./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_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_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/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_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/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_1d4c526a-83fc-4aea-b405-2dc75610d518/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 6977cec8a403ff3f16926270da45a38f7b1f51a39c72ba3797fb74b9637fd796 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:27:12,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:27:12,215 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 04:27:12,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:27:12,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:27:12,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:27:12,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:27:12,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:27:12,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:27:12,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:27:12,266 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:27:12,267 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:27:12,267 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:27:12,267 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:27:12,268 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:27:12,269 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:27:12,269 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:27:12,269 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:27:12,269 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:27:12,269 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:27:12,269 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:27:12,269 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:27:12,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:27:12,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:27:12,270 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:27:12,270 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:27:12,270 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:27:12,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:27:12,271 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:27:12,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:27:12,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:27:12,271 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:27:12,271 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:27:12,271 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:27:12,271 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:27:12,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:27:12,272 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:27:12,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:27:12,273 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:27:12,273 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:27:12,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:27:12,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:27:12,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:27:12,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:27:12,274 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:27:12,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:27:12,274 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:27:12,274 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:27:12,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:27:12,275 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_1d4c526a-83fc-4aea-b405-2dc75610d518/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 -> 6977cec8a403ff3f16926270da45a38f7b1f51a39c72ba3797fb74b9637fd796 [2024-11-14 04:27:12,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:27:12,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:27:12,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:27:12,631 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:27:12,631 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:27:12,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c Unable to find full path for "g++" [2024-11-14 04:27:14,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:27:14,956 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:27:14,956 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c [2024-11-14 04:27:14,977 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/data/ee9ce72a9/99412e044b6a45998c6b5b7a463b791b/FLAGc3a47f24a [2024-11-14 04:27:15,007 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/data/ee9ce72a9/99412e044b6a45998c6b5b7a463b791b [2024-11-14 04:27:15,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:27:15,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:27:15,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:27:15,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:27:15,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:27:15,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fdd8010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15, skipping insertion in model container [2024-11-14 04:27:15,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,047 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:27:15,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:27:15,243 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:27:15,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:27:15,273 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:27:15,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15 WrapperNode [2024-11-14 04:27:15,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:27:15,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:27:15,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:27:15,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:27:15,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,321 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2024-11-14 04:27:15,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:27:15,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:27:15,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:27:15,330 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:27:15,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,358 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:27:15,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:27:15,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:27:15,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:27:15,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15" (1/1) ... [2024-11-14 04:27:15,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:27:15,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:15,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:27:15,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:27:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:27:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:27:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:27:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:27:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:27:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:27:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 04:27:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 04:27:15,514 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:27:15,516 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:27:15,909 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-14 04:27:15,911 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:27:15,968 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:27:15,969 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 04:27:15,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:27:15 BoogieIcfgContainer [2024-11-14 04:27:15,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:27:15,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:27:15,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:27:15,977 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:27:15,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:27:15" (1/3) ... [2024-11-14 04:27:15,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa024e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:27:15, skipping insertion in model container [2024-11-14 04:27:15,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:27:15" (2/3) ... [2024-11-14 04:27:15,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa024e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:27:15, skipping insertion in model container [2024-11-14 04:27:15,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:27:15" (3/3) ... [2024-11-14 04:27:15,982 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound20.c [2024-11-14 04:27:15,999 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:27:16,002 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hard-ll_valuebound20.c that has 3 procedures, 72 locations, 1 initial locations, 2 loop locations, and 24 error locations. [2024-11-14 04:27:16,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:27:16,095 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;@771e2137, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:27:16,095 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-14 04:27:16,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:27:16,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 04:27:16,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:16,111 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:16,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:16,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:16,117 INFO L85 PathProgramCache]: Analyzing trace with hash 31241006, now seen corresponding path program 1 times [2024-11-14 04:27:16,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:16,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88585327] [2024-11-14 04:27:16,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:16,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:16,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:27:16,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:16,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88585327] [2024-11-14 04:27:16,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88585327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:16,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:16,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:27:16,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999754194] [2024-11-14 04:27:16,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:16,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:27:16,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:16,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:27:16,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:27:16,320 INFO L87 Difference]: Start difference. First operand has 72 states, 35 states have (on average 1.8285714285714285) internal successors, (64), 59 states have internal predecessors, (64), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:27:16,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:16,361 INFO L93 Difference]: Finished difference Result 119 states and 136 transitions. [2024-11-14 04:27:16,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:27:16,364 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 15 [2024-11-14 04:27:16,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:16,371 INFO L225 Difference]: With dead ends: 119 [2024-11-14 04:27:16,372 INFO L226 Difference]: Without dead ends: 68 [2024-11-14 04:27:16,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 04:27:16,378 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:16,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:27:16,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-14 04:27:16,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-14 04:27:16,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 57 states have internal predecessors, (60), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 04:27:16,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2024-11-14 04:27:16,441 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 15 [2024-11-14 04:27:16,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:16,443 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2024-11-14 04:27:16,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:27:16,446 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2024-11-14 04:27:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 04:27:16,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:16,448 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:16,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:27:16,449 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:16,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:16,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1026206095, now seen corresponding path program 1 times [2024-11-14 04:27:16,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:16,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780664137] [2024-11-14 04:27:16,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:16,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:27:16,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [835783788] [2024-11-14 04:27:16,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:16,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:16,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:16,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:27:16,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:27:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:16,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:27:16,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:16,680 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 04:27:16,680 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:27:16,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:16,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780664137] [2024-11-14 04:27:16,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:27:16,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835783788] [2024-11-14 04:27:16,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835783788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:16,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:16,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:27:16,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852273911] [2024-11-14 04:27:16,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:16,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:27:16,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:16,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:27:16,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:27:16,689 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 04:27:16,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:16,837 INFO L93 Difference]: Finished difference Result 142 states and 161 transitions. [2024-11-14 04:27:16,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:27:16,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 20 [2024-11-14 04:27:16,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:16,839 INFO L225 Difference]: With dead ends: 142 [2024-11-14 04:27:16,839 INFO L226 Difference]: Without dead ends: 95 [2024-11-14 04:27:16,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 04:27:16,843 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 20 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:16,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 116 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:27:16,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-14 04:27:16,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 89. [2024-11-14 04:27:16,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 50 states have (on average 1.66) internal successors, (83), 73 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 04:27:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2024-11-14 04:27:16,872 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 20 [2024-11-14 04:27:16,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:16,872 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2024-11-14 04:27:16,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 04:27:16,873 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2024-11-14 04:27:16,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 04:27:16,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:16,876 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:16,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 04:27:17,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:17,081 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:17,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:17,082 INFO L85 PathProgramCache]: Analyzing trace with hash 533185486, now seen corresponding path program 1 times [2024-11-14 04:27:17,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:17,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821478443] [2024-11-14 04:27:17,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:17,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:17,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:17,378 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:27:17,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:17,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821478443] [2024-11-14 04:27:17,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821478443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:17,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:17,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:27:17,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867635502] [2024-11-14 04:27:17,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:17,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:27:17,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:17,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:27:17,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:27:17,381 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:27:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:17,576 INFO L93 Difference]: Finished difference Result 89 states and 109 transitions. [2024-11-14 04:27:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:27:17,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 26 [2024-11-14 04:27:17,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:17,580 INFO L225 Difference]: With dead ends: 89 [2024-11-14 04:27:17,580 INFO L226 Difference]: Without dead ends: 87 [2024-11-14 04:27:17,580 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 04:27:17,581 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 39 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:17,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 62 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:27:17,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-14 04:27:17,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-14 04:27:17,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 50 states have (on average 1.6) internal successors, (80), 71 states have internal predecessors, (80), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 04:27:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2024-11-14 04:27:17,610 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 106 transitions. Word has length 26 [2024-11-14 04:27:17,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:17,611 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 106 transitions. [2024-11-14 04:27:17,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:27:17,611 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 106 transitions. [2024-11-14 04:27:17,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 04:27:17,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:17,612 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:17,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:27:17,613 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:17,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:17,615 INFO L85 PathProgramCache]: Analyzing trace with hash -651120467, now seen corresponding path program 1 times [2024-11-14 04:27:17,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:17,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44298123] [2024-11-14 04:27:17,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:17,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:27:17,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198841374] [2024-11-14 04:27:17,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:17,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:17,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:17,659 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:27:17,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:27:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:17,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:27:17,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:27:17,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:27:17,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:17,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44298123] [2024-11-14 04:27:17,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:27:17,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198841374] [2024-11-14 04:27:17,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198841374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:17,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:17,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:27:17,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518484792] [2024-11-14 04:27:17,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:17,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:27:17,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:17,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:27:17,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:27:17,805 INFO L87 Difference]: Start difference. First operand 87 states and 106 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:27:18,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:18,023 INFO L93 Difference]: Finished difference Result 121 states and 149 transitions. [2024-11-14 04:27:18,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:27:18,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2024-11-14 04:27:18,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:18,027 INFO L225 Difference]: With dead ends: 121 [2024-11-14 04:27:18,029 INFO L226 Difference]: Without dead ends: 117 [2024-11-14 04:27:18,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 04:27:18,030 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 37 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:18,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 90 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:27:18,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-14 04:27:18,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 104. [2024-11-14 04:27:18,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5692307692307692) internal successors, (102), 86 states have internal predecessors, (102), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-14 04:27:18,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2024-11-14 04:27:18,064 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 27 [2024-11-14 04:27:18,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:18,065 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2024-11-14 04:27:18,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:27:18,065 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2024-11-14 04:27:18,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 04:27:18,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:18,067 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:18,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 04:27:18,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:18,271 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:18,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:18,272 INFO L85 PathProgramCache]: Analyzing trace with hash -651119057, now seen corresponding path program 1 times [2024-11-14 04:27:18,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:18,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99561564] [2024-11-14 04:27:18,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:18,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:18,428 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:27:18,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:18,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99561564] [2024-11-14 