483647))))' at error location [2024-11-14 04:01:02,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:01:02,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:01:02,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [197] total 197 [2024-11-14 04:01:02,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452154389] [2024-11-14 04:01:02,813 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:01:02,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 198 states [2024-11-14 04:01:02,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:01:02,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 198 interpolants. [2024-11-14 04:01:02,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19542, Invalid=23514, Unknown=0, NotChecked=0, Total=43056 [2024-11-14 04:01:02,826 INFO L87 Difference]: Start difference. First operand 1365 states and 1558 transitions. Second operand has 198 states, 197 states have (on average 5.934010152284264) internal successors, (1169), 198 states have internal predecessors, (1169), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-14 04:01:36,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:36,108 INFO L93 Difference]: Finished difference Result 1377 states and 1572 transitions. [2024-11-14 04:01:36,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2024-11-14 04:01:36,110 INFO L78 Accepts]: Start accepts. Automaton has has 198 states, 197 states have (on average 5.934010152284264) internal successors, (1169), 198 states have internal predecessors, (1169), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) Word has length 1750 [2024-11-14 04:01:36,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:36,118 INFO L225 Difference]: With dead ends: 1377 [2024-11-14 04:01:36,118 INFO L226 Difference]: Without dead ends: 1376 [2024-11-14 04:01:36,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3709 GetRequests, 3114 SyntacticMatches, 195 SemanticMatches, 400 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60861 ImplicationChecksByTransitivity, 99.0s TimeCoverageRelationStatistics Valid=58730, Invalid=102472, Unknown=0, NotChecked=0, Total=161202 [2024-11-14 04:01:36,130 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 973 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:36,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 402 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 04:01:36,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2024-11-14 04:01:36,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1372. [2024-11-14 04:01:36,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1175 states have (on average 1.0008510638297872) internal successors, (1176), 1175 states have internal predecessors, (1176), 195 states have call successors, (195), 1 states have call predecessors, (195), 1 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-14 04:01:36,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1566 transitions. [2024-11-14 04:01:36,275 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1566 transitions. Word has length 1750 [2024-11-14 04:01:36,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:36,282 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 1566 transitions. [2024-11-14 04:01:36,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 198 states, 197 states have (on average 5.934010152284264) internal successors, (1169), 198 states have internal predecessors, (1169), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-14 04:01:36,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1566 transitions. [2024-11-14 04:01:36,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1760 [2024-11-14 04:01:36,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:36,311 INFO L215 NwaCegarLoop]: trace histogram [196, 196, 195, 195, 195, 195, 195, 195, 195, 1, 1] [2024-11-14 04:01:36,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 04:01:36,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 04:01:36,511 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:01:36,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:36,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1440641675, now seen corresponding path program 9 times [2024-11-14 04:01:36,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:01:36,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488486506] [2024-11-14 04:01:36,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:36,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:01:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:01:37,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001653501] [2024-11-14 04:01:37,264 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:01:37,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:37,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:01:37,267 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:01:37,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c7edae-a7eb-4cfc-93a5-0db4b6ad8bf8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 04:01:38,107 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:01:38,108 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:01:38,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 2757 conjuncts, 393 conjuncts are in the unsatisfiable core [2024-11-14 04:01:38,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:55,652 INFO L134 CoverageAnalysis]: Checked inductivity of 170820 backedges. 0 proven. 132990 refuted. 0 times theorem prover too weak. 37830 trivial. 0 not checked. [2024-11-14 04:01:55,652 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:03:14,398 INFO L134 CoverageAnalysis]: Checked inductivity of 170820 backedges. 0 proven. 132990 refuted. 0 times theorem prover too weak. 37830 trivial. 0 not checked. [2024-11-14 04:03:14,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:03:14,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488486506] [2024-11-14 04:03:14,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:03:14,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001653501] [2024-11-14 04:03:14,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001653501] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:03:14,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1879297229] [2024-11-14 04:03:14,401 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-14 04:03:14,402 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:03:14,402 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:03:14,402 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:03:14,402 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:03:14,659 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-14 04:03:14,660 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:05:29,058 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40292#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_1068| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_1068| |v_ULTIMATE.start_main_~r~0#1_1068|)) (<= |v_ULTIMATE.start_main_~r~0#1_1068| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_1068|))))' at error location [2024-11-14 04:05:29,058 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:05:29,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:05:29,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [197, 197] total 393 [2024-11-14 04:05:29,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632163343] [2024-11-14 04:05:29,059 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:05:29,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 394 states [2024-11-14 04:05:29,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:05:29,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 394 interpolants. [2024-11-14 04:05:29,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39222, Invalid=120378, Unknown=0, NotChecked=0, Total=159600 [2024-11-14 04:05:29,086 INFO L87 Difference]: Start difference. First operand 1372 states and 1566 transitions. Second operand has 394 states, 393 states have (on average 5.977099236641221) internal successors, (2349), 394 states have internal predecessors, (2349), 390 states have call successors, (390), 1 states have call predecessors, (390), 1 states have return successors, (390), 390 states have call predecessors, (390), 390 states have call successors, (390)