04:27:18,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99561564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:18,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:18,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:27:18,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134801485] [2024-11-14 04:27:18,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:18,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:27:18,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:18,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:27:18,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:27:18,430 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:27:18,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:18,546 INFO L93 Difference]: Finished difference Result 111 states and 137 transitions. [2024-11-14 04:27:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:27:18,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 27 [2024-11-14 04:27:18,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:18,549 INFO L225 Difference]: With dead ends: 111 [2024-11-14 04:27:18,550 INFO L226 Difference]: Without dead ends: 110 [2024-11-14 04:27:18,550 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 04:27:18,551 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:18,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 111 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:27:18,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-14 04:27:18,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2024-11-14 04:27:18,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.5538461538461539) internal successors, (101), 86 states have internal predecessors, (101), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-14 04:27:18,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 131 transitions. [2024-11-14 04:27:18,569 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 131 transitions. Word has length 27 [2024-11-14 04:27:18,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:18,569 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 131 transitions. [2024-11-14 04:27:18,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:27:18,569 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2024-11-14 04:27:18,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 04:27:18,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:18,570 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:18,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:27:18,570 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:18,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:18,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1338458959, now seen corresponding path program 1 times [2024-11-14 04:27:18,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:18,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010649458] [2024-11-14 04:27:18,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:18,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:18,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:27:18,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:18,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010649458] [2024-11-14 04:27:18,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010649458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:18,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:18,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:27:18,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396777342] [2024-11-14 04:27:18,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:18,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:27:18,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:18,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:27:18,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:27:18,724 INFO L87 Difference]: Start difference. First operand 104 states and 131 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:27:19,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:19,153 INFO L93 Difference]: Finished difference Result 119 states and 145 transitions. [2024-11-14 04:27:19,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:27:19,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 29 [2024-11-14 04:27:19,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:19,154 INFO L225 Difference]: With dead ends: 119 [2024-11-14 04:27:19,155 INFO L226 Difference]: Without dead ends: 118 [2024-11-14 04:27:19,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:27:19,156 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 85 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:19,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 86 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:27:19,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-14 04:27:19,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2024-11-14 04:27:19,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.5217391304347827) internal successors, (105), 90 states have internal predecessors, (105), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-14 04:27:19,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2024-11-14 04:27:19,186 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 135 transitions. Word has length 29 [2024-11-14 04:27:19,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:19,186 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 135 transitions. [2024-11-14 04:27:19,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:27:19,186 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 135 transitions. [2024-11-14 04:27:19,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 04:27:19,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:19,187 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:19,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 04:27:19,188 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:19,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:19,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1457445148, now seen corresponding path program 1 times [2024-11-14 04:27:19,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:19,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970026642] [2024-11-14 04:27:19,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:19,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:27:19,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068799463] [2024-11-14 04:27:19,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:19,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:19,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:19,244 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:27:19,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 04:27:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:19,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:27:19,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:27:19,449 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:27:19,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:19,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970026642] [2024-11-14 04:27:19,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:27:19,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068799463] [2024-11-14 04:27:19,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068799463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:19,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:19,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:27:19,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387419581] [2024-11-14 04:27:19,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:19,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:27:19,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:19,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:27:19,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:27:19,451 INFO L87 Difference]: Start difference. First operand 108 states and 135 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:27:19,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:19,694 INFO L93 Difference]: Finished difference Result 119 states and 142 transitions. [2024-11-14 04:27:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:27:19,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2024-11-14 04:27:19,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:19,696 INFO L225 Difference]: With dead ends: 119 [2024-11-14 04:27:19,696 INFO L226 Difference]: Without dead ends: 116 [2024-11-14 04:27:19,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 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 04:27:19,697 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 30 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:19,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 83 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:27:19,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-14 04:27:19,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 109. [2024-11-14 04:27:19,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 91 states have internal predecessors, (104), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-14 04:27:19,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2024-11-14 04:27:19,759 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 30 [2024-11-14 04:27:19,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:19,764 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2024-11-14 04:27:19,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:27:19,764 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2024-11-14 04:27:19,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-14 04:27:19,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:19,765 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:19,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 04:27:19,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:19,967 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:19,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:19,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1695070897, now seen corresponding path program 1 times [2024-11-14 04:27:19,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:19,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472165656] [2024-11-14 04:27:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:19,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:27:20,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146628113] [2024-11-14 04:27:20,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:20,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:20,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:20,014 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:27:20,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:27:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:20,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:27:20,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:20,432 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 04:27:20,433 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:27:20,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:20,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472165656] [2024-11-14 04:27:20,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:27:20,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146628113] [2024-11-14 04:27:20,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146628113] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:27:20,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1497170019] [2024-11-14 04:27:20,802 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-14 04:27:20,803 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:27:20,808 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:27:20,815 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:27:20,819 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:27:24,451 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:27:24,454 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:27:24,456 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:27:26,463 WARN L851 $PredicateComparison]: unable to prove that (and (<= 1 |c_#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_45| Int) (|v_ULTIMATE.start_main_~B~0#1_40| Int)) (let ((.cse3 (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296))) (and (let ((.cse5 (mod |c_ULTIMATE.start_main_~A~0#1| 4294967296))) (let ((.cse2 (= .cse5 |c_ULTIMATE.start_main_~r~0#1|))) (or (let ((.cse1 (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2))) (let ((.cse0 (* .cse1 .cse3))) (and (<= 0 (+ .cse0 4611686018427387903)) (<= .cse0 4611686018427387904) (<= .cse1 4611686018427387904) (<= 0 (+ .cse1 4611686018427387903)) (= (mod |v_ULTIMATE.start_main_~p~0#1_45| 2) 0) (= (+ (* .cse0 2) |c_ULTIMATE.start_main_~d~0#1|) 0) .cse2 (<= 0 (+ .cse0 |c_ULTIMATE.start_main_~r~0#1|))))) (let ((.cse4 (select |c_#memory_int| 1))) (and (= (select |c_#valid| 0) 0) (= (select |c_#valid| 3) 1) (<= 1 .cse3) (= 2 (select |c_#length| 1)) (= (select |c_#valid| 1) 1) (= |v_ULTIMATE.start_main_~p~0#1_45| 1) (= (select |c_#length| 2) 10) (= |c_ULTIMATE.start_main_~d~0#1| .cse3) (= (select |c_#valid| 2) 1) (= (select .cse4 1) 0) .cse2 (= (select |c_#length| 3) 12) (= 48 (select .cse4 0)) (<= .cse5 20) (<= .cse3 20)))))) (<= (+ 9223372036854775809 (* .cse3 |v_ULTIMATE.start_main_~p~0#1_45|)) 0)))) (= 0 |c_ULTIMATE.start_main_~q~0#1|)) is different from false [2024-11-14 04:27:34,269 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2293#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1_45| Int) (|v_ULTIMATE.start_main_~B~0#1_40| Int)) (and (or (and (= (select |#length| 3) 12) (= (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296) |ULTIMATE.start_main_~d~0#1|) (<= 1 (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) (= |v_ULTIMATE.start_main_~p~0#1_45| 1) (= 2 (select |#length| 1)) (<= (mod |ULTIMATE.start_main_~A~0#1| 4294967296) 20) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= |ULTIMATE.start_main_~r~0#1| (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select (select |#memory_int| 1) 0) 48) (= 10 (select |#length| 2)) (= (select (select |#memory_int| 1) 1) 0) (<= (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296) 20)) (and (<= 0 (+ (* (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) 4611686018427387903)) (<= (* (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) 4611686018427387904) (<= (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) 4611686018427387904) (<= 0 (+ (* (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) |ULTIMATE.start_main_~r~0#1|)) (<= 0 (+ (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) 4611686018427387903)) (= (+ (* (* (div (* (- 1) |v_ULTIMATE.start_main_~p~0#1_45|) 2) (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296)) 2) |ULTIMATE.start_main_~d~0#1|) 0) (= (mod |v_ULTIMATE.start_main_~p~0#1_45| 2) 0) (= |ULTIMATE.start_main_~r~0#1| (mod |ULTIMATE.start_main_~A~0#1| 4294967296)))) (<= (+ 9223372036854775809 (* (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296) |v_ULTIMATE.start_main_~p~0#1_45|)) 0))))' at error location [2024-11-14 04:27:34,270 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:27:34,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:27:34,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 04:27:34,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47570888] [2024-11-14 04:27:34,271 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:27:34,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:27:34,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:34,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:27:34,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=532, Unknown=2, NotChecked=48, Total=702 [2024-11-14 04:27:34,274 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 7 states, 5 states have (on average 3.2) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-14 04:27:34,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:34,863 INFO L93 Difference]: Finished difference Result 125 states and 155 transitions. [2024-11-14 04:27:34,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:27:34,863 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 37 [2024-11-14 04:27:34,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:34,864 INFO L225 Difference]: With dead ends: 125 [2024-11-14 04:27:34,864 INFO L226 Difference]: Without dead ends: 117 [2024-11-14 04:27:34,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=166, Invalid=766, Unknown=2, NotChecked=58, Total=992 [2024-11-14 04:27:34,866 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 114 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:34,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 157 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:27:34,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-14 04:27:34,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-14 04:27:34,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 95 states have internal predecessors, (107), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 04:27:34,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 141 transitions. [2024-11-14 04:27:34,895 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 141 transitions. Word has length 37 [2024-11-14 04:27:34,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:34,899 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 141 transitions. [2024-11-14 04:27:34,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-14 04:27:34,899 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2024-11-14 04:27:34,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-14 04:27:34,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:34,900 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:34,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 04:27:35,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:35,101 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:35,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:35,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1007590306, now seen corresponding path program 1 times [2024-11-14 04:27:35,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:35,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088087836] [2024-11-14 04:27:35,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:35,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:27:35,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [251261019] [2024-11-14 04:27:35,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:35,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:35,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:35,144 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:27:35,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:27:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:35,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:27:35,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:35,392 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 04:27:35,392 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:27:35,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:35,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088087836] [2024-11-14 04:27:35,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:27:35,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251261019] [2024-11-14 04:27:35,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251261019] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:27:35,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1588418080] [2024-11-14 04:27:35,592 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-14 04:27:35,592 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:27:35,592 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:27:35,593 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:27:35,593 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:27:37,354 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:27:37,356 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:27:37,357 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:27:38,745 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2782#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~B~0#1_41| Int) (|v_ULTIMATE.start_main_~p~0#1_52| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_41| 4294967296) |v_ULTIMATE.start_main_~p~0#1_52|))))' at error location [2024-11-14 04:27:38,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:27:38,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:27:38,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 04:27:38,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955481847] [2024-11-14 04:27:38,745 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:27:38,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:27:38,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:38,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:27:38,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2024-11-14 04:27:38,747 INFO L87 Difference]: Start difference. First operand 115 states and 141 transitions. Second operand has 7 states, 5 states have (on average 3.4) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-14 04:27:39,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:39,308 INFO L93 Difference]: Finished difference Result 187 states and 240 transitions. [2024-11-14 04:27:39,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:27:39,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 38 [2024-11-14 04:27:39,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:39,311 INFO L225 Difference]: With dead ends: 187 [2024-11-14 04:27:39,311 INFO L226 Difference]: Without dead ends: 183 [2024-11-14 04:27:39,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=170, Invalid=760, Unknown=0, NotChecked=0, Total=930 [2024-11-14 04:27:39,312 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 163 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:39,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 195 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:27:39,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-14 04:27:39,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 174. [2024-11-14 04:27:39,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 128 states have (on average 1.3671875) internal successors, (175), 145 states have internal predecessors, (175), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 04:27:39,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 227 transitions. [2024-11-14 04:27:39,339 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 227 transitions. Word has length 38 [2024-11-14 04:27:39,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:39,340 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 227 transitions. [2024-11-14 04:27:39,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 7 states have internal predecessors, (17), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-14 04:27:39,340 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 227 transitions. [2024-11-14 04:27:39,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 04:27:39,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:39,341 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:39,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 04:27:39,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:39,549 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:39,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:39,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1380873637, now seen corresponding path program 1 times [2024-11-14 04:27:39,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:39,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762292478] [2024-11-14 04:27:39,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:39,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:39,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:39,699 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-14 04:27:39,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:39,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762292478] [2024-11-14 04:27:39,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762292478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:39,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:39,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:27:39,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094636556] [2024-11-14 04:27:39,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:39,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:27:39,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:39,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:27:39,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:27:39,701 INFO L87 Difference]: Start difference. First operand 174 states and 227 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 04:27:40,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:40,132 INFO L93 Difference]: Finished difference Result 183 states and 236 transitions. [2024-11-14 04:27:40,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:27:40,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 42 [2024-11-14 04:27:40,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:40,134 INFO L225 Difference]: With dead ends: 183 [2024-11-14 04:27:40,134 INFO L226 Difference]: Without dead ends: 168 [2024-11-14 04:27:40,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:27:40,135 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 39 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:40,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 117 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:27:40,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-14 04:27:40,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 141. [2024-11-14 04:27:40,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 101 states have (on average 1.4257425742574257) internal successors, (144), 118 states have internal predecessors, (144), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 04:27:40,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2024-11-14 04:27:40,152 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 184 transitions. Word has length 42 [2024-11-14 04:27:40,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:40,153 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 184 transitions. [2024-11-14 04:27:40,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 04:27:40,153 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 184 transitions. [2024-11-14 04:27:40,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-14 04:27:40,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:40,154 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:40,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 04:27:40,154 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:40,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:40,157 INFO L85 PathProgramCache]: Analyzing trace with hash 2071296717, now seen corresponding path program 1 times [2024-11-14 04:27:40,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:40,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245635359] [2024-11-14 04:27:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:40,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:40,265 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 04:27:40,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:40,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245635359] [2024-11-14 04:27:40,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245635359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:27:40,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906000686] [2024-11-14 04:27:40,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:40,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:40,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:40,268 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:27:40,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:27:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:40,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:27:40,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 04:27:40,352 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:27:40,438 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 04:27:40,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906000686] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:27:40,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [152342883] [2024-11-14 04:27:40,441 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-14 04:27:40,443 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:27:40,443 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:27:40,443 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:27:40,444 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:27:41,712 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:27:41,714 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:27:41,715 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:27:42,958 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3921#(and (<= 4611686018427387904 (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) (<= 1 |#StackHeapBarrier|) (<= (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (<= (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 9223372036854775807) (= |ULTIMATE.start_main_~q~0#1| 0))' at error location [2024-11-14 04:27:42,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:27:42,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:27:42,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-14 04:27:42,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699166645] [2024-11-14 04:27:42,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:27:42,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:27:42,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:42,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:27:42,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-14 04:27:42,961 INFO L87 Difference]: Start difference. First operand 141 states and 184 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-14 04:27:43,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:43,161 INFO L93 Difference]: Finished difference Result 251 states and 323 transitions. [2024-11-14 04:27:43,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:27:43,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 44 [2024-11-14 04:27:43,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:43,164 INFO L225 Difference]: With dead ends: 251 [2024-11-14 04:27:43,164 INFO L226 Difference]: Without dead ends: 249 [2024-11-14 04:27:43,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-14 04:27:43,165 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 129 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:43,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 189 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:27:43,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-14 04:27:43,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 199. [2024-11-14 04:27:43,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 149 states have (on average 1.4161073825503356) internal successors, (211), 166 states have internal predecessors, (211), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 04:27:43,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 271 transitions. [2024-11-14 04:27:43,191 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 271 transitions. Word has length 44 [2024-11-14 04:27:43,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:43,192 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 271 transitions. [2024-11-14 04:27:43,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-14 04:27:43,192 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 271 transitions. [2024-11-14 04:27:43,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 04:27:43,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:43,194 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:43,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 04:27:43,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 04:27:43,394 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:43,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:43,395 INFO L85 PathProgramCache]: Analyzing trace with hash 160131140, now seen corresponding path program 2 times [2024-11-14 04:27:43,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:43,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122568580] [2024-11-14 04:27:43,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:43,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:27:43,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1364693917] [2024-11-14 04:27:43,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:27:43,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:43,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:43,430 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:27:43,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 04:27:43,496 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 04:27:43,496 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:27:43,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:27:43,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-14 04:27:44,093 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:27:44,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:44,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122568580] [2024-11-14 04:27:44,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:27:44,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364693917] [2024-11-14 04:27:44,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364693917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:27:44,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [197991366] [2024-11-14 04:27:44,344 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-14 04:27:44,344 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:27:44,344 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:27:44,345 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:27:44,345 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:27:45,642 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:27:45,643 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:27:45,644 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:27:47,059 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4712#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~B~0#1_42| Int) (|v_ULTIMATE.start_main_~p~0#1_66| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_42| 4294967296) |v_ULTIMATE.start_main_~p~0#1_66|))) (= |ULTIMATE.start_main_~q~0#1| 0))' at error location [2024-11-14 04:27:47,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:27:47,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:27:47,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 04:27:47,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346509136] [2024-11-14 04:27:47,059 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:27:47,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:27:47,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:47,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:27:47,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=806, Unknown=0, NotChecked=0, Total=992 [2024-11-14 04:27:47,062 INFO L87 Difference]: Start difference. First operand 199 states and 271 transitions. Second operand has 11 states, 8 states have (on average 3.25) internal successors, (26), 11 states have internal predecessors, (26), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 04:27:48,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:48,086 INFO L93 Difference]: Finished difference Result 272 states and 367 transitions. [2024-11-14 04:27:48,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:27:48,087 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 3.25) internal successors, (26), 11 states have internal predecessors, (26), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 55 [2024-11-14 04:27:48,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:48,090 INFO L225 Difference]: With dead ends: 272 [2024-11-14 04:27:48,093 INFO L226 Difference]: Without dead ends: 268 [2024-11-14 04:27:48,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=208, Invalid=914, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 04:27:48,095 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 152 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:48,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 258 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 04:27:48,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-14 04:27:48,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 199. [2024-11-14 04:27:48,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 149 states have (on average 1.4026845637583893) internal successors, (209), 166 states have internal predecessors, (209), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 04:27:48,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 269 transitions. [2024-11-14 04:27:48,124 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 269 transitions. Word has length 55 [2024-11-14 04:27:48,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:48,125 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 269 transitions. [2024-11-14 04:27:48,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 3.25) internal successors, (26), 11 states have internal predecessors, (26), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 04:27:48,126 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 269 transitions. [2024-11-14 04:27:48,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 04:27:48,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:48,132 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:48,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 04:27:48,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:48,333 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:48,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:48,333 INFO L85 PathProgramCache]: Analyzing trace with hash -781600900, now seen corresponding path program 1 times [2024-11-14 04:27:48,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:48,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623762714] [2024-11-14 04:27:48,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:48,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-14 04:27:48,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:48,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623762714] [2024-11-14 04:27:48,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623762714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:48,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:48,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:27:48,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994283643] [2024-11-14 04:27:48,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:48,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:27:48,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:48,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:27:48,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:27:48,421 INFO L87 Difference]: Start difference. First operand 199 states and 269 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-14 04:27:48,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:48,537 INFO L93 Difference]: Finished difference Result 199 states and 269 transitions. [2024-11-14 04:27:48,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:27:48,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 62 [2024-11-14 04:27:48,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:48,539 INFO L225 Difference]: With dead ends: 199 [2024-11-14 04:27:48,539 INFO L226 Difference]: Without dead ends: 198 [2024-11-14 04:27:48,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:27:48,539 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 2 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:48,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 101 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:27:48,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-14 04:27:48,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-14 04:27:48,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 149 states have (on average 1.3825503355704698) internal successors, (206), 165 states have internal predecessors, (206), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 04:27:48,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 266 transitions. [2024-11-14 04:27:48,559 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 266 transitions. Word has length 62 [2024-11-14 04:27:48,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:48,560 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 266 transitions. [2024-11-14 04:27:48,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-14 04:27:48,560 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 266 transitions. [2024-11-14 04:27:48,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 04:27:48,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:48,561 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:48,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 04:27:48,562 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:48,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:48,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1540175985, now seen corresponding path program 1 times [2024-11-14 04:27:48,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:48,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535387109] [2024-11-14 04:27:48,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:48,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:48,803 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-14 04:27:48,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:48,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535387109] [2024-11-14 04:27:48,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535387109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:48,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:48,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:27:48,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952137939] [2024-11-14 04:27:48,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:48,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:27:48,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:48,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:27:48,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:27:48,806 INFO L87 Difference]: Start difference. First operand 198 states and 266 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-14 04:27:49,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:49,344 INFO L93 Difference]: Finished difference Result 359 states and 501 transitions. [2024-11-14 04:27:49,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:27:49,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2024-11-14 04:27:49,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:49,347 INFO L225 Difference]: With dead ends: 359 [2024-11-14 04:27:49,347 INFO L226 Difference]: Without dead ends: 358 [2024-11-14 04:27:49,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:27:49,348 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 94 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:49,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 228 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:27:49,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-14 04:27:49,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 300. [2024-11-14 04:27:49,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 239 states have (on average 1.4435146443514644) internal successors, (345), 255 states have internal predecessors, (345), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-14 04:27:49,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 429 transitions. [2024-11-14 04:27:49,386 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 429 transitions. Word has length 63 [2024-11-14 04:27:49,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:49,386 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 429 transitions. [2024-11-14 04:27:49,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-14 04:27:49,387 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 429 transitions. [2024-11-14 04:27:49,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 04:27:49,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:49,388 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:49,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 04:27:49,388 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:49,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:49,389 INFO L85 PathProgramCache]: Analyzing trace with hash 500815390, now seen corresponding path program 1 times [2024-11-14 04:27:49,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:49,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495507612] [2024-11-14 04:27:49,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:49,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:49,685 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-14 04:27:49,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:49,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495507612] [2024-11-14 04:27:49,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495507612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:27:49,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998108975] [2024-11-14 04:27:49,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:49,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:49,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:49,688 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:27:49,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 04:27:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:49,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:27:49,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:49,976 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-14 04:27:49,977 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:27:49,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998108975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:49,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:27:49,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-14 04:27:49,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448455379] [2024-11-14 04:27:49,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:49,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:27:49,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:49,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:27:49,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:27:49,978 INFO L87 Difference]: Start difference. First operand 300 states and 429 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 04:27:50,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:50,245 INFO L93 Difference]: Finished difference Result 359 states and 500 transitions. [2024-11-14 04:27:50,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:27:50,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2024-11-14 04:27:50,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:50,248 INFO L225 Difference]: With dead ends: 359 [2024-11-14 04:27:50,248 INFO L226 Difference]: Without dead ends: 358 [2024-11-14 04:27:50,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:27:50,251 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 48 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:50,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 97 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:27:50,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-14 04:27:50,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 309. [2024-11-14 04:27:50,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 248 states have (on average 1.4274193548387097) internal successors, (354), 264 states have internal predecessors, (354), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-14 04:27:50,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 438 transitions. [2024-11-14 04:27:50,308 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 438 transitions. Word has length 64 [2024-11-14 04:27:50,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:50,309 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 438 transitions. [2024-11-14 04:27:50,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 04:27:50,309 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 438 transitions. [2024-11-14 04:27:50,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 04:27:50,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:50,311 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:50,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 04:27:50,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 04:27:50,512 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:50,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:50,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1654591981, now seen corresponding path program 1 times [2024-11-14 04:27:50,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:50,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873991472] [2024-11-14 04:27:50,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:50,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:50,754 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-14 04:27:50,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:50,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873991472] [2024-11-14 04:27:50,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873991472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:27:50,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267608481] [2024-11-14 04:27:50,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:50,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:50,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:50,759 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:27:50,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 04:27:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:50,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:27:50,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:50,965 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-14 04:27:50,965 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:27:50,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267608481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:50,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:27:50,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-14 04:27:50,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143378838] [2024-11-14 04:27:50,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:50,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:27:50,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:50,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:27:50,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:27:50,967 INFO L87 Difference]: Start difference. First operand 309 states and 438 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 04:27:51,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:51,216 INFO L93 Difference]: Finished difference Result 316 states and 444 transitions. [2024-11-14 04:27:51,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:27:51,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2024-11-14 04:27:51,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:51,221 INFO L225 Difference]: With dead ends: 316 [2024-11-14 04:27:51,221 INFO L226 Difference]: Without dead ends: 314 [2024-11-14 04:27:51,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:27:51,223 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 28 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:51,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 79 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:27:51,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-14 04:27:51,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 312. [2024-11-14 04:27:51,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 251 states have (on average 1.4143426294820718) internal successors, (355), 267 states have internal predecessors, (355), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-14 04:27:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 439 transitions. [2024-11-14 04:27:51,275 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 439 transitions. Word has length 65 [2024-11-14 04:27:51,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:51,277 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 439 transitions. [2024-11-14 04:27:51,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 04:27:51,277 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 439 transitions. [2024-11-14 04:27:51,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 04:27:51,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:51,281 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:51,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 04:27:51,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 04:27:51,485 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:27:51,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:51,486 INFO L85 PathProgramCache]: Analyzing trace with hash -924991819, now seen corresponding path program 1 times [2024-11-14 04:27:51,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:51,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994138189] [2024-11-14 04:27:51,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:51,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:27:51,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [416831467] [2024-11-14 04:27:51,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:51,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:27:51,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:27:51,519 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:27:51,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 04:27:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:51,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:27:51,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:27:52,238 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-14 04:27:52,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:27:52,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:52,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994138189] [2024-11-14 04:27:52,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:27:52,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416831467] [2024-11-14 04:27:52,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416831467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:27:52,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [479461917] [2024-11-14 04:27:52,767 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 04:27:52,767 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:27:52,768 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:27:52,768 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:27:52,768 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:27:56,015 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:27:56,016 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:27:56,018 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:28:12,715 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8833#(exists ((|v_ULTIMATE.start_main_~B~0#1_43| Int) (|v_ULTIMATE.start_main_~q~0#1_44| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (+ 9223372036854775809 (* (mod |v_ULTIMATE.start_main_~B~0#1_43| 4294967296) |v_ULTIMATE.start_main_~q~0#1_44|)) 0) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_44| 9223372036854775808)) (exists ((|v_ULTIMATE.start_main_~p~0#1_78| Int)) (and (<= (div |v_ULTIMATE.start_main_~p~0#1_78| 2) 9223372036854775807) (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_78| 2) 0)) (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_78| 2)) 0)) (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_78| 2)))) (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_78| 2) 0)) (= |ULTIMATE.start_main_~p~0#1| (+ (div |v_ULTIMATE.start_main_~p~0#1_78| 2) 1)) (<= (+ |v_ULTIMATE.start_main_~p~0#1_78| 1) 0)) (and (= |ULTIMATE.start_main_~p~0#1| (div |v_ULTIMATE.start_main_~p~0#1_78| 2)) (or (= (mod |v_ULTIMATE.start_main_~p~0#1_78| 2) 0) (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_78| 1))))))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807)))' at error location [2024-11-14 04:28:12,716 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:28:12,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:28:12,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 04:28:12,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872641265] [2024-11-14 04:28:12,716 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:28:12,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:28:12,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:28:12,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:28:12,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1629, Unknown=1, NotChecked=0, Total=1892 [2024-11-14 04:28:12,717 INFO L87 Difference]: Start difference. First operand 312 states and 439 transitions. Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 04:28:13,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:28:13,375 INFO L93 Difference]: Finished difference Result 389 states and 542 transitions. [2024-11-14 04:28:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:28:13,375 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 67 [2024-11-14 04:28:13,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:28:13,378 INFO L225 Difference]: With dead ends: 389 [2024-11-14 04:28:13,378 INFO L226 Difference]: Without dead ends: 388 [2024-11-14 04:28:13,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=279, Invalid=1790, Unknown=1, NotChecked=0, Total=2070 [2024-11-14 04:28:13,379 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 146 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:28:13,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 147 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:28:13,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-14 04:28:13,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 361. [2024-11-14 04:28:13,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 294 states have (on average 1.3877551020408163) internal successors, (408), 310 states have internal predecessors, (408), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 04:28:13,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 504 transitions. [2024-11-14 04:28:13,426 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 504 transitions. Word has length 67 [2024-11-14 04:28:13,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:28:13,426 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 504 transitions. [2024-11-14 04:28:13,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 04:28:13,427 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 504 transitions. [2024-11-14 04:28:13,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 04:28:13,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:28:13,428 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:28:13,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 04:28:13,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 04:28:13,628 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:28:13,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:28:13,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1390024762, now seen corresponding path program 1 times [2024-11-14 04:28:13,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:28:13,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225605307] [2024-11-14 04:28:13,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:13,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:28:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:28:13,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1430678193] [2024-11-14 04:28:13,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:13,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:28:13,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:28:13,669 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:28:13,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 04:28:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:28:13,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:28:13,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:28:14,246 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-14 04:28:14,246 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:28:14,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:28:14,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225605307] [2024-11-14 04:28:14,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:28:14,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430678193] [2024-11-14 04:28:14,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430678193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:28:14,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1631038899] [2024-11-14 04:28:14,617 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 04:28:14,618 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:28:14,618 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:28:14,618 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:28:14,618 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:28:16,643 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:28:16,644 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:28:16,645 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:28:30,685 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10027#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~B~0#1_44| Int) (|v_ULTIMATE.start_main_~q~0#1_50| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_50| (mod |v_ULTIMATE.start_main_~B~0#1_44| 4294967296))) (<= |v_ULTIMATE.start_main_~q~0#1_50| 9223372036854775807))))' at error location [2024-11-14 04:28:30,685 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:28:30,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:28:30,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 04:28:30,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397547026] [2024-11-14 04:28:30,686 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:28:30,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:28:30,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:28:30,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:28:30,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=1681, Unknown=2, NotChecked=0, Total=1980 [2024-11-14 04:28:30,687 INFO L87 Difference]: Start difference. First operand 361 states and 504 transitions. Second operand has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 04:28:31,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:28:31,220 INFO L93 Difference]: Finished difference Result 424 states and 591 transitions. [2024-11-14 04:28:31,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:28:31,221 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 68 [2024-11-14 04:28:31,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:28:31,223 INFO L225 Difference]: With dead ends: 424 [2024-11-14 04:28:31,223 INFO L226 Difference]: Without dead ends: 423 [2024-11-14 04:28:31,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=306, Invalid=1762, Unknown=2, NotChecked=0, Total=2070 [2024-11-14 04:28:31,225 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 100 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:28:31,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 177 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:28:31,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-14 04:28:31,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 410. [2024-11-14 04:28:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 337 states have (on average 1.3620178041543027) internal successors, (459), 353 states have internal predecessors, (459), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 04:28:31,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 567 transitions. [2024-11-14 04:28:31,284 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 567 transitions. Word has length 68 [2024-11-14 04:28:31,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:28:31,285 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 567 transitions. [2024-11-14 04:28:31,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.222222222222222) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 04:28:31,285 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 567 transitions. [2024-11-14 04:28:31,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 04:28:31,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:28:31,286 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:28:31,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 04:28:31,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 04:28:31,487 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:28:31,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:28:31,487 INFO L85 PathProgramCache]: Analyzing trace with hash 141094743, now seen corresponding path program 1 times [2024-11-14 04:28:31,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:28:31,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386211534] [2024-11-14 04:28:31,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:31,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:28:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:28:31,603 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-14 04:28:31,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:28:31,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386211534] [2024-11-14 04:28:31,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386211534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:28:31,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:28:31,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:28:31,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279114639] [2024-11-14 04:28:31,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:28:31,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:28:31,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:28:31,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:28:31,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:28:31,606 INFO L87 Difference]: Start difference. First operand 410 states and 567 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-14 04:28:31,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:28:31,964 INFO L93 Difference]: Finished difference Result 410 states and 567 transitions. [2024-11-14 04:28:31,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:28:31,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2024-11-14 04:28:31,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:28:31,967 INFO L225 Difference]: With dead ends: 410 [2024-11-14 04:28:31,967 INFO L226 Difference]: Without dead ends: 409 [2024-11-14 04:28:31,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:28:31,968 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 71 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:28:31,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 87 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:28:31,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-14 04:28:32,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 397. [2024-11-14 04:28:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 325 states have (on average 1.3323076923076924) internal successors, (433), 340 states have internal predecessors, (433), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 04:28:32,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 541 transitions. [2024-11-14 04:28:32,028 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 541 transitions. Word has length 69 [2024-11-14 04:28:32,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:28:32,029 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 541 transitions. [2024-11-14 04:28:32,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-14 04:28:32,029 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 541 transitions. [2024-11-14 04:28:32,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 04:28:32,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:28:32,030 INFO L215 NwaCegarLoop]: trace histogram [11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:28:32,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 04:28:32,030 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:28:32,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:28:32,031 INFO L85 PathProgramCache]: Analyzing trace with hash 135345122, now seen corresponding path program 3 times [2024-11-14 04:28:32,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:28:32,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479035584] [2024-11-14 04:28:32,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:32,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:28:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:28:32,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542933360] [2024-11-14 04:28:32,057 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:28:32,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:28:32,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:28:32,060 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:28:32,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 04:28:32,129 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:28:32,130 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:28:32,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 04:28:32,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:28:32,525 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 04:28:32,525 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:28:32,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:28:32,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479035584] [2024-11-14 04:28:32,705 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:28:32,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542933360] [2024-11-14 04:28:32,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542933360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:28:32,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1879735461] [2024-11-14 04:28:32,707 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-14 04:28:32,707 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:28:32,707 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:28:32,707 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:28:32,707 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:28:33,764 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:28:33,766 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:28:33,767 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:28:35,859 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12317#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~B~0#1_45| Int) (|v_ULTIMATE.start_main_~p~0#1_97| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_45| 4294967296) |v_ULTIMATE.start_main_~p~0#1_97|))))' at error location [2024-11-14 04:28:35,859 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:28:35,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:28:35,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 04:28:35,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328325531] [2024-11-14 04:28:35,859 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:28:35,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:28:35,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:28:35,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:28:35,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=771, Unknown=0, NotChecked=0, Total=930 [2024-11-14 04:28:35,861 INFO L87 Difference]: Start difference. First operand 397 states and 541 transitions. Second operand has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 11 states have internal predecessors, (33), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-14 04:28:36,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:28:36,893 INFO L93 Difference]: Finished difference Result 430 states and 575 transitions. [2024-11-14 04:28:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:28:36,894 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 11 states have internal predecessors, (33), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 72 [2024-11-14 04:28:36,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:28:36,896 INFO L225 Difference]: With dead ends: 430 [2024-11-14 04:28:36,897 INFO L226 Difference]: Without dead ends: 426 [2024-11-14 04:28:36,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=230, Invalid=1252, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 04:28:36,898 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 158 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:28:36,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 376 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 04:28:36,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-14 04:28:36,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 327. [2024-11-14 04:28:36,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 263 states have (on average 1.3003802281368821) internal successors, (342), 278 states have internal predecessors, (342), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-14 04:28:36,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 434 transitions. [2024-11-14 04:28:36,953 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 434 transitions. Word has length 72 [2024-11-14 04:28:36,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:28:36,953 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 434 transitions. [2024-11-14 04:28:36,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 11 states have internal predecessors, (33), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-14 04:28:36,954 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 434 transitions. [2024-11-14 04:28:36,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 04:28:36,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:28:36,955 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:28:36,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 04:28:37,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:28:37,155 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:28:37,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:28:37,156 INFO L85 PathProgramCache]: Analyzing trace with hash 78969820, now seen corresponding path program 1 times [2024-11-14 04:28:37,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:28:37,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570917490] [2024-11-14 04:28:37,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:37,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:28:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:28:37,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [374232443] [2024-11-14 04:28:37,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:37,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:28:37,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:28:37,185 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:28:37,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 04:28:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:28:37,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 04:28:37,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:28:38,091 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-14 04:28:38,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:28:40,247 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-14 04:28:40,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:28:40,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570917490] [2024-11-14 04:28:40,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:28:40,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374232443] [2024-11-14 04:28:40,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374232443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:28:40,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [557129566] [2024-11-14 04:28:40,249 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 04:28:40,249 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:28:40,249 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:28:40,249 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:28:40,249 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:28:41,963 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:28:41,964 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:28:41,965 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:29:01,132 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13699#(exists ((|v_ULTIMATE.start_main_~q~0#1_57| Int) (|v_ULTIMATE.start_main_~B~0#1_46| Int) (|v_ULTIMATE.start_main_~r~0#1_51| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~q~0#1_57| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_57| 9223372036854775808)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~r~0#1_51| (* |v_ULTIMATE.start_main_~q~0#1_57| (mod |v_ULTIMATE.start_main_~B~0#1_46| 4294967296)))) (<= (* |v_ULTIMATE.start_main_~q~0#1_57| (mod |v_ULTIMATE.start_main_~B~0#1_46| 4294967296)) 9223372036854775807)))' at error location [2024-11-14 04:29:01,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:29:01,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:29:01,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2024-11-14 04:29:01,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178894326] [2024-11-14 04:29:01,133 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:29:01,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 04:29:01,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:29:01,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 04:29:01,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=2403, Unknown=2, NotChecked=0, Total=2756 [2024-11-14 04:29:01,136 INFO L87 Difference]: Start difference. First operand 327 states and 434 transitions. Second operand has 22 states, 20 states have (on average 3.8) internal successors, (76), 22 states have internal predecessors, (76), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-14 04:29:08,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:08,541 INFO L93 Difference]: Finished difference Result 475 states and 631 transitions. [2024-11-14 04:29:08,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-14 04:29:08,542 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.8) internal successors, (76), 22 states have internal predecessors, (76), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 70 [2024-11-14 04:29:08,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:08,545 INFO L225 Difference]: With dead ends: 475 [2024-11-14 04:29:08,545 INFO L226 Difference]: Without dead ends: 357 [2024-11-14 04:29:08,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2112 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=795, Invalid=5365, Unknown=2, NotChecked=0, Total=6162 [2024-11-14 04:29:08,548 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 350 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:08,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 282 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-14 04:29:08,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-14 04:29:08,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 320. [2024-11-14 04:29:08,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 260 states have (on average 1.2961538461538462) internal successors, (337), 275 states have internal predecessors, (337), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-14 04:29:08,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 421 transitions. [2024-11-14 04:29:08,611 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 421 transitions. Word has length 70 [2024-11-14 04:29:08,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:08,611 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 421 transitions. [2024-11-14 04:29:08,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.8) internal successors, (76), 22 states have internal predecessors, (76), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-14 04:29:08,612 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 421 transitions. [2024-11-14 04:29:08,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 04:29:08,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:08,613 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:08,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-14 04:29:08,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:08,817 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:29:08,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:08,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1718543877, now seen corresponding path program 1 times [2024-11-14 04:29:08,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:08,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169610922] [2024-11-14 04:29:08,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:08,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:29:08,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [862844781] [2024-11-14 04:29:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:08,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:08,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:08,856 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:29:08,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 04:29:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:08,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:29:08,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:09,500 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-14 04:29:09,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:10,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:29:10,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169610922] [2024-11-14 04:29:10,204 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:29:10,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862844781] [2024-11-14 04:29:10,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862844781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:29:10,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1954244070] [2024-11-14 04:29:10,206 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 04:29:10,206 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:29:10,206 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:29:10,207 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:29:10,207 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:29:12,415 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:29:12,416 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:29:12,417 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:29:26,119 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15065#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_63| Int) (|v_ULTIMATE.start_main_~d~0#1_116| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_63| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~q~0#1_63| 9223372036854775807) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_63| |v_ULTIMATE.start_main_~d~0#1_116|)) 0))))' at error location [2024-11-14 04:29:26,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:29:26,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:29:26,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-14 04:29:26,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251768349] [2024-11-14 04:29:26,119 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:29:26,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 04:29:26,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:29:26,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 04:29:26,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=1607, Unknown=1, NotChecked=0, Total=1892 [2024-11-14 04:29:26,122 INFO L87 Difference]: Start difference. First operand 320 states and 421 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-14 04:29:26,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:26,683 INFO L93 Difference]: Finished difference Result 325 states and 428 transitions. [2024-11-14 04:29:26,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:29:26,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 80 [2024-11-14 04:29:26,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:26,687 INFO L225 Difference]: With dead ends: 325 [2024-11-14 04:29:26,687 INFO L226 Difference]: Without dead ends: 324 [2024-11-14 04:29:26,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=311, Invalid=1850, Unknown=1, NotChecked=0, Total=2162 [2024-11-14 04:29:26,690 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 30 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:26,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 213 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:29:26,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-14 04:29:26,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 321. [2024-11-14 04:29:26,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 261 states have (on average 1.2950191570881227) internal successors, (338), 276 states have internal predecessors, (338), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-14 04:29:26,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 422 transitions. [2024-11-14 04:29:26,763 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 422 transitions. Word has length 80 [2024-11-14 04:29:26,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:26,764 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 422 transitions. [2024-11-14 04:29:26,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 9 states have internal predecessors, (43), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-14 04:29:26,764 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 422 transitions. [2024-11-14 04:29:26,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 04:29:26,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:26,766 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:26,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 04:29:26,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-14 04:29:26,966 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:29:26,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:26,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1735252512, now seen corresponding path program 1 times [2024-11-14 04:29:26,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:26,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83979597] [2024-11-14 04:29:26,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:26,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:29:26,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [470472723] [2024-11-14 04:29:26,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:26,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:26,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:27,000 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:29:27,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 04:29:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:27,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 04:29:27,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:27,896 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-14 04:29:27,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:29,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:29:29,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83979597] [2024-11-14 04:29:29,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:29:29,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470472723] [2024-11-14 04:29:29,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470472723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:29:29,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1683669768] [2024-11-14 04:29:29,250 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2024-11-14 04:29:29,250 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:29:29,251 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:29:29,251 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:29:29,251 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:29:31,492 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:29:31,493 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:29:31,494 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:29:38,952 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16218#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~q~0#1_69| Int) (|v_ULTIMATE.start_main_~d~0#1_127| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_69| |v_ULTIMATE.start_main_~d~0#1_127|)) (<= |v_ULTIMATE.start_main_~q~0#1_69| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_69| 9223372036854775808)))))' at error location [2024-11-14 04:29:38,952 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:29:38,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:29:38,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-14 04:29:38,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982750073] [2024-11-14 04:29:38,953 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:29:38,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 04:29:38,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:29:38,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 04:29:38,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=2027, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 04:29:38,954 INFO L87 Difference]: Start difference. First operand 321 states and 422 transitions. Second operand has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-14 04:29:40,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:40,111 INFO L93 Difference]: Finished difference Result 528 states and 707 transitions. [2024-11-14 04:29:40,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:29:40,111 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 81 [2024-11-14 04:29:40,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:40,113 INFO L225 Difference]: With dead ends: 528 [2024-11-14 04:29:40,113 INFO L226 Difference]: Without dead ends: 354 [2024-11-14 04:29:40,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1204 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=427, Invalid=2879, Unknown=0, NotChecked=0, Total=3306 [2024-11-14 04:29:40,116 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 102 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:40,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 300 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 04:29:40,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-14 04:29:40,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 349. [2024-11-14 04:29:40,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 286 states have (on average 1.2937062937062938) internal successors, (370), 300 states have internal predecessors, (370), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-14 04:29:40,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 462 transitions. [2024-11-14 04:29:40,187 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 462 transitions. Word has length 81 [2024-11-14 04:29:40,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:40,187 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 462 transitions. [2024-11-14 04:29:40,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.5) internal successors, (45), 12 states have internal predecessors, (45), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-14 04:29:40,188 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 462 transitions. [2024-11-14 04:29:40,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 04:29:40,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:40,189 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:40,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 04:29:40,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-14 04:29:40,393 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:29:40,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:40,395 INFO L85 PathProgramCache]: Analyzing trace with hash 2041747101, now seen corresponding path program 1 times [2024-11-14 04:29:40,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:40,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612030192] [2024-11-14 04:29:40,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:40,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:40,615 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-14 04:29:40,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:29:40,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612030192] [2024-11-14 04:29:40,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612030192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:40,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:29:40,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:29:40,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188946607] [2024-11-14 04:29:40,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:40,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:29:40,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:29:40,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:29:40,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:29:40,617 INFO L87 Difference]: Start difference. First operand 349 states and 462 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 04:29:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:41,676 INFO L93 Difference]: Finished difference Result 349 states and 462 transitions. [2024-11-14 04:29:41,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:29:41,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 82 [2024-11-14 04:29:41,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:41,678 INFO L225 Difference]: With dead ends: 349 [2024-11-14 04:29:41,678 INFO L226 Difference]: Without dead ends: 348 [2024-11-14 04:29:41,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:29:41,679 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 45 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:41,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 123 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 04:29:41,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-14 04:29:41,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-11-14 04:29:41,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 286 states have (on average 1.2902097902097902) internal successors, (369), 299 states have internal predecessors, (369), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-14 04:29:41,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 461 transitions. [2024-11-14 04:29:41,754 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 461 transitions. Word has length 82 [2024-11-14 04:29:41,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:41,755 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 461 transitions. [2024-11-14 04:29:41,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 04:29:41,755 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 461 transitions. [2024-11-14 04:29:41,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 04:29:41,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:41,757 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:41,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-14 04:29:41,757 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:29:41,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:41,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1130349182, now seen corresponding path program 1 times [2024-11-14 04:29:41,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:41,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621661467] [2024-11-14 04:29:41,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:41,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:29:41,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1581473290] [2024-11-14 04:29:41,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:41,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:41,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:41,784 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:29:41,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 04:29:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:41,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 04:29:41,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:42,794 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-14 04:29:42,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:45,934 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-14 04:29:45,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:29:45,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621661467] [2024-11-14 04:29:45,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:29:45,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581473290] [2024-11-14 04:29:45,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581473290] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:45,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [760874338] [2024-11-14 04:29:45,936 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2024-11-14 04:29:45,936 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:29:45,937 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:29:45,937 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:29:45,937 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:29:47,907 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:29:47,908 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:29:47,909 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:29:55,573 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18686#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~d~0#1_140| Int) (|v_ULTIMATE.start_main_~q~0#1_76| Int)) (and (<= (* |v_ULTIMATE.start_main_~q~0#1_76| |v_ULTIMATE.start_main_~d~0#1_140|) 9223372036854775807) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_76| |v_ULTIMATE.start_main_~d~0#1_140|))) (<= |v_ULTIMATE.start_main_~q~0#1_76| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_76| 9223372036854775808)))))' at error location [2024-11-14 04:29:55,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:29:55,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:29:55,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2024-11-14 04:29:55,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034383432] [2024-11-14 04:29:55,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:29:55,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 04:29:55,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:29:55,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 04:29:55,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=2388, Unknown=0, NotChecked=0, Total=2756 [2024-11-14 04:29:55,576 INFO L87 Difference]: Start difference. First operand 348 states and 461 transitions. Second operand has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-14 04:30:00,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:30:00,626 INFO L93 Difference]: Finished difference Result 386 states and 505 transitions. [2024-11-14 04:30:00,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 04:30:00,627 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 83 [2024-11-14 04:30:00,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:30:00,628 INFO L225 Difference]: With dead ends: 386 [2024-11-14 04:30:00,629 INFO L226 Difference]: Without dead ends: 379 [2024-11-14 04:30:00,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1599 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=535, Invalid=3755, Unknown=0, NotChecked=0, Total=4290 [2024-11-14 04:30:00,630 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 128 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:30:00,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 285 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-14 04:30:00,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-14 04:30:00,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 345. [2024-11-14 04:30:00,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 283 states have (on average 1.2791519434628975) internal successors, (362), 296 states have internal predecessors, (362), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-14 04:30:00,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 454 transitions. [2024-11-14 04:30:00,680 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 454 transitions. Word has length 83 [2024-11-14 04:30:00,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:30:00,681 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 454 transitions. [2024-11-14 04:30:00,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.294117647058823) internal successors, (90), 19 states have internal predecessors, (90), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-14 04:30:00,681 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 454 transitions. [2024-11-14 04:30:00,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 04:30:00,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:30:00,682 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:30:00,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 04:30:00,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-14 04:30:00,887 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:30:00,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:30:00,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1122569555, now seen corresponding path program 2 times [2024-11-14 04:30:00,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:30:00,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934209020] [2024-11-14 04:30:00,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:30:00,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:30:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:30:00,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1115051410] [2024-11-14 04:30:00,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:30:00,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:30:00,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:30:00,914 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:30:00,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 04:30:00,984 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 04:30:00,985 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:30:00,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 04:30:00,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:30:17,802 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 04:30:17,802 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:30:18,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:30:18,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934209020] [2024-11-14 04:30:18,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:30:18,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115051410] [2024-11-14 04:30:18,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115051410] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:30:18,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [597529914] [2024-11-14 04:30:18,582 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 04:30:18,582 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:30:18,582 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:30:18,582 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:30:18,582 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:30:20,320 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:30:20,321 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:30:20,322 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:30:43,096 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19931#(exists ((|v_ULTIMATE.start_main_~q~0#1_82| Int) (|v_ULTIMATE.start_main_~B~0#1_49| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_82| 9223372036854775808)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_82| (mod |v_ULTIMATE.start_main_~B~0#1_49| 4294967296))) 0) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~p~0#1_153| Int)) (and (<= (div |v_ULTIMATE.start_main_~p~0#1_153| 2) 9223372036854775807) (or (and (<= (+ |v_ULTIMATE.start_main_~p~0#1_153| 1) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_153| 2) 0)) (= |ULTIMATE.start_main_~p~0#1| (+ (div |v_ULTIMATE.start_main_~p~0#1_153| 2) 1))) (and (or (= (mod |v_ULTIMATE.start_main_~p~0#1_153| 2) 0) (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_153| 1))) (= |ULTIMATE.start_main_~p~0#1| (div |v_ULTIMATE.start_main_~p~0#1_153| 2)))) (or (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_153| 2))) (and (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_153| 2)) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_153| 2) 0))))))))' at error location [2024-11-14 04:30:43,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:30:43,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:30:43,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 04:30:43,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101870910] [2024-11-14 04:30:43,097 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:30:43,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:30:43,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:30:43,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:30:43,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=1592, Unknown=5, NotChecked=0, Total=1892 [2024-11-14 04:30:43,099 INFO L87 Difference]: Start difference. First operand 345 states and 454 transitions. Second operand has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-14 04:30:45,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:30:47,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:30:49,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:30:51,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:30:53,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:30:55,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:31:05,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:31:05,772 INFO L93 Difference]: Finished difference Result 409 states and 543 transitions. [2024-11-14 04:31:05,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 04:31:05,773 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 84 [2024-11-14 04:31:05,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:31:05,775 INFO L225 Difference]: With dead ends: 409 [2024-11-14 04:31:05,775 INFO L226 Difference]: Without dead ends: 408 [2024-11-14 04:31:05,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1001 ImplicationChecksByTransitivity, 37.8s TimeCoverageRelationStatistics Valid=382, Invalid=2163, Unknown=5, NotChecked=0, Total=2550 [2024-11-14 04:31:05,778 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 60 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 19 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:31:05,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 145 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 388 Invalid, 6 Unknown, 0 Unchecked, 14.1s Time] [2024-11-14 04:31:05,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-14 04:31:05,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 383. [2024-11-14 04:31:05,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 317 states have (on average 1.277602523659306) internal successors, (405), 330 states have internal predecessors, (405), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 04:31:05,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 505 transitions. [2024-11-14 04:31:05,865 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 505 transitions. Word has length 84 [2024-11-14 04:31:05,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:31:05,866 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 505 transitions. [2024-11-14 04:31:05,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.555555555555555) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-14 04:31:05,867 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 505 transitions. [2024-11-14 04:31:05,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 04:31:05,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:05,869 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:31:05,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-14 04:31:06,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 04:31:06,074 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:31:06,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:06,074 INFO L85 PathProgramCache]: Analyzing trace with hash 439917916, now seen corresponding path program 2 times [2024-11-14 04:31:06,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:31:06,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347790329] [2024-11-14 04:31:06,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:06,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:31:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:31:06,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [439606292] [2024-11-14 04:31:06,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:31:06,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:31:06,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:31:06,102 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:31:06,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 04:31:06,176 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 04:31:06,177 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:31:06,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 04:31:06,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:31:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-14 04:31:23,628 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:31:24,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:31:24,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347790329] [2024-11-14 04:31:24,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:31:24,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439606292] [2024-11-14 04:31:24,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439606292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:31:24,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1268537246] [2024-11-14 04:31:24,933 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 04:31:24,934 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:31:24,934 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:31:24,934 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:31:24,934 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:31:26,830 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:31:26,831 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:31:26,832 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:31:42,542 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21238#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~B~0#1_52| Int) (|v_ULTIMATE.start_main_~q~0#1_88| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_88| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_88| (mod |v_ULTIMATE.start_main_~B~0#1_52| 4294967296))))))' at error location [2024-11-14 04:31:42,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:31:42,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:31:42,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-14 04:31:42,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234344472] [2024-11-14 04:31:42,542 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:31:42,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:31:42,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:31:42,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:31:42,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=2002, Unknown=2, NotChecked=0, Total=2352 [2024-11-14 04:31:42,544 INFO L87 Difference]: Start difference. First operand 383 states and 505 transitions. Second operand has 13 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-14 04:31:44,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:31:49,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:31:51,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:31:53,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:31:55,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:32:01,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:32:03,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:32:07,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:07,242 INFO L93 Difference]: Finished difference Result 409 states and 538 transitions. [2024-11-14 04:32:07,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:32:07,243 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 85 [2024-11-14 04:32:07,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:07,244 INFO L225 Difference]: With dead ends: 409 [2024-11-14 04:32:07,244 INFO L226 Difference]: Without dead ends: 408 [2024-11-14 04:32:07,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1319 ImplicationChecksByTransitivity, 32.3s TimeCoverageRelationStatistics Valid=502, Invalid=3036, Unknown=2, NotChecked=0, Total=3540 [2024-11-14 04:32:07,246 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 152 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 22 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:07,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 160 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 431 Invalid, 7 Unknown, 0 Unchecked, 15.7s Time] [2024-11-14 04:32:07,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-14 04:32:07,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 383. [2024-11-14 04:32:07,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 317 states have (on average 1.2618296529968454) internal successors, (400), 330 states have internal predecessors, (400), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 04:32:07,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 500 transitions. [2024-11-14 04:32:07,333 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 500 transitions. Word has length 85 [2024-11-14 04:32:07,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:07,334 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 500 transitions. [2024-11-14 04:32:07,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-14 04:32:07,334 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 500 transitions. [2024-11-14 04:32:07,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 04:32:07,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:07,335 INFO L215 NwaCegarLoop]: trace histogram [14, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:07,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 04:32:07,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:32:07,536 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:32:07,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:07,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1149523972, now seen corresponding path program 4 times [2024-11-14 04:32:07,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:32:07,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110958518] [2024-11-14 04:32:07,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:07,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:32:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:32:07,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654770438] [2024-11-14 04:32:07,560 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:32:07,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:32:07,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:32:07,566 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:32:07,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 04:32:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:07,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:32:07,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:32:08,027 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 87 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-14 04:32:08,027 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:32:08,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:32:08,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110958518] [2024-11-14 04:32:08,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:32:08,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654770438] [2024-11-14 04:32:08,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654770438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:32:08,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1607501020] [2024-11-14 04:32:08,152 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-14 04:32:08,152 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:32:08,152 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:32:08,153 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:32:08,153 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:32:08,936 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:32:08,940 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:32:08,942 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:32:10,373 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22561#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~B~0#1_53| Int) (|v_ULTIMATE.start_main_~p~0#1_175| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_53| 4294967296) |v_ULTIMATE.start_main_~p~0#1_175|))))' at error location [2024-11-14 04:32:10,373 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:32:10,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:32:10,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-14 04:32:10,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625564339] [2024-11-14 04:32:10,373 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:32:10,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 04:32:10,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:32:10,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 04:32:10,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2024-11-14 04:32:10,375 INFO L87 Difference]: Start difference. First operand 383 states and 500 transitions. Second operand has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-14 04:32:10,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:10,814 INFO L93 Difference]: Finished difference Result 642 states and 873 transitions. [2024-11-14 04:32:10,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:32:10,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 89 [2024-11-14 04:32:10,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:10,818 INFO L225 Difference]: With dead ends: 642 [2024-11-14 04:32:10,818 INFO L226 Difference]: Without dead ends: 638 [2024-11-14 04:32:10,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2024-11-14 04:32:10,820 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 187 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:10,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 202 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:32:10,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-14 04:32:10,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 501. [2024-11-14 04:32:10,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 420 states have (on average 1.269047619047619) internal successors, (533), 433 states have internal predecessors, (533), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 04:32:10,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 663 transitions. [2024-11-14 04:32:10,925 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 663 transitions. Word has length 89 [2024-11-14 04:32:10,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:10,925 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 663 transitions. [2024-11-14 04:32:10,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-11-14 04:32:10,926 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 663 transitions. [2024-11-14 04:32:10,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 04:32:10,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:10,927 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:10,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-14 04:32:11,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-14 04:32:11,131 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:32:11,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:11,131 INFO L85 PathProgramCache]: Analyzing trace with hash 344527559, now seen corresponding path program 1 times [2024-11-14 04:32:11,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:32:11,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495035737] [2024-11-14 04:32:11,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:11,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:32:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:11,487 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-14 04:32:11,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:32:11,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495035737] [2024-11-14 04:32:11,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495035737] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:32:11,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927518076] [2024-11-14 04:32:11,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:11,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:32:11,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:32:11,490 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:32:11,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 04:32:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:11,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:32:11,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:32:11,691 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-14 04:32:11,691 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:32:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-14 04:32:11,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927518076] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:32:11,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1331945640] [2024-11-14 04:32:11,918 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 04:32:11,919 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:32:11,919 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:32:11,919 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:32:11,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:32:14,020 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:32:14,021 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:32:14,023 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:33:06,557 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24471#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_188| Int)) (and (or (and (<= (+ |v_ULTIMATE.start_main_~p~0#1_188| 1) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_188| 2) 0)) (= |ULTIMATE.start_main_~p~0#1| (+ (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 1))) (and (or (= (mod |v_ULTIMATE.start_main_~p~0#1_188| 2) 0) (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_188| 1))) (= (div |v_ULTIMATE.start_main_~p~0#1_188| 2) |ULTIMATE.start_main_~p~0#1|))) (or (< (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 9223372036854775807) (= (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 9223372036854775807)) (or (and (not (= (mod |v_ULTIMATE.start_main_~p~0#1_188| 2) 0)) (= (+ (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 9223372036854775809) 0)) (< 0 (+ (div |v_ULTIMATE.start_main_~p~0#1_188| 2) 9223372036854775809))))))' at error location [2024-11-14 04:33:06,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:33:06,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:33:06,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2024-11-14 04:33:06,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106215362] [2024-11-14 04:33:06,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:33:06,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 04:33:06,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:33:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 04:33:06,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1569, Unknown=24, NotChecked=0, Total=1806 [2024-11-14 04:33:06,560 INFO L87 Difference]: Start difference. First operand 501 states and 663 transitions. Second operand has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-14 04:33:08,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:08,017 INFO L93 Difference]: Finished difference Result 913 states and 1232 transitions. [2024-11-14 04:33:08,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 04:33:08,018 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 86 [2024-11-14 04:33:08,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:08,022 INFO L225 Difference]: With dead ends: 913 [2024-11-14 04:33:08,022 INFO L226 Difference]: Without dead ends: 778 [2024-11-14 04:33:08,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 52.9s TimeCoverageRelationStatistics Valid=286, Invalid=2552, Unknown=24, NotChecked=0, Total=2862 [2024-11-14 04:33:08,025 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 188 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:08,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 470 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 04:33:08,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-11-14 04:33:08,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 496. [2024-11-14 04:33:08,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 415 states have (on average 1.306024096385542) internal successors, (542), 428 states have internal predecessors, (542), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 04:33:08,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 672 transitions. [2024-11-14 04:33:08,205 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 672 transitions. Word has length 86 [2024-11-14 04:33:08,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:08,205 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 672 transitions. [2024-11-14 04:33:08,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-14 04:33:08,206 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 672 transitions. [2024-11-14 04:33:08,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-14 04:33:08,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:08,207 INFO L215 NwaCegarLoop]: trace histogram [17, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:08,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 04:33:08,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:33:08,412 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:33:08,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:08,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1147290590, now seen corresponding path program 5 times [2024-11-14 04:33:08,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:33:08,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514930827] [2024-11-14 04:33:08,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:08,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:33:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:33:08,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729918806] [2024-11-14 04:33:08,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:33:08,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:33:08,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:33:08,478 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:33:08,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 04:33:08,558 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 04:33:08,558 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:33:08,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 04:33:08,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:14,006 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 64 proven. 13 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-14 04:33:14,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:14,512 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 74 proven. 1 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-14 04:33:14,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:33:14,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514930827] [2024-11-14 04:33:14,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:33:14,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729918806] [2024-11-14 04:33:14,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729918806] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:33:14,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [54682965] [2024-11-14 04:33:14,514 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-14 04:33:14,514 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:33:14,515 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:33:14,515 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:33:14,515 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:33:15,786 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:33:15,787 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:33:15,788 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:33:17,892 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26853#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1_197| Int) (|v_ULTIMATE.start_main_~B~0#1_58| Int)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_58| 4294967296) |v_ULTIMATE.start_main_~p~0#1_197|))))' at error location [2024-11-14 04:33:17,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:33:17,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:33:17,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 14 [2024-11-14 04:33:17,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941603275] [2024-11-14 04:33:17,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:33:17,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 04:33:17,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:33:17,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 04:33:17,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=810, Unknown=2, NotChecked=0, Total=992 [2024-11-14 04:33:17,894 INFO L87 Difference]: Start difference. First operand 496 states and 672 transitions. Second operand has 15 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (18), 10 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-14 04:33:20,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:33:22,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:33:24,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:33:25,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:25,168 INFO L93 Difference]: Finished difference Result 497 states and 673 transitions. [2024-11-14 04:33:25,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 04:33:25,169 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (18), 10 states have call predecessors, (18), 6 states have call successors, (18) Word has length 106 [2024-11-14 04:33:25,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:25,170 INFO L225 Difference]: With dead ends: 497 [2024-11-14 04:33:25,170 INFO L226 Difference]: Without dead ends: 495 [2024-11-14 04:33:25,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=276, Invalid=1204, Unknown=2, NotChecked=0, Total=1482 [2024-11-14 04:33:25,172 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 112 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 44 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:25,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 158 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 363 Invalid, 3 Unknown, 0 Unchecked, 6.7s Time] [2024-11-14 04:33:25,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-14 04:33:25,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 494. [2024-11-14 04:33:25,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 415 states have (on average 1.2867469879518072) internal successors, (534), 426 states have internal predecessors, (534), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 04:33:25,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 664 transitions. [2024-11-14 04:33:25,279 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 664 transitions. Word has length 106 [2024-11-14 04:33:25,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:25,280 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 664 transitions. [2024-11-14 04:33:25,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 6 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (18), 10 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-14 04:33:25,280 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 664 transitions. [2024-11-14 04:33:25,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-14 04:33:25,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:25,281 INFO L215 NwaCegarLoop]: trace histogram [14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:25,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 04:33:25,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:33:25,481 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:33:25,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:25,482 INFO L85 PathProgramCache]: Analyzing trace with hash -700017636, now seen corresponding path program 2 times [2024-11-14 04:33:25,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:33:25,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504651613] [2024-11-14 04:33:25,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:25,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:33:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:33:25,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1037700651] [2024-11-14 04:33:25,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:33:25,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:33:25,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:33:25,518 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:33:25,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 04:33:25,588 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 04:33:25,588 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:33:25,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 04:33:25,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:40,565 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 04:33:46,576 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 04:34:00,613 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 04:34:06,625 WARN L851 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_main_~r~0#1| 20) (<= |c_ULTIMATE.start_main_~q~0#1| 0) (let ((.cse3 (* |c_ULTIMATE.start_main_~p~0#1| (mod |c_ULTIMATE.start_main_~B~0#1| 4294967296)))) (let ((.cse2 (+ 1 .cse3)) (.cse0 (= (mod .cse3 2) 0)) (.cse1 (div .cse3 2))) (or (and (not .cse0) (= (+ 1 .cse1) |c_ULTIMATE.start_main_~d~0#1|) (<= .cse2 0)) (and (or (< 0 .cse2) .cse0) (= |c_ULTIMATE.start_main_~d~0#1| .cse1))))) (= (mod |c_ULTIMATE.start_main_~p~0#1| 2) 0)) is different from false [2024-11-14 04:34:18,672 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 04:34:24,682 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 04:34:38,743 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 04:34:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-14 04:34:43,030 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:34:46,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:46,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504651613] [2024-11-14 04:34:46,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:34:46,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037700651] [2024-11-14 04:34:46,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037700651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:34:46,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1514755075] [2024-11-14 04:34:46,865 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 04:34:46,865 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:34:46,865 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:34:46,865 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:34:46,865 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:34:48,927 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:34:48,929 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:34:48,930 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:35:13,086 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28456#(exists ((|v_ULTIMATE.start_main_~B~0#1_61| Int) (|v_ULTIMATE.start_main_~q~0#1_99| Int) (|v_ULTIMATE.start_main_~r~0#1_88| Int)) (and (<= (* |v_ULTIMATE.start_main_~q~0#1_99| (mod |v_ULTIMATE.start_main_~B~0#1_61| 4294967296)) 9223372036854775807) (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_99| (mod |v_ULTIMATE.start_main_~B~0#1_61| 4294967296)) |v_ULTIMATE.start_main_~r~0#1_88|)) (<= |v_ULTIMATE.start_main_~q~0#1_99| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_99| 9223372036854775808))))' at error location [2024-11-14 04:35:13,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:35:13,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:35:13,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-14 04:35:13,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327181148] [2024-11-14 04:35:13,087 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:35:13,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:35:13,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:35:13,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:35:13,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=1973, Unknown=2, NotChecked=92, Total=2352 [2024-11-14 04:35:13,089 INFO L87 Difference]: Start difference. First operand 494 states and 664 transitions. Second operand has 13 states, 10 states have (on average 4.4) internal successors, (44), 13 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-14 04:35:20,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:35:22,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:35:24,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 04:35:26,198 WARN L851 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_main_~r~0#1| 20) (<= |c_ULTIMATE.start_main_~q~0#1| 0) (let ((.cse3 (* |c_ULTIMATE.start_main_~p~0#1| (mod |c_ULTIMATE.start_main_~B~0#1| 4294967296)))) (let ((.cse2 (+ 1 .cse3)) (.cse0 (= (mod .cse3 2) 0)) (.cse1 (div .cse3 2))) (or (and (not .cse0) (= (+ 1 .cse1) |c_ULTIMATE.start_main_~d~0#1|) (<= .cse2 0)) (and (or (< 0 .cse2) .cse0) (= |c_ULTIMATE.start_main_~d~0#1| .cse1))))) (<= (mod |c_ULTIMATE.start_main_~A~0#1| 4294967296) 20) (= (mod |c_ULTIMATE.start_main_~p~0#1| 2) 0)) is different from false [2024-11-14 04:35:26,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:35:26,927 INFO L93 Difference]: Finished difference Result 514 states and 683 transitions. [2024-11-14 04:35:26,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 04:35:26,927 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 4.4) internal successors, (44), 13 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 104 [2024-11-14 04:35:26,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:35:26,929 INFO L225 Difference]: With dead ends: 514 [2024-11-14 04:35:26,929 INFO L226 Difference]: Without dead ends: 513 [2024-11-14 04:35:26,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 36.2s TimeCoverageRelationStatistics Valid=340, Invalid=2419, Unknown=5, NotChecked=206, Total=2970 [2024-11-14 04:35:26,931 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 109 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 137 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:35:26,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 237 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 557 Invalid, 2 Unknown, 137 Unchecked, 7.2s Time] [2024-11-14 04:35:26,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-14 04:35:27,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 470. [2024-11-14 04:35:27,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 393 states have (on average 1.2951653944020356) internal successors, (509), 404 states have internal predecessors, (509), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 04:35:27,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 635 transitions. [2024-11-14 04:35:27,078 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 635 transitions. Word has length 104 [2024-11-14 04:35:27,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:35:27,079 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 635 transitions. [2024-11-14 04:35:27,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 4.4) internal successors, (44), 13 states have internal predecessors, (44), 4 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-14 04:35:27,079 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 635 transitions. [2024-11-14 04:35:27,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-14 04:35:27,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:35:27,081 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:35:27,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 04:35:27,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-14 04:35:27,282 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:35:27,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:35:27,282 INFO L85 PathProgramCache]: Analyzing trace with hash -463922650, now seen corresponding path program 1 times [2024-11-14 04:35:27,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:35:27,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569139519] [2024-11-14 04:35:27,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:35:27,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:35:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:35:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-14 04:35:27,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:35:27,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569139519] [2024-11-14 04:35:27,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569139519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:35:27,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435631498] [2024-11-14 04:35:27,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:35:27,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:35:27,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:35:27,710 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:35:27,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 04:35:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:35:27,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:35:27,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:35:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-14 04:35:28,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:35:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-14 04:35:32,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435631498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:35:32,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1539231356] [2024-11-14 04:35:32,231 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 04:35:32,231 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:35:32,231 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:35:32,232 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:35:32,232 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:35:34,718 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:35:34,719 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:35:34,721 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:35:45,894 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30320#(and (exists ((|v_ULTIMATE.start_main_~p~0#1_225| Int) (|v_ULTIMATE.start_main_~p~0#1_226| Int)) (and (or (and (= (+ (div |v_ULTIMATE.start_main_~p~0#1_225| 2) 1) |v_ULTIMATE.start_main_~p~0#1_226|) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_225| 2) 0)) (<= (+ |v_ULTIMATE.start_main_~p~0#1_225| 1) 0)) (and (or (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_225| 1)) (= (mod |v_ULTIMATE.start_main_~p~0#1_225| 2) 0)) (= (div |v_ULTIMATE.start_main_~p~0#1_225| 2) |v_ULTIMATE.start_main_~p~0#1_226|))) (<= (div |v_ULTIMATE.start_main_~p~0#1_225| 2) 9223372036854775807) (or (and (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_225| 2)) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_225| 2) 0))) (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_225| 2)))))) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 04:35:45,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:35:45,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:35:45,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-11-14 04:35:45,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392148393] [2024-11-14 04:35:45,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:35:45,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 04:35:45,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:35:45,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 04:35:45,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=2292, Unknown=4, NotChecked=0, Total=2652 [2024-11-14 04:35:45,897 INFO L87 Difference]: Start difference. First operand 470 states and 635 transitions. Second operand has 21 states, 20 states have (on average 8.0) internal successors, (160), 21 states have internal predecessors, (160), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-14 04:35:46,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:35:46,608 INFO L93 Difference]: Finished difference Result 470 states and 635 transitions. [2024-11-14 04:35:46,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:35:46,609 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 8.0) internal successors, (160), 21 states have internal predecessors, (160), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 104 [2024-11-14 04:35:46,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:35:46,611 INFO L225 Difference]: With dead ends: 470 [2024-11-14 04:35:46,611 INFO L226 Difference]: Without dead ends: 468 [2024-11-14 04:35:46,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1394 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=429, Invalid=2647, Unknown=4, NotChecked=0, Total=3080 [2024-11-14 04:35:46,616 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 64 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:35:46,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 359 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:35:46,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-14 04:35:46,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2024-11-14 04:35:46,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 393 states have (on average 1.2340966921119594) internal successors, (485), 402 states have internal predecessors, (485), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 04:35:46,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 611 transitions. [2024-11-14 04:35:46,747 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 611 transitions. Word has length 104 [2024-11-14 04:35:46,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:35:46,748 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 611 transitions. [2024-11-14 04:35:46,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 8.0) internal successors, (160), 21 states have internal predecessors, (160), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-14 04:35:46,748 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 611 transitions. [2024-11-14 04:35:46,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-14 04:35:46,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:35:46,750 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:35:46,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-14 04:35:46,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-14 04:35:46,951 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:35:46,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:35:46,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1496700149, now seen corresponding path program 1 times [2024-11-14 04:35:46,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:35:46,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292434551] [2024-11-14 04:35:46,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:35:46,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:35:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:35:47,363 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-14 04:35:47,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:35:47,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292434551] [2024-11-14 04:35:47,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292434551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:35:47,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644761287] [2024-11-14 04:35:47,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:35:47,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:35:47,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:35:47,368 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:35:47,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 04:35:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:35:47,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:35:47,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:35:47,884 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-14 04:35:47,884 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:35:49,929 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-14 04:35:49,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644761287] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:35:49,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1930141081] [2024-11-14 04:35:49,931 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 04:35:49,931 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:35:49,931 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:35:49,931 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:35:49,931 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:35:51,995 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:35:51,996 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:35:51,997 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:36:02,057 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32137#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_242| Int) (|v_ULTIMATE.start_main_~p~0#1_243| Int)) (and (or (and (or (< 0 (+ |v_ULTIMATE.start_main_~p~0#1_242| 1)) (= (mod |v_ULTIMATE.start_main_~p~0#1_242| 2) 0)) (= (div |v_ULTIMATE.start_main_~p~0#1_242| 2) |v_ULTIMATE.start_main_~p~0#1_243|)) (and (= |v_ULTIMATE.start_main_~p~0#1_243| (+ (div |v_ULTIMATE.start_main_~p~0#1_242| 2) 1)) (<= (+ |v_ULTIMATE.start_main_~p~0#1_242| 1) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_242| 2) 0)))) (or (and (= (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_242| 2)) 0) (not (= (mod |v_ULTIMATE.start_main_~p~0#1_242| 2) 0))) (< 0 (+ 9223372036854775809 (div |v_ULTIMATE.start_main_~p~0#1_242| 2)))) (or (= 9223372036854775807 (div |v_ULTIMATE.start_main_~p~0#1_242| 2)) (< (div |v_ULTIMATE.start_main_~p~0#1_242| 2) 9223372036854775807)))) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 04:36:02,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:36:02,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:36:02,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-14 04:36:02,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150741204] [2024-11-14 04:36:02,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:36:02,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 04:36:02,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:36:02,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 04:36:02,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=2391, Unknown=2, NotChecked=0, Total=2756 [2024-11-14 04:36:02,059 INFO L87 Difference]: Start difference. First operand 468 states and 611 transitions. Second operand has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 22 states have internal predecessors, (169), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-11-14 04:36:04,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:36:04,329 INFO L93 Difference]: Finished difference Result 777 states and 1005 transitions. [2024-11-14 04:36:04,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 04:36:04,329 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 22 states have internal predecessors, (169), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) Word has length 105 [2024-11-14 04:36:04,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:36:04,332 INFO L225 Difference]: With dead ends: 777 [2024-11-14 04:36:04,332 INFO L226 Difference]: Without dead ends: 776 [2024-11-14 04:36:04,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1773 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=597, Invalid=3433, Unknown=2, NotChecked=0, Total=4032 [2024-11-14 04:36:04,333 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 336 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:36:04,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 496 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 04:36:04,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2024-11-14 04:36:04,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 684. [2024-11-14 04:36:04,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 584 states have (on average 1.2123287671232876) internal successors, (708), 593 states have internal predecessors, (708), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-14 04:36:04,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 884 transitions. [2024-11-14 04:36:04,528 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 884 transitions. Word has length 105 [2024-11-14 04:36:04,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:36:04,528 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 884 transitions. [2024-11-14 04:36:04,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 22 states have internal predecessors, (169), 13 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 13 states have call predecessors, (42), 13 states have call successors, (42) [2024-11-14 04:36:04,529 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 884 transitions. [2024-11-14 04:36:04,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 04:36:04,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:36:04,530 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:36:04,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-14 04:36:04,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-14 04:36:04,733 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:36:04,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:36:04,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2138564542, now seen corresponding path program 3 times [2024-11-14 04:36:04,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:36:04,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646144238] [2024-11-14 04:36:04,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:36:04,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:36:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:36:04,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1623903304] [2024-11-14 04:36:04,781 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:36:04,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:36:04,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:36:04,783 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:36:04,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 04:36:04,879 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:36:04,879 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:36:04,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 04:36:04,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:36:06,340 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-14 04:36:06,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:36:06,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:36:06,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646144238] [2024-11-14 04:36:06,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:36:06,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623903304] [2024-11-14 04:36:06,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623903304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:36:06,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [386044098] [2024-11-14 04:36:06,835 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 04:36:06,835 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:36:06,835 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:36:06,835 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:36:06,835 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:36:08,762 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:36:08,764 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:36:08,765 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:36:17,940 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34318#(and (exists ((|v_ULTIMATE.start_main_~B~0#1_62| Int) (|v_ULTIMATE.start_main_~q~0#1_120| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_120| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_120| (mod |v_ULTIMATE.start_main_~B~0#1_62| 4294967296))))) (<= 1 |#StackHeapBarrier|))' at error location [2024-11-14 04:36:17,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:36:17,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:36:17,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-14 04:36:17,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782628630] [2024-11-14 04:36:17,940 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:36:17,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 04:36:17,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:36:17,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 04:36:17,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=2036, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 04:36:17,942 INFO L87 Difference]: Start difference. First operand 684 states and 884 transitions. Second operand has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-14 04:36:20,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:36:20,040 INFO L93 Difference]: Finished difference Result 709 states and 915 transitions. [2024-11-14 04:36:20,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:36:20,041 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 108 [2024-11-14 04:36:20,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:36:20,043 INFO L225 Difference]: With dead ends: 709 [2024-11-14 04:36:20,043 INFO L226 Difference]: Without dead ends: 708 [2024-11-14 04:36:20,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1160 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=423, Invalid=3237, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 04:36:20,044 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 158 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:36:20,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 397 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 04:36:20,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-14 04:36:20,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 684. [2024-11-14 04:36:20,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 584 states have (on average 1.207191780821918) internal successors, (705), 593 states have internal predecessors, (705), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-14 04:36:20,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 881 transitions. [2024-11-14 04:36:20,203 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 881 transitions. Word has length 108 [2024-11-14 04:36:20,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:36:20,203 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 881 transitions. [2024-11-14 04:36:20,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.846153846153846) internal successors, (63), 15 states have internal predecessors, (63), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-14 04:36:20,204 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 881 transitions. [2024-11-14 04:36:20,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-14 04:36:20,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:36:20,205 INFO L215 NwaCegarLoop]: trace histogram [18, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:36:20,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-14 04:36:20,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-14 04:36:20,410 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:36:20,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:36:20,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1532451857, now seen corresponding path program 1 times [2024-11-14 04:36:20,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:36:20,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162136402] [2024-11-14 04:36:20,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:36:20,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:36:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:36:20,605 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-14 04:36:20,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:36:20,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162136402] [2024-11-14 04:36:20,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162136402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:36:20,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619399602] [2024-11-14 04:36:20,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:36:20,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:36:20,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:36:20,609 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:36:20,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 04:36:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:36:20,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:36:20,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:36:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-14 04:36:20,884 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:36:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-14 04:36:21,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619399602] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:36:21,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1065862064] [2024-11-14 04:36:21,335 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2024-11-14 04:36:21,336 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:36:21,336 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:36:21,336 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:36:21,336 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:36:22,483 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:36:22,484 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:36:22,485 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:36:24,890 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '36730#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1_271| Int)) (and (= (* 2 (* |v_ULTIMATE.start_main_~p~0#1_271| (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) |ULTIMATE.start_main_~d~0#1|) (<= 4611686018427387904 |v_ULTIMATE.start_main_~p~0#1_271|) (<= (* |v_ULTIMATE.start_main_~p~0#1_271| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (<= (* |v_ULTIMATE.start_main_~p~0#1_271| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 4611686018427387903))))' at error location [2024-11-14 04:36:24,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:36:24,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:36:24,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-14 04:36:24,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404844861] [2024-11-14 04:36:24,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:36:24,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 04:36:24,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:36:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 04:36:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=803, Unknown=0, NotChecked=0, Total=992 [2024-11-14 04:36:24,893 INFO L87 Difference]: Start difference. First operand 684 states and 881 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 14 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 14 states have call predecessors, (42), 14 states have call successors, (42) [2024-11-14 04:36:25,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:36:25,987 INFO L93 Difference]: Finished difference Result 1672 states and 2203 transitions. [2024-11-14 04:36:25,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 04:36:25,988 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 14 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 14 states have call predecessors, (42), 14 states have call successors, (42) Word has length 114 [2024-11-14 04:36:25,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:36:25,991 INFO L225 Difference]: With dead ends: 1672 [2024-11-14 04:36:25,991 INFO L226 Difference]: Without dead ends: 1670 [2024-11-14 04:36:25,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=189, Invalid=803, Unknown=0, NotChecked=0, Total=992 [2024-11-14 04:36:25,992 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 505 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:36:25,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 388 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 04:36:25,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2024-11-14 04:36:26,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 750. [2024-11-14 04:36:26,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 632 states have (on average 1.1993670886075949) internal successors, (758), 641 states have internal predecessors, (758), 106 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-14 04:36:26,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 970 transitions. [2024-11-14 04:36:26,154 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 970 transitions. Word has length 114 [2024-11-14 04:36:26,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:36:26,154 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 970 transitions. [2024-11-14 04:36:26,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 15 states have internal predecessors, (111), 14 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 14 states have call predecessors, (42), 14 states have call successors, (42) [2024-11-14 04:36:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 970 transitions. [2024-11-14 04:36:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-14 04:36:26,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:36:26,155 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:36:26,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 04:36:26,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-14 04:36:26,356 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:36:26,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:36:26,356 INFO L85 PathProgramCache]: Analyzing trace with hash 2128812516, now seen corresponding path program 3 times [2024-11-14 04:36:26,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:36:26,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357361309] [2024-11-14 04:36:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:36:26,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:36:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:36:26,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [326576691] [2024-11-14 04:36:26,388 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:36:26,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:36:26,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:36:26,392 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:36:26,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d4c526a-83fc-4aea-b405-2dc75610d518/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-14 04:36:26,496 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:36:26,496 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:36:26,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-14 04:36:26,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:36:28,182 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-14 04:36:28,182 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:38:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-14 04:38:04,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:38:04,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357361309] [2024-11-14 04:38:04,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:38:04,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326576691] [2024-11-14 04:38:04,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326576691] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:38:04,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [244190735] [2024-11-14 04:38:04,711 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 04:38:04,711 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:38:04,711 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:38:04,711 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:38:04,712 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:38:06,712 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:38:06,713 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 04:38:06,714 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:38:34,428 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40333#(exists ((|v_ULTIMATE.start_main_~r~0#1_114| Int) (|v_ULTIMATE.start_main_~B~0#1_63| Int) (|v_ULTIMATE.start_main_~q~0#1_130| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (* |v_ULTIMATE.start_main_~q~0#1_130| (mod |v_ULTIMATE.start_main_~B~0#1_63| 4294967296)) 9223372036854775807) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_130| (mod |v_ULTIMATE.start_main_~B~0#1_63| 4294967296)) |v_ULTIMATE.start_main_~r~0#1_114|)) (<= |v_ULTIMATE.start_main_~q~0#1_130| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_130| 9223372036854775808))))' at error location [2024-11-14 04:38:34,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:38:34,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:38:34,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2024-11-14 04:38:34,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351975849] [2024-11-14 04:38:34,429 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:38:34,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-14 04:38:34,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:38:34,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-14 04:38:34,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=500, Invalid=3658, Unknown=2, NotChecked=0, Total=4160 [2024-11-14 04:38:34,431 INFO L87 Difference]: Start difference. First operand 750 states and 970 transitions. Second operand has 34 states, 33 states have (on average 3.757575757575758) internal successors, (124), 34 states have internal predecessors, (124), 11 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 11 states have call predecessors, (29), 11 states have call successors, (29) [2024-11-14 04:38:47,680 WARN L286 SmtUtils]: Spent 10.30s on a formula simplification. DAG size of input: 192 DAG size of output: 97 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:39:01,848 WARN L286 SmtUtils]: Spent 9.31s on a formula simplification. DAG size of input: 147 DAG size of output: 86 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:39:03,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:39:07,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:39:21,252 WARN L286 SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 158 DAG size of output: 90 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:39:31,329 WARN L286 SmtUtils]: Spent 7.98s on a formula simplification. DAG size of input: 171 DAG size of output: 106 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:39:45,727 WARN L286 SmtUtils]: Spent 11.66s on a formula simplification. DAG size of input: 140 DAG size of output: 121 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:39:48,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:39:53,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:39:55,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:40:24,991 WARN L286 SmtUtils]: Spent 26.22s on a formula simplification. DAG size of input: 205 DAG size of output: 117 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:40:27,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:40:30,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:40:37,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:40:39,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:40:41,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:41:04,756 WARN L286 SmtUtils]: Spent 19.10s on a formula simplification. DAG size of input: 140 DAG size of output: 111 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:41:06,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:41:36,603 WARN L286 SmtUtils]: Spent 14.54s on a formula simplification. DAG size of input: 129 DAG size of output: 117 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